Apache Tomcat

Collect and parse logs and metrics from Apache Tomcat servers with Elastic Agent.


Version	1.3.0 (View all)
Compatible Kibana version(s)	8.8.0 or higher
Supported Serverless project types What's this?	Security Observability
Subscription level What's this?	Basic
Level of support What's this?	Elastic

Overview

Apache Tomcat is a free and open-source implementation of the jakarta servlet, jakarta expression language, and websocket technologies. It provides a pure java http web server environment in which java code can also run. Thus, it is a java web application server, although not a full JEE application server.

Use the Apache Tomcat integration to:

Collect metrics related to the cache, connection pool, memory, request, session and thread pool and collect logs related to access, catalina, and localhost.
Create visualizations to monitor, measure and analyze the usage trend and key data, and derive business insights.
Create alerts to reduce the MTTD and also the MTTR by referencing relevant logs when troubleshooting an issue.

Data streams

The Apache Tomcat integration collects logs and metrics data.

Logs help you keep a record of events that happen on your machine. The Log data streams collected by Apache Tomcat integration are access, catalina, and localhost, so that users can keep track of the IP addresses of the clients, bytes returned to the client or sent by clients, etc., so that users could monitor and troubleshoot the performance of Java applications.

Metrics give you insight into the statistics of the Apache Tomcat. The Metric data streams collected by the Apache Tomcat integration are cache, connection pool, memory, request, session and thread pool, so that the user can monitor and troubleshoot the performance of the Apache Tomcat instance.

Data streams:

access: Collects information related to the HTTP transactions, client IP, response code and request processing time.
cache: Collects information related to the overall cache of the Apache Tomcat instance.
catalina: Collects information related to the startup and shutdown of the Apache Tomcat application server, the deployment of new applications, or the failure of one or more subsystems.
connection pool: Collects information related to connection pool such as number of active and idle connections.
localhost: Collects information related to Web application activity which is related to HTTP transactions between the application server and the client.
memory: Collects information related to heap memory, non-heap memory and garbage collection of the Tomcat instance.
request: Collects information related to requests of the Apache Tomcat instance.
thread pool: Collects information related to the overall states of the threads, CPU time and processing termination time of the threads in the Tomcat instance.
session: Collects information related to overall created, active and expired sessions of the Tomcat instance.

Note:

Users can monitor and see the log inside the ingested documents for Apache Tomcat in the logs-* index pattern from Discover, and for metrics, the index pattern is metrics-*.

Compatibility

This integration has been tested against Apache Tomcat versions 10.1.5, 9.0.71 and 8.5.85, and Prometheus version 0.20.0.

Prerequisites

You need Elasticsearch for storing and searching your data and Kibana for visualizing and managing it. You can use our hosted Elasticsearch Service on Elastic Cloud, which is recommended or self-manage the Elastic Stack on your own hardware.

In order to ingest data from the Apache Tomcat, user must have

Configured Prometheus in Apache Tomcat instance

Setup

For step-by-step instructions on how to set up an integration, see the Getting started guide.

Steps to setup Prometheus

Here are the steps to configure Prometheus in Apache Tomcat instance:

Go to <TOMCAT_HOME>/webapps from Apache Tomcat instance.
Please find latest Prometheus version, replace in below command and perform from Apache Tomcat instance: -

wget https://repo1.maven.org/maven2/io/prometheus/jmx/jmx_prometheus_javaagent/<prometheus_version>/jmx_prometheus_javaagent-<prometheus_version>.jar

Create config.yml file in <TOMCAT_HOME>/webapps and paste the following content in config.yml file: -

rules:
- pattern: ".*"

Go to /etc/systemd/system and add the following content within the [Service] section of the tomcat.service file: -

Environment='JAVA_OPTS=-javaagent:<TOMCAT_HOME>/webapps/jmx_prometheus_javaagent-<prometheus_version>.jar=<prometheus_port>:/opt/tomcat/webapps/config.yml'

Run the following commands to reload the systemd manager configuration and restart the Apache Tomcat service to set the updated environment variable: -

systemctl daemon-reload
systemctl restart tomcat

Steps to configure Filestream input for Access logs

Here are the steps to configure Log format in Apache Tomcat instance:

Go to <TOMCAT_HOME>/conf/server.xml from Apache Tomcat instance.
The user can update the log format in the pattern field of the class org.apache.catalina.valves.AccessLogValve. Here is an example of the org.apache.catalina.valves.AccessLogValve class.

<Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs"
       prefix="localhost_access_log" suffix=".txt"
       pattern='%h %l %u %t "%r" %s %b %A %X %T "%{Referer}i" "%{User-Agent}i" X-Forwarded-For="%{X-Forwarded-For}i"' />

The supported log formats are:

Common Log Format :- '%h %l %u %t "%r" %s %b'
Combined Log Format :- '%h %l %u %t "%r" %s %b "%{Referrer}i" "%{User-Agent}i"'
Combined Log Format + X-Forwarded-For header :- '%h %l %u %t "%r" %s %b %A %X %T "%{Referer}i" "%{User-Agent}i" X-Forwarded-For="%{X-Forwarded-For}i"'

Run the following commands to restart Apache Tomcat instance: -

systemctl restart tomcat

Supported log formats for Catalina and Localhost logs:

With error stack trace:

dd-MMM-yyyy HH:mm:ss.SSS [Severity] [Subsystem] [Message Text] [Error Stack Trace]

Without error stack trace:

dd-MMM-yyyy HH:mm:ss.SSS [Severity] [Subsystem] [Message Text]

Note:

Restarting Apache Tomcat does not affect the virtual desktops that are currently running. It will only prevent new users from logging in for the duration of the restart process (typically several seconds).
A user can support a new format of log by writing their own custom ingest pipelines. To facilitate the multiline parsing of catalina and localhost logs, the multiline configuration can be used to match the multiline pattern of logs.

Configuration

You need the following information from your Apache Tomcat instance to configure this integration in Elastic:

Apache Tomcat Hostname

Host Configuration Format: http[s]://<hostname>:<port>/<metrics_path>

Example Host Configuration: http://localhost:9090/metrics

Validation

After the integration is successfully configured, clicking on the Assets tab of the Apache Tomcat Integration should display a list of available dashboards. Click on the dashboard available for your configured data stream. It should be populated with the required data.

Troubleshooting

apache_tomcat.access.header_forwarder is renamed to client.ip in version 0.16.1 of this integration. Hence please consider changing apache_tomcat.access.header_forwarder to client.ip field where it is being used. By using the Update By Query API, apache_tomcat.access.header_forwarder can be renamed to client.ip field for all the documents which would help to adapt this change.
In case of data ingestion if user encounter following errors then it is because of the rate limit of Prometheus endpoint. Here there won't be any data loss but if user still want to avoid it then make sure configured Prometheus endpoint is not being accessed from multiple places.

{
  "error": {
    "message": "unable to decode response from prometheus endpoint: error making http request: Get \"http://127.0.0.1/metrics\": dial tcp 127.0.0.1: connect: connection refused"
  }
}

If events are ingested with incorrect timestamps, kindly verify the Timezone setting for the Catalina and Localhost logs data streams on the 'Add Apache Tomcat' page.

Logs reference

Access

This is the Access data stream. This data stream collects logs related to the HTTP transactions, client IP, response code and request processing time.

An example event for access looks as following:

{
    "@timestamp": "2023-09-27T19:06:51.000Z",
    "agent": {
        "ephemeral_id": "660e6653-ce16-42eb-8e2e-9952cf9745d2",
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.10.1"
    },
    "apache_tomcat": {
        "access": {
            "http": {
                "ident": "-",
                "useragent": "-"
            }
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.access",
        "namespace": "ep",
        "type": "logs"
    },
    "destination": {
        "bytes": 11235
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "snapshot": false,
        "version": "8.10.1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.access",
        "ingested": "2023-09-27T19:07:26Z",
        "kind": "event",
        "module": "apache_tomcat",
        "original": "127.0.0.1 - - [27/Sep/2023:19:06:51 +0000] \"GET / HTTP/1.1\" 200 11235",
        "outcome": "success",
        "type": [
            "access"
        ]
    },
    "http": {
        "request": {
            "method": "GET"
        },
        "response": {
            "status_code": 200
        },
        "version": "1.1"
    },
    "input": {
        "type": "filestream"
    },
    "log": {
        "file": {
            "device_id": 141,
            "inode": 18615366,
            "path": "/tmp/service_logs/localhost_access_log.2023-09-27.txt"
        },
        "offset": 0
    },
    "related": {
        "ip": [
            "127.0.0.1"
        ]
    },
    "source": {
        "ip": "127.0.0.1"
    },
    "tags": [
        "preserve_original_event",
        "forwarded",
        "apache_tomcat-access"
    ],
    "url": {
        "original": "/",
        "path": "/"
    }
}

Exported fields

Field	Description	Type	Unit
@timestamp	Event timestamp.	date
apache_tomcat.access.connection_status	Connection status when response is completed.	keyword
apache_tomcat.access.http.ident	Remote logical username from identd.	keyword
apache_tomcat.access.http.useragent	The user id of the authenticated user requesting the page (if HTTP authentication is used).	keyword
apache_tomcat.access.ip.local	Local IP address.	ip
apache_tomcat.access.response_time	Response time of the endpoint.	double	s
client.ip	IP address of the client (IPv4 or IPv6).	ip
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
destination.bytes	Bytes sent from the destination to the source.	long
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.original	Raw text message of entire event. Used to demonstrate log integrity or where the full log message (before splitting it up in multiple parts) may be required, e.g. for reindex. This field is not indexed and doc_values are disabled. It cannot be searched, but it can be retrieved from `_source`. If users wish to override this and index this field, please see `Field data types` in the `Elasticsearch Reference`.	keyword
event.outcome	This is one of four ECS Categorization Fields, and indicates the lowest level in the ECS category hierarchy. `event.outcome` simply denotes whether the event represents a success or a failure from the perspective of the entity that produced the event. Note that when a single transaction is described in multiple events, each event may populate different values of `event.outcome`, according to their perspective. Also note that in the case of a compound event (a single event that contains multiple logical events), this field should be populated with the value that best captures the overall success or failure from the perspective of the event producer. Further note that not all events will have an associated outcome. For example, this field is generally not populated for metric events, events with `event.type:info`, or any events for which an outcome does not make logical sense.	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
http.request.method	HTTP request method. The value should retain its casing from the original event. For example, `GET`, `get`, and `GeT` are all considered valid values for this field.	keyword
http.request.referrer	Referrer for this HTTP request.	keyword
http.response.status_code	HTTP response status code.	long
http.version	HTTP version.	keyword
input.type	Type of Filebeat input.	keyword
log.file.device_id	ID of the device containing the filesystem where the file resides.	keyword
log.file.fingerprint	The sha256 fingerprint identity of the file when fingerprinting is enabled.	keyword
log.file.idxhi	The high-order part of a unique identifier that is associated with a file. (Windows-only)	keyword
log.file.idxlo	The low-order part of a unique identifier that is associated with a file. (Windows-only)	keyword
log.file.inode	Inode number of the log file.	keyword
log.file.vol	The serial number of the volume that contains a file. (Windows-only)	keyword
log.offset	Log offset.	long
related.ip	All of the IPs seen on your event.	ip
source.ip	IP address of the source (IPv4 or IPv6).	ip
tags	List of keywords used to tag each event.	keyword
url.extension	The field contains the file extension from the original request url, excluding the leading dot. The file extension is only set if it exists, as not every url has a file extension. The leading period must not be included. For example, the value must be "png", not ".png". Note that when the file name has multiple extensions (example.tar.gz), only the last one should be captured ("gz", not "tar.gz").	keyword
url.original	Unmodified original url as seen in the event source. Note that in network monitoring, the observed URL may be a full URL, whereas in access logs, the URL is often just represented as a path. This field is meant to represent the URL as it was observed, complete or not.	wildcard
url.original.text	Multi-field of `url.original`.	match_only_text
url.path	Path of the request, such as "/search".	wildcard
user_agent.device.name	Name of the device.	keyword
user_agent.name	Name of the user agent.	keyword
user_agent.original	Unparsed user_agent string.	keyword
user_agent.original.text	Multi-field of `user_agent.original`.	match_only_text
user_agent.os.full	Operating system name, including the version or code name.	keyword
user_agent.os.full.text	Multi-field of `user_agent.os.full`.	match_only_text
user_agent.os.name	Operating system name, without the version.	keyword
user_agent.os.name.text	Multi-field of `user_agent.os.name`.	match_only_text
user_agent.os.version	Operating system version as a raw string.	keyword
user_agent.version	Version of the user agent.	keyword

Catalina

This is the Catalina data stream. This data stream collects logs related to the startup and shutdown of the Apache Tomcat application server, the deployment of new applications, or the failure of one or more subsystems.

An example event for catalina looks as following:

{
    "@timestamp": "2023-09-27T19:09:05.176Z",
    "agent": {
        "ephemeral_id": "077f3cfd-ea7d-49bc-a421-d85ae64524a4",
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.10.1"
    },
    "apache_tomcat": {
        "catalina": {
            "subsystem": "main"
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.catalina",
        "namespace": "ep",
        "type": "logs"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "snapshot": false,
        "version": "8.10.1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.catalina",
        "ingested": "2023-09-27T19:10:10Z",
        "kind": "event",
        "module": "apache_tomcat",
        "original": "27-Sep-2023 19:09:05.176 INFO [main] org.apache.catalina.startup.VersionLoggerListener.log Server version name:   Apache Tomcat/10.1.5",
        "timezone": "UTC",
        "type": [
            "info"
        ]
    },
    "input": {
        "type": "filestream"
    },
    "log": {
        "file": {
            "device_id": 141,
            "inode": 18617251,
            "path": "/tmp/service_logs/catalina.2023-09-27.log"
        },
        "level": "info",
        "offset": 0
    },
    "message": "org.apache.catalina.startup.VersionLoggerListener.log Server version name:   Apache Tomcat/10.1.5",
    "tags": [
        "preserve_original_event",
        "forwarded",
        "apache_tomcat-catalina"
    ]
}

Exported fields

Field	Description	Type
@timestamp	Event timestamp.	date
apache_tomcat.catalina.subsystem	Indicates Apache Tomcat’s subsystem or the type of the module that was the source of the message. For example, RBPM or Java Messaging Service (JMS).	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
error.stack_trace	The stack trace of this error in plain text.	wildcard
error.stack_trace.text	Multi-field of `error.stack_trace`.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.original	Raw text message of entire event. Used to demonstrate log integrity or where the full log message (before splitting it up in multiple parts) may be required, e.g. for reindex. This field is not indexed and doc_values are disabled. It cannot be searched, but it can be retrieved from `_source`. If users wish to override this and index this field, please see `Field data types` in the `Elasticsearch Reference`.	keyword
event.timezone	This field should be populated when the event's timestamp does not include timezone information already (e.g. default Syslog timestamps). It's optional otherwise. Acceptable timezone formats are: a canonical ID (e.g. "Europe/Amsterdam"), abbreviated (e.g. "EST") or an HH:mm differential (e.g. "-05:00").	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
input.type	Type of Filebeat input.	keyword
log.file.device_id	ID of the device containing the filesystem where the file resides.	keyword
log.file.fingerprint	The sha256 fingerprint identity of the file when fingerprinting is enabled.	keyword
log.file.idxhi	The high-order part of a unique identifier that is associated with a file. (Windows-only)	keyword
log.file.idxlo	The low-order part of a unique identifier that is associated with a file. (Windows-only)	keyword
log.file.inode	Inode number of the log file.	keyword
log.file.vol	The serial number of the volume that contains a file. (Windows-only)	keyword
log.level	Original log level of the log event. If the source of the event provides a log level or textual severity, this is the one that goes in `log.level`. If your source doesn't specify one, you may put your event transport's severity here (e.g. Syslog severity). Some examples are `warn`, `err`, `i`, `informational`.	keyword
log.offset	Log offset.	long
message	For log events the message field contains the log message, optimized for viewing in a log viewer. For structured logs without an original message field, other fields can be concatenated to form a human-readable summary of the event. If multiple messages exist, they can be combined into one message.	match_only_text
tags	List of keywords used to tag each event.	keyword

Localhost

This is the Localhost data stream. This data stream collects logs related to Web application activity which is related to HTTP transactions between the application server and the client.

An example event for localhost looks as following:

{
    "@timestamp": "2023-02-23T15:40:03.711Z",
    "agent": {
        "ephemeral_id": "98a908e5-d419-4da8-8985-4d1417e50646",
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "name": "docker-fleet-agent",
        "type": "filebeat",
        "version": "8.10.1"
    },
    "apache_tomcat": {
        "localhost": {
            "subsystem": "localhost-startStop-1"
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.localhost",
        "namespace": "ep",
        "type": "logs"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "snapshot": false,
        "version": "8.10.1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.localhost",
        "ingested": "2023-09-27T19:12:55Z",
        "kind": "event",
        "module": "apache_tomcat",
        "original": "23-Feb-2023 15:40:03.711 INFO [localhost-startStop-1] org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()",
        "timezone": "UTC",
        "type": [
            "info"
        ]
    },
    "input": {
        "type": "filestream"
    },
    "log": {
        "file": {
            "device_id": 141,
            "inode": 18619079,
            "path": "/tmp/service_logs/localhost.log"
        },
        "level": "info",
        "offset": 0
    },
    "message": "org.apache.catalina.core.ApplicationContext.log ContextListener: contextInitialized()",
    "tags": [
        "preserve_original_event",
        "forwarded",
        "apache_tomcat-localhost"
    ]
}

Exported fields

Field	Description	Type
@timestamp	Event timestamp.	date
apache_tomcat.localhost.subsystem	Indicates Apache Tomcat’s subsystem or the type of the module that was the source of the message. For example, RBPM or Java Messaging Service (JMS).	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
error.stack_trace	The stack trace of this error in plain text.	wildcard
error.stack_trace.text	Multi-field of `error.stack_trace`.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.original	Raw text message of entire event. Used to demonstrate log integrity or where the full log message (before splitting it up in multiple parts) may be required, e.g. for reindex. This field is not indexed and doc_values are disabled. It cannot be searched, but it can be retrieved from `_source`. If users wish to override this and index this field, please see `Field data types` in the `Elasticsearch Reference`.	keyword
event.timezone	This field should be populated when the event's timestamp does not include timezone information already (e.g. default Syslog timestamps). It's optional otherwise. Acceptable timezone formats are: a canonical ID (e.g. "Europe/Amsterdam"), abbreviated (e.g. "EST") or an HH:mm differential (e.g. "-05:00").	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
input.type	Type of Filebeat input.	keyword
log.file.device_id	ID of the device containing the filesystem where the file resides.	keyword
log.file.fingerprint	The sha256 fingerprint identity of the file when fingerprinting is enabled.	keyword
log.file.idxhi	The high-order part of a unique identifier that is associated with a file. (Windows-only)	keyword
log.file.idxlo	The low-order part of a unique identifier that is associated with a file. (Windows-only)	keyword
log.file.inode	Inode number of the log file.	keyword
log.file.vol	The serial number of the volume that contains a file. (Windows-only)	keyword
log.level	Original log level of the log event. If the source of the event provides a log level or textual severity, this is the one that goes in `log.level`. If your source doesn't specify one, you may put your event transport's severity here (e.g. Syslog severity). Some examples are `warn`, `err`, `i`, `informational`.	keyword
log.offset	Log offset.	long
message	For log events the message field contains the log message, optimized for viewing in a log viewer. For structured logs without an original message field, other fields can be concatenated to form a human-readable summary of the event. If multiple messages exist, they can be combined into one message.	match_only_text
tags	List of keywords used to tag each event.	keyword

Metrics reference

Cache

This is the Cache data stream. This data stream collects metrics related to the size of the cache and time-to-live for cache entries.

An example event for cache looks as following:

{
    "@timestamp": "2023-07-06T06:19:25.324Z",
    "agent": {
        "ephemeral_id": "dd4ae675-0ef8-49ba-9568-d7f989add4dd",
        "id": "c78eadae-edd0-4b88-ab24-f2fb84a98229",
        "name": "docker-fleet-agent",
        "type": "metricbeat",
        "version": "8.8.0"
    },
    "apache_tomcat": {
        "cache": {
            "application_name": "/",
            "hit": {
                "count": 22
            },
            "lookup": {
                "count": 37
            },
            "object": {
                "size": {
                    "max": {
                        "kb": 512
                    }
                }
            },
            "size": {
                "current": {
                    "kb": 19
                },
                "max": {
                    "kb": 10240
                }
            },
            "ttl": {
                "ms": 5000
            }
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.cache",
        "namespace": "ep",
        "type": "metrics"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "c78eadae-edd0-4b88-ab24-f2fb84a98229",
        "snapshot": false,
        "version": "8.8.0"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.cache",
        "duration": 253547035,
        "ingested": "2023-07-06T06:19:29Z",
        "kind": "metric",
        "module": "apache_tomcat",
        "type": [
            "info"
        ]
    },
    "host": {
        "architecture": "aarch64",
        "containerized": false,
        "hostname": "docker-fleet-agent",
        "id": "e8978f2086c14e13b7a0af9ed0011d19",
        "ip": [
            "172.27.0.7"
        ],
        "mac": [
            "02-42-AC-1B-00-07"
        ],
        "name": "docker-fleet-agent",
        "os": {
            "codename": "focal",
            "family": "debian",
            "kernel": "3.10.0-1160.90.1.el7.x86_64",
            "name": "Ubuntu",
            "platform": "ubuntu",
            "type": "linux",
            "version": "20.04.6 LTS (Focal Fossa)"
        }
    },
    "metricset": {
        "name": "collector",
        "period": 10000
    },
    "service": {
        "address": "http://elastic-package-service-apache_tomcat-1:9090/metrics",
        "type": "prometheus"
    },
    "tags": [
        "apache_tomcat-cache"
    ]
}

Exported fields

Field	Description	Type	Unit	Metric Type
@timestamp	Event timestamp.	date
agent.id	Unique identifier of this agent (if one exists). Example: For Beats this would be beat.id.	keyword
apache_tomcat.cache.application_name	Name of the Apache Tomcat application.	keyword
apache_tomcat.cache.hit.count	The number of requests for resources that were served from the cache.	double		gauge
apache_tomcat.cache.lookup.count	The number of requests for resources.	double		gauge
apache_tomcat.cache.object.size.max.kb	The maximum permitted size for a single object in the cache in kB.	double		gauge
apache_tomcat.cache.size.current.kb	The current estimate of the cache size in kB.	double		gauge
apache_tomcat.cache.size.max.kb	The maximum permitted size of the cache in kB.	double		gauge
apache_tomcat.cache.ttl.ms	The time-to-live for cache entries in milliseconds.	double	ms	gauge
cloud.account.id	The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.	keyword
cloud.availability_zone	Availability zone in which this host, resource, or service is located.	keyword
cloud.instance.id	Instance ID of the host machine.	keyword
cloud.provider	Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.	keyword
cloud.region	Region in which this host, resource, or service is located.	keyword
container.id	Unique container id.	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
host.name	Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name (FQDN), or a name specified by the user. The recommended value is the lowercase FQDN of the host.	keyword
service.address	Address where data about this service was collected from. This should be a URI, network address (ipv4:port or [ipv6]:port) or a resource path (sockets).	keyword
tags	List of keywords used to tag each event.	keyword

Connection Pool

This is the connection pool data stream. This data stream collects metrics related to connection pool such as number of active and idle connections.

An example event for connection_pool looks as following:

{
    "@timestamp": "2023-09-27T19:11:29.922Z",
    "agent": {
        "ephemeral_id": "8dcc13af-7670-441d-b51b-826f604c433b",
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "name": "docker-fleet-agent",
        "type": "metricbeat",
        "version": "8.10.1"
    },
    "apache_tomcat": {
        "connection_pool": {
            "access_to_underlying_connection_allowed": false,
            "application_name": "/",
            "cache": {
                "state": 1
            },
            "connection": {
                "abandoned_usage_tracking": false,
                "active": {
                    "count": 0
                },
                "autocommit_on_return": true,
                "clear_statement_pool_on_return": false,
                "closed": false,
                "database": {
                    "time": {
                        "max": {
                            "ms": -1
                        }
                    }
                },
                "default_transaction_isolation": -1,
                "enable_autocommit_on_return": true,
                "fast_fail_validation": false,
                "idle": {
                    "count": 0,
                    "exists": false,
                    "max": {
                        "count": 20,
                        "size": -1,
                        "time": {
                            "ms": 3
                        }
                    },
                    "min": {
                        "size": 5,
                        "time": {
                            "ms": -1
                        }
                    }
                },
                "initial_size": {
                    "count": 0
                },
                "lifetime": {
                    "max": {
                        "ms": -1
                    }
                },
                "log_expired": true,
                "min_evictable_idle": {
                    "time": 1800000
                },
                "remove_abandoned_on_borrow": false,
                "remove_abandoned_on_maintenance": false,
                "remove_abandoned_timeout": 300,
                "rollback_on_return": true,
                "test_on_return": false,
                "test_while_idle": false,
                "time_betwen_eviction_run": {
                    "time": {
                        "ms": -1
                    }
                },
                "validate": -1
            },
            "lifo": true,
            "max": {
                "total": 8
            },
            "prepared_statements": false,
            "test_on_borrow": true,
            "test_on_create": false
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.connection_pool",
        "namespace": "ep",
        "type": "metrics"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "snapshot": false,
        "version": "8.10.1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.connection_pool",
        "duration": 198881542,
        "ingested": "2023-09-27T19:11:32Z",
        "kind": "metric",
        "module": "apache_tomcat",
        "type": [
            "info"
        ]
    },
    "host": {
        "architecture": "aarch64",
        "containerized": false,
        "hostname": "docker-fleet-agent",
        "id": "ddbe644fa129402e9d5cf6452db1422d",
        "ip": [
            "172.31.0.7"
        ],
        "mac": [
            "02-42-AC-1F-00-07"
        ],
        "name": "docker-fleet-agent",
        "os": {
            "codename": "focal",
            "family": "debian",
            "kernel": "5.15.49-linuxkit",
            "name": "Ubuntu",
            "platform": "ubuntu",
            "type": "linux",
            "version": "20.04.6 LTS (Focal Fossa)"
        }
    },
    "metricset": {
        "name": "collector",
        "period": 10000
    },
    "service": {
        "address": "http://elastic-package-service-apache_tomcat-1:9090/metrics",
        "type": "prometheus"
    },
    "tags": [
        "apache_tomcat-connection_pool"
    ]
}

Exported fields

Field	Description	Type	Unit	Metric Type
@timestamp	Event timestamp.	date
agent.id	Unique identifier of this agent (if one exists). Example: For Beats this would be beat.id.	keyword
apache_tomcat.connection_pool.access_to_underlying_connection_allowed	Returns the state of connections that will be established when the connection pool is started.	boolean
apache_tomcat.connection_pool.application_name	Name of the Apache Tomcat application.	keyword
apache_tomcat.connection_pool.cache.state	Cache state of connection pool.	double		gauge
apache_tomcat.connection_pool.connection.abandoned_usage_tracking	Indicates if full stack traces are required when logAbandoned is true.	boolean
apache_tomcat.connection_pool.connection.active.count	Number of active connection in pool.	double		gauge
apache_tomcat.connection_pool.connection.autocommit_on_return	Connections being returned to the pool.	boolean
apache_tomcat.connection_pool.connection.clear_statement_pool_on_return	Keeps track of statements associated with a connection.	boolean
apache_tomcat.connection_pool.connection.closed	Random Connection Closed Exceptions.	boolean
apache_tomcat.connection_pool.connection.database.time.max.ms	Maximum time to wait for a database connection to become available in ms.	double	ms	gauge
apache_tomcat.connection_pool.connection.default_transaction_isolation	TransactionIsolation state of connections created by this pool	double		gauge
apache_tomcat.connection_pool.connection.enable_autocommit_on_return	Connections being returned to the pool will be checked and configured with Connection.	boolean
apache_tomcat.connection_pool.connection.fast_fail_validation	Timeout before a connection validation queries fail.	boolean
apache_tomcat.connection_pool.connection.idle.count	Idle number of connection pool.	double		gauge
apache_tomcat.connection_pool.connection.idle.exists	logAbandoned to figure out the connection is idle.	boolean
apache_tomcat.connection_pool.connection.idle.max.count	Maximum idle connections.	double		gauge
apache_tomcat.connection_pool.connection.idle.max.size	Returns the maximum number of connections that can remain idle in the pool.	double		gauge
apache_tomcat.connection_pool.connection.idle.max.time.ms	It represents the maximum number of objects that the pool will examine during each run of the idle object evictor thread.	double	ms	gauge
apache_tomcat.connection_pool.connection.idle.min.size	The minimum number of established connections that should be kept in the pool at all times.	double		gauge
apache_tomcat.connection_pool.connection.idle.min.time.ms	An attribute of the Tomcat DataSource object that sets the minimum time an object may sit idle in the pool before it is eligable for eviction by the idle object evictor.	double	ms	gauge
apache_tomcat.connection_pool.connection.initial_size.count	The initial number of connections that are created when the pool is started.	double		gauge
apache_tomcat.connection_pool.connection.lifetime.max.ms	The maximum lifetime in milliseconds of a connection.	double	ms	gauge
apache_tomcat.connection_pool.connection.log_expired	Log expired connection in pool.	boolean
apache_tomcat.connection_pool.connection.min_evictable_idle.time	The minimum amount of time an object may sit idle in the pool before it is eligible for eviction.	double		gauge
apache_tomcat.connection_pool.connection.remove_abandoned_on_borrow	Remove abandoned connections from the pool when a connection is borrowed.	boolean
apache_tomcat.connection_pool.connection.remove_abandoned_on_maintenance	The commons dbcp parameters which are unique from the Tomcat JDBC connection pool parameters are not being accepted.	boolean
apache_tomcat.connection_pool.connection.remove_abandoned_timeout	Timeout in seconds before an abandoned (in use) connection can be removed.	double		gauge
apache_tomcat.connection_pool.connection.rollback_on_return	The pool can terminate the transaction by calling rollback on the connection.	boolean
apache_tomcat.connection_pool.connection.test_on_return	The indication of whether objects will be validated before being returned to the pool.	boolean
apache_tomcat.connection_pool.connection.test_while_idle	Introspected attribute testWhileIdle.	boolean
apache_tomcat.connection_pool.connection.time_betwen_eviction_run.time.ms	The total amount of time in milliseconds to sleep between runs of the idle connection validation/cleaner thread.	double	ms	gauge
apache_tomcat.connection_pool.connection.validate	Validate connections from this pool.	double		gauge
apache_tomcat.connection_pool.lifo	Last In First Out connections.	boolean
apache_tomcat.connection_pool.max.total	Maximum total of connection pool.	double		gauge
apache_tomcat.connection_pool.prepared_statements	Validate connections from this pool.	boolean
apache_tomcat.connection_pool.test_on_borrow	The indication of whether objects will be validated before being borrowed from the pool.	boolean
apache_tomcat.connection_pool.test_on_create	Property determines whether or not the pool will validate objects immediately after they are created by the pool.	boolean
cloud.account.id	The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.	keyword
cloud.availability_zone	Availability zone in which this host, resource, or service is located.	keyword
cloud.instance.id	Instance ID of the host machine.	keyword
cloud.provider	Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.	keyword
cloud.region	Region in which this host, resource, or service is located.	keyword
container.id	Unique container id.	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
host.name	Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name (FQDN), or a name specified by the user. The recommended value is the lowercase FQDN of the host.	keyword
service.address	Address where data about this service was collected from. This should be a URI, network address (ipv4:port or [ipv6]:port) or a resource path (sockets).	keyword

Memory

This is the memory data stream. This data stream collects metrics related to the heap memory, non-heap memory, garbage collection time and count.

An example event for memory looks as following:

{
    "@timestamp": "2023-09-27T19:14:11.339Z",
    "agent": {
        "ephemeral_id": "e71c07db-c98b-4ee5-929a-959290720d1b",
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "name": "docker-fleet-agent",
        "type": "metricbeat",
        "version": "8.10.1"
    },
    "apache_tomcat": {
        "memory": {
            "doc_type": "gc",
            "gc": {
                "collection": {
                    "count": 0,
                    "time": {
                        "ms": 0
                    }
                },
                "valid": 1
            }
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.memory",
        "namespace": "ep",
        "type": "metrics"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "snapshot": false,
        "version": "8.10.1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.memory",
        "duration": 173318458,
        "ingested": "2023-09-27T19:14:14Z",
        "kind": "metric",
        "module": "apache_tomcat",
        "type": [
            "info"
        ]
    },
    "host": {
        "architecture": "aarch64",
        "containerized": false,
        "hostname": "docker-fleet-agent",
        "id": "ddbe644fa129402e9d5cf6452db1422d",
        "ip": [
            "172.31.0.7"
        ],
        "mac": [
            "02-42-AC-1F-00-07"
        ],
        "name": "docker-fleet-agent",
        "os": {
            "codename": "focal",
            "family": "debian",
            "kernel": "5.15.49-linuxkit",
            "name": "Ubuntu",
            "platform": "ubuntu",
            "type": "linux",
            "version": "20.04.6 LTS (Focal Fossa)"
        }
    },
    "metricset": {
        "name": "collector",
        "period": 10000
    },
    "service": {
        "address": "http://elastic-package-service-apache_tomcat-1:9090/metrics",
        "type": "prometheus"
    },
    "tags": "apache_tomcat-memory"
}

Exported fields

Field	Description	Type	Unit	Metric Type
@timestamp	Event timestamp.	date
agent.id	Unique identifier of this agent (if one exists). Example: For Beats this would be beat.id.	keyword
apache_tomcat.memory.doc_type	Document type of the event. This should be either "memory" or "gc".	keyword
apache_tomcat.memory.gc.collection.count	The cumulative number of invoked garbage collections since the start of the server.	long		counter
apache_tomcat.memory.gc.collection.time.ms	The time (in milliseconds) taken by garbage collection during the collection interval.	long	ms	gauge
apache_tomcat.memory.gc.valid	The garbage collection process in G1 is considered valid even if the old GC JMX counter remains at 0 while old space is gradually reclaimed by the young collections.	long		gauge
apache_tomcat.memory.heap.committed.bytes	Committed heap memory usage.	double	byte	gauge
apache_tomcat.memory.heap.init.bytes	Initial heap memory usage.	double	byte	gauge
apache_tomcat.memory.heap.max.bytes	Max heap memory usage. When the value for the maximum memory size (in bytes) is set to -1 for heap memory configurations, it indicates that the user has not specified a predefined size for the memory allocation.	double	byte	gauge
apache_tomcat.memory.heap.used.bytes	Used heap memory usage.	double	byte	gauge
apache_tomcat.memory.non_heap.committed.bytes	Committed non-heap memory usage.	double	byte	gauge
apache_tomcat.memory.non_heap.init.bytes	Initial non-heap memory usage.	double	byte	gauge
apache_tomcat.memory.non_heap.max.bytes	Max non-heap memory usage. When the value for the maximum memory size (in bytes) is set to -1 for non-heap memory configurations, it indicates that the user has not specified a predefined size for the memory allocation.	double	byte	gauge
apache_tomcat.memory.non_heap.used.bytes	Used non-heap memory usage.	double	byte	gauge
apache_tomcat.memory.object_pending_finalization.count	Count of object pending finalization.	double		gauge
apache_tomcat.memory.verbose	When set to true, will cause the memory manager to print messages to the console whenever it performs certain memory-related operations.(1.0-true, 0.0-false).	boolean
cloud.account.id	The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.	keyword
cloud.availability_zone	Availability zone in which this host, resource, or service is located.	keyword
cloud.instance.id	Instance ID of the host machine.	keyword
cloud.provider	Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.	keyword
cloud.region	Region in which this host, resource, or service is located.	keyword
container.id	Unique container id.	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
host.name	Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name (FQDN), or a name specified by the user. The recommended value is the lowercase FQDN of the host.	keyword
service.address	Address where data about this service was collected from. This should be a URI, network address (ipv4:port or [ipv6]:port) or a resource path (sockets).	keyword
tags	List of keywords used to tag each event.	keyword

Request

This is the Request data stream. This data stream collects metrics related to request count, and amount of data received and sent.

An example event for request looks as following:

{
    "@timestamp": "2023-07-06T06:18:00.930Z",
    "agent": {
        "ephemeral_id": "e291bf4e-e4fc-42c4-bb98-8acddc2e7af1",
        "id": "c78eadae-edd0-4b88-ab24-f2fb84a98229",
        "name": "docker-fleet-agent",
        "type": "metricbeat",
        "version": "8.8.0"
    },
    "apache_tomcat": {
        "request": {
            "count": 2,
            "error": {
                "count": 0
            },
            "nio_connector": "http-nio-8080",
            "received": {
                "bytes": 0
            },
            "sent": {
                "bytes": 22430
            },
            "time": {
                "max": 942,
                "total": 942
            }
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.request",
        "namespace": "ep",
        "type": "metrics"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "c78eadae-edd0-4b88-ab24-f2fb84a98229",
        "snapshot": false,
        "version": "8.8.0"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.request",
        "duration": 266759936,
        "ingested": "2023-07-06T06:18:04Z",
        "kind": "metric",
        "module": "apache_tomcat",
        "type": [
            "info"
        ]
    },
    "host": {
        "architecture": "aarch64",
        "containerized": false,
        "hostname": "docker-fleet-agent",
        "id": "e8978f2086c14e13b7a0af9ed0011d19",
        "ip": [
            "172.27.0.7"
        ],
        "mac": [
            "02-42-AC-1B-00-07"
        ],
        "name": "docker-fleet-agent",
        "os": {
            "codename": "focal",
            "family": "debian",
            "kernel": "3.10.0-1160.90.1.el7.x86_64",
            "name": "Ubuntu",
            "platform": "ubuntu",
            "type": "linux",
            "version": "20.04.6 LTS (Focal Fossa)"
        }
    },
    "metricset": {
        "name": "collector",
        "period": 10000
    },
    "service": {
        "address": "http://elastic-package-service-apache_tomcat-1:9090/metrics",
        "type": "prometheus"
    },
    "tags": [
        "apache_tomcat-request"
    ]
}

Exported fields

Field	Description	Type	Unit	Metric Type
@timestamp	Event timestamp.	date
agent.id	Unique identifier of this agent (if one exists). Example: For Beats this would be beat.id.	keyword
apache_tomcat.request.count	Number of requests processed.	double		counter
apache_tomcat.request.error.count	Number of errors.	double		gauge
apache_tomcat.request.nio_connector	Name of NIO Connector.	keyword
apache_tomcat.request.received.bytes	Amount of data received, in bytes.	double	byte	counter
apache_tomcat.request.sent.bytes	Amount of data sent, in bytes.	double	byte	counter
apache_tomcat.request.time.max	Maximum time(ms) to process a request.	double	ms	counter
apache_tomcat.request.time.total	Total time(ms) to process the requests.	double	ms	counter
cloud.account.id	The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.	keyword
cloud.availability_zone	Availability zone in which this host, resource, or service is located.	keyword
cloud.instance.id	Instance ID of the host machine.	keyword
cloud.provider	Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.	keyword
cloud.region	Region in which this host, resource, or service is located.	keyword
container.id	Unique container id.	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
host.name	Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name (FQDN), or a name specified by the user. The recommended value is the lowercase FQDN of the host.	keyword
service.address	Address where data about this service was collected from. This should be a URI, network address (ipv4:port or [ipv6]:port) or a resource path (sockets).	keyword
tags	List of keywords used to tag each event.	keyword

Session

This is the session data stream. This data stream collects metrics related to created, active, expired and rejected sessions, alive and processing time for sessions.

An example event for session looks as following:

{
    "@timestamp": "2023-09-27T19:16:54.670Z",
    "agent": {
        "ephemeral_id": "e227fa37-0bd2-4d8f-9397-d2ebf1247710",
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "name": "docker-fleet-agent",
        "type": "metricbeat",
        "version": "8.10.1"
    },
    "apache_tomcat": {
        "session": {
            "active": {
                "allowed": {
                    "max": -1
                },
                "max": 0,
                "total": 0
            },
            "alive_time": {
                "avg": 0,
                "max": 0
            },
            "application_name": "/",
            "create": {
                "rate": 0,
                "total": 0
            },
            "duplicate_ids": {
                "count": 0
            },
            "expire": {
                "rate": 0,
                "total": 0
            },
            "persist_authentication": false,
            "process_expires_frequency": {
                "count": 6
            },
            "processing_time": 0,
            "rejected": {
                "count": 0
            }
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.session",
        "namespace": "ep",
        "type": "metrics"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "snapshot": false,
        "version": "8.10.1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.session",
        "duration": 146910709,
        "ingested": "2023-09-27T19:16:57Z",
        "kind": "metric",
        "module": "apache_tomcat",
        "type": [
            "info"
        ]
    },
    "host": {
        "architecture": "aarch64",
        "containerized": false,
        "hostname": "docker-fleet-agent",
        "id": "ddbe644fa129402e9d5cf6452db1422d",
        "ip": [
            "172.31.0.7"
        ],
        "mac": [
            "02-42-AC-1F-00-07"
        ],
        "name": "docker-fleet-agent",
        "os": {
            "codename": "focal",
            "family": "debian",
            "kernel": "5.15.49-linuxkit",
            "name": "Ubuntu",
            "platform": "ubuntu",
            "type": "linux",
            "version": "20.04.6 LTS (Focal Fossa)"
        }
    },
    "metricset": {
        "name": "collector",
        "period": 10000
    },
    "service": {
        "address": "http://elastic-package-service-apache_tomcat-1:9090/metrics",
        "type": "prometheus"
    },
    "tags": "apache_tomcat-session"
}

Exported fields

Field	Description	Type	Unit	Metric Type
@timestamp	Event timestamp.	date
agent.id	Unique identifier of this agent (if one exists). Example: For Beats this would be beat.id.	keyword
apache_tomcat.session.active.allowed.max	The maximum number of active sessions allowed, or -1 for no limit.	double		gauge
apache_tomcat.session.active.max	Maximum number of active sessions so far.	double		counter
apache_tomcat.session.active.total	Number of active sessions at this moment.	double		gauge
apache_tomcat.session.alive_time.avg	Average time an expired session had been alive.	double		gauge
apache_tomcat.session.alive_time.max	Longest time an expired session had been alive.	double		counter
apache_tomcat.session.application_name	Name of the Apache Tomcat application.	keyword
apache_tomcat.session.create.rate	Session creation rate in sessions per minute.	double		gauge
apache_tomcat.session.create.total	Total number of sessions created by the manager.	double		counter
apache_tomcat.session.duplicate_ids.count	Number of duplicated session ids generated.	double		gauge
apache_tomcat.session.expire.rate	Session expiration rate in sessions per minute.	double		gauge
apache_tomcat.session.expire.total	Number of sessions that expired (doesn't include explicit invalidations).	double		gauge
apache_tomcat.session.persist_authentication	Indicates whether sessions shall persist authentication information when being persisted (e.g. across application restarts).	boolean
apache_tomcat.session.process_expires_frequency.count	The frequency of the manager checks (expiration and passivation).	double		gauge
apache_tomcat.session.processing_time	Time spent doing housekeeping and expiration.	double	ms	gauge
apache_tomcat.session.rejected.count	Number of sessions we rejected due to maxActive being reached.	double		gauge
cloud.account.id	The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.	keyword
cloud.availability_zone	Availability zone in which this host, resource, or service is located.	keyword
cloud.instance.id	Instance ID of the host machine.	keyword
cloud.provider	Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.	keyword
cloud.region	Region in which this host, resource, or service is located.	keyword
container.id	Unique container id.	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
host.name	Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name (FQDN), or a name specified by the user. The recommended value is the lowercase FQDN of the host.	keyword
service.address	Address where data about this service was collected from. This should be a URI, network address (ipv4:port or [ipv6]:port) or a resource path (sockets).	keyword
tags	List of keywords used to tag each event.	keyword

Thread Pool

This is the thread pool data stream. This data stream collects metrics related to the total, active, current, daemon, busy and peak threads, CPU time and processing termination time of the threads.

An example event for thread_pool looks as following:

{
    "@timestamp": "2023-09-27T19:18:14.080Z",
    "agent": {
        "ephemeral_id": "9e30f9c3-c9e5-4366-b899-29ee8f99bd67",
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "name": "docker-fleet-agent",
        "type": "metricbeat",
        "version": "8.10.1"
    },
    "apache_tomcat": {
        "thread_pool": {
            "contention": {
                "monitoring_enabled": false
            },
            "thread": {
                "active": {
                    "count": 26
                },
                "allocated_memory": {
                    "enabled": true,
                    "supported": true
                },
                "current": {
                    "allocated": {
                        "bytes": 3155872
                    },
                    "cpu": {
                        "time": {
                            "enabled": true,
                            "ms": 34786168
                        }
                    },
                    "user": {
                        "time": {
                            "ms": 30000000
                        }
                    }
                },
                "daemon": {
                    "count": 23
                },
                "peak": {
                    "count": 26
                },
                "supported": {
                    "contention_monitoring": true,
                    "cpu": {
                        "current": {
                            "time": true
                        }
                    },
                    "usage": {
                        "object_monitor": true,
                        "synchronizer": true
                    }
                },
                "total": 27
            }
        }
    },
    "data_stream": {
        "dataset": "apache_tomcat.thread_pool",
        "namespace": "ep",
        "type": "metrics"
    },
    "ecs": {
        "version": "8.7.0"
    },
    "elastic_agent": {
        "id": "86a82f91-ff66-4d28-ab7c-eb9350f317ed",
        "snapshot": false,
        "version": "8.10.1"
    },
    "event": {
        "agent_id_status": "verified",
        "category": [
            "web"
        ],
        "dataset": "apache_tomcat.thread_pool",
        "duration": 167367708,
        "ingested": "2023-09-27T19:18:17Z",
        "kind": "metric",
        "module": "apache_tomcat",
        "type": [
            "info"
        ]
    },
    "host": {
        "architecture": "aarch64",
        "containerized": false,
        "hostname": "docker-fleet-agent",
        "id": "ddbe644fa129402e9d5cf6452db1422d",
        "ip": [
            "172.31.0.7"
        ],
        "mac": [
            "02-42-AC-1F-00-07"
        ],
        "name": "docker-fleet-agent",
        "os": {
            "codename": "focal",
            "family": "debian",
            "kernel": "5.15.49-linuxkit",
            "name": "Ubuntu",
            "platform": "ubuntu",
            "type": "linux",
            "version": "20.04.6 LTS (Focal Fossa)"
        }
    },
    "metricset": {
        "name": "collector",
        "period": 10000
    },
    "service": {
        "address": "http://elastic-package-service-apache_tomcat-1:9090/metrics",
        "type": "prometheus"
    },
    "tags": "apache_tomcat-thread_pool"
}

Exported fields

Field	Description	Type	Unit	Metric Type
@timestamp	Event timestamp.	date
agent.id	Unique identifier of this agent (if one exists). Example: For Beats this would be beat.id.	keyword
apache_tomcat.thread_pool.connection.count	Count of all connections.	double		counter
apache_tomcat.thread_pool.connection.linger	The number of seconds during which the sockets used by this connector will linger when they are closed.	double	s	gauge
apache_tomcat.thread_pool.connection.max	The total number of concurrent connections that the server will accept and process.	double		gauge
apache_tomcat.thread_pool.connection.timeout	Thread connection timeout.	double		counter
apache_tomcat.thread_pool.contention.monitoring_enabled	This is used to determine if a Java virtual machine enables thread contention monitoring.	boolean
apache_tomcat.thread_pool.executor_termination.timeout.ms	The time that the private internal executor will wait for request processing threads to terminate before continuing with the process of stopping the connector. If not set, the default is 5000 (5 seconds).	double	ms	gauge
apache_tomcat.thread_pool.initiated_connector.state	State of bound when the connector is initiated.	boolean
apache_tomcat.thread_pool.keep_alive.count	Total keep alive on the ThreadPool.	double		gauge
apache_tomcat.thread_pool.keep_alive.max_requests	Maximum number of request keep alive in ThreadPool.	double		gauge
apache_tomcat.thread_pool.keep_alive.timeout	Keep alive timeout on the ThreadPool.	double		gauge
apache_tomcat.thread_pool.nio_connector	Name of NIO Connector.	keyword
apache_tomcat.thread_pool.ssl_enabled	SSL enable status.	boolean
apache_tomcat.thread_pool.tcp_no_delay	Status of tcp no delay option used to improves performance under most circumstances.	boolean
apache_tomcat.thread_pool.thread.accept.count	Count of all threads accepted.	double		counter
apache_tomcat.thread_pool.thread.active.count	Current active threads at JVM level (from java.lang:type=Threading).	double		gauge
apache_tomcat.thread_pool.thread.allocated_memory.enabled	Allocated memory enabled in thread.	boolean
apache_tomcat.thread_pool.thread.allocated_memory.supported	Allocated memory supported in thread.	boolean
apache_tomcat.thread_pool.thread.current.allocated.bytes	Allocated bytes in current thread.	double	byte	counter
apache_tomcat.thread_pool.thread.current.busy	Current busy threads from the ThreadPool.	double		gauge
apache_tomcat.thread_pool.thread.current.count	Current number of threads, taken from the ThreadPool.	double		gauge
apache_tomcat.thread_pool.thread.current.cpu.time.enabled	CPU time for the current thread.	boolean
apache_tomcat.thread_pool.thread.current.cpu.time.ms	CPU time in milliseconds.	double	ms	gauge
apache_tomcat.thread_pool.thread.current.user.time.ms	User time in milliseconds.	double	ms	gauge
apache_tomcat.thread_pool.thread.daemon.count	Daemon count for the current thread.	double		gauge
apache_tomcat.thread_pool.thread.daemon.status	The status which states whether the thread is daemon or not.	boolean
apache_tomcat.thread_pool.thread.paused	Pause state of Thread.	boolean
apache_tomcat.thread_pool.thread.peak.count	Peak number of threads at JVM level (from java.lang:type=Threading).	double		gauge
apache_tomcat.thread_pool.thread.port.default	Default port of thread in Apache Tomcat.	long		gauge
apache_tomcat.thread_pool.thread.port.offset	The offset to apply to port of thread.	long		gauge
apache_tomcat.thread_pool.thread.port.value	Port of thread.	long		gauge
apache_tomcat.thread_pool.thread.port.with_offset	Port of thread with offset.	long		gauge
apache_tomcat.thread_pool.thread.priority.acceptor	The priority of the acceptor thread.	double		gauge
apache_tomcat.thread_pool.thread.priority.count	Priority of thread.	double		gauge
apache_tomcat.thread_pool.thread.priority.poller	The priority of the poller threads.	double		gauge
apache_tomcat.thread_pool.thread.requests.max	Max threads from the ThreadPool, to be created by the connector and made available for requests.	double		counter
apache_tomcat.thread_pool.thread.running.min	The minimum number of threads always kept running.	double		gauge
apache_tomcat.thread_pool.thread.running.value	The status which states whether the thread is running or not.	boolean
apache_tomcat.thread_pool.thread.selector.timeout	Selector thread's timeout.	double		gauge
apache_tomcat.thread_pool.thread.sni_parse_limit	SNI parsing limit of thread.	double		gauge
apache_tomcat.thread_pool.thread.supported.contention_monitoring	This is used to determine if a Java virtual machine supports thread contention monitoring.	boolean
apache_tomcat.thread_pool.thread.supported.cpu.current.time	CPU time that the current thread has executed in user mode is supported or not.	boolean
apache_tomcat.thread_pool.thread.supported.usage.object_monitor	Support of object monitor usage of thread.	boolean
apache_tomcat.thread_pool.thread.supported.usage.synchronizer	Support of synchronizer usage.	boolean
apache_tomcat.thread_pool.thread.total	Total threads at the JVM level (from java.lang:type=Threading).	double		gauge
apache_tomcat.thread_pool.use_inherited_channel	Returns the channel inherited from the entity that created this Java virtual machine.	boolean
apache_tomcat.thread_pool.use_send_file	Use of sendfile will disable any compression that Tomcat may otherwise have performed on the response.	boolean
cloud.account.id	The cloud account or organization id used to identify different entities in a multi-tenant environment. Examples: AWS account id, Google Cloud ORG Id, or other unique identifier.	keyword
cloud.availability_zone	Availability zone in which this host, resource, or service is located.	keyword
cloud.instance.id	Instance ID of the host machine.	keyword
cloud.provider	Name of the cloud provider. Example values are aws, azure, gcp, or digitalocean.	keyword
cloud.region	Region in which this host, resource, or service is located.	keyword
container.id	Unique container id.	keyword
data_stream.dataset	Data stream dataset.	constant_keyword
data_stream.namespace	Data stream namespace.	constant_keyword
data_stream.type	Data stream type.	constant_keyword
ecs.version	ECS version this event conforms to. `ecs.version` is a required field and must exist in all events. When querying across multiple indices -- which may conform to slightly different ECS versions -- this field lets integrations adjust to the schema version of the events.	keyword
error.message	Error message.	match_only_text
event.category	This is one of four ECS Categorization Fields, and indicates the second level in the ECS category hierarchy. `event.category` represents the "big buckets" of ECS categories. For example, filtering on `event.category:process` yields all events relating to process activity. This field is closely related to `event.type`, which is used as a subcategory. This field is an array. This will allow proper categorization of some events that fall in multiple categories.	keyword
event.kind	This is one of four ECS Categorization Fields, and indicates the highest level in the ECS category hierarchy. `event.kind` gives high-level information about what type of information the event contains, without being specific to the contents of the event. For example, values of this field distinguish alert events from metric events. The value of this field can be used to inform how these kinds of events should be handled. They may warrant different retention, different access control, it may also help understand whether the data coming in at a regular interval or not.	keyword
event.module	Name of the module this data is coming from. If your monitoring agent supports the concept of modules or plugins to process events of a given source (e.g. Apache logs), `event.module` should contain the name of this module.	keyword
event.type	This is one of four ECS Categorization Fields, and indicates the third level in the ECS category hierarchy. `event.type` represents a categorization "sub-bucket" that, when used along with the `event.category` field values, enables filtering events down to a level appropriate for single visualization. This field is an array. This will allow proper categorization of some events that fall in multiple event types.	keyword
host.name	Name of the host. It can contain what hostname returns on Unix systems, the fully qualified domain name (FQDN), or a name specified by the user. The recommended value is the lowercase FQDN of the host.	keyword
service.address	Address where data about this service was collected from. This should be a URI, network address (ipv4:port or [ipv6]:port) or a resource path (sockets).	keyword
service.type	The type of the service data is collected from. The type can be used to group and correlate logs and metrics from one service type. Example: If logs or metrics are collected from Elasticsearch, `service.type` would be `elasticsearch`.	keyword
tags	List of keywords used to tag each event.	keyword

Changelog

Version	Details	Kibana version(s)
1.3.0	Enhancement View pull request Enable 'secret' for the sensitive fields, supported from 8.12.	8.8.0 or higher
1.2.0	Enhancement View pull request Improve apache_tomcat.access pipeline performance	8.8.0 or higher
1.1.1	Enhancement View pull request Improve wording on milliseconds in apache_tomcat time field	8.8.0 or higher
1.1.0	Enhancement View pull request Improve apache_tomcat.access pipeline performance	8.8.0 or higher
1.0.0	Enhancement View pull request Make Apache Tomcat GA.	8.8.0 or higher
0.17.2	Enhancement View pull request Update description in README.md.	—
0.17.1	Bug fix View pull request Fix pipeline test and rename header_forwarder field to client.ip.	—
0.17.0	Enhancement View pull request Make parsers configurable for catalina and localhost logs	—
0.16.0	Enhancement View pull request Support of additional log format in access logs	—
0.15.0	Enhancement View pull request Add support of TSDB enablement to request and cache data streams.	—
0.14.0	Enhancement View pull request Update the package format_version to 3.0.0.	—
0.13.0	Enhancement View pull request Adapt fields for changes in file system info	—
0.12.3	Bug fix View pull request Add null check and ignore_missing check to the rename processor	—
0.12.2	Bug fix View pull request Remove forwarded tag from metrics data streams.	—
0.12.1	Enhancement View pull request Add supported log formats for Catalina and Localhost logs in README.	—
0.12.0	Enhancement View pull request Add overview dashboards for logs and metrics.	—
0.11.0	Enhancement View pull request Apache Tomcat integration package with "connection_pool" data stream.	—
0.10.0	Enhancement View pull request Apache Tomcat integration package with "thread_pool" data stream.	—
0.9.0	Enhancement View pull request Apache Tomcat integration package with "memory" data stream.	—
0.8.0	Enhancement View pull request Update the processor description link.	—
0.7.0	Enhancement View pull request Apache Tomcat integration package with "session" data stream.	—
0.6.0	Enhancement View pull request Rename ownership from obs-service-integrations to obs-infraobs-integrations	—
0.5.1	Bug fix View pull request Remove Localhost dashboard and update saved searches.	—
0.5.0	Enhancement View pull request Apache Tomcat integration package with "access" data stream.	—
0.4.0	Enhancement View pull request Apache Tomcat integration package with "localhost" data stream.	—
0.3.0	Enhancement View pull request Apache Tomcat integration package with "request" data stream.	—
0.2.0	Enhancement View pull request Apache Tomcat integration package with "cache" data stream.	—
0.1.0	Enhancement View pull request Apache Tomcat integration package with "catalina" data stream.	—

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Overview

Data streams

Compatibility

Prerequisites

Setup

Steps to setup Prometheus

Steps to configure Filestream input for Access logs

Supported log formats for Catalina and Localhost logs:

Configuration

Apache Tomcat Hostname

Validation

Troubleshooting

Logs reference

Access

Catalina

Localhost

Metrics reference

Cache

Connection Pool

Memory

Request

Session

Thread Pool

Changelog