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Tomcat threading metricset

Stack Beta

Warning

This functionality is in beta and is subject to change. The design and code is less mature than official GA features and is being provided as-is with no warranties. Beta features are not subject to the support SLA of official GA features.

Threading Metricset retrieves the JMX key Catalina:name=*,type=ThreadPool and java.lang:type=Threading using Jolokia. It exposes the following metrics:

  • tomcat.threading.busy: Current busy threads from the ThreadPool
  • tomcat.threading.max: Max threads from the ThreadPool
  • tomcat.threading.current: Current number of threads, taken from the ThreadPool
  • tomcat.threading.keep_alive.total: Total keep alive on the ThreadPool
  • tomcat.threading.keep_alive.timeout.ms: Keep alive timeout on the ThreadPool
  • tomcat.threading.started.total: Current started threads at JVM level (from java.lang:type=Threading)
  • tomcat.threading.user.time.ms: User time in milliseconds (from java.lang:type=Threading)
  • tomcat.threading.cpu.time.ms: CPU time in milliseconds (from java.lang:type=Threading)
  • tomcat.threading.total: Total threads at the JVM level (from java.lang:type=Threading)
  • tomcat.threading.peak: Peak number of threads at JVM level (from java.lang:type=Threading)

This is a default metricset. If the host module is unconfigured, this metricset is enabled by default.

Fields

For a description of each field in the metricset, see the exported fields section.

Here is an example document generated by this metricset:

{
    "@timestamp": "2019-09-16T11:24:36.957Z",
    "@metadata": {
        "beat": "metricbeat",
        "type": "_doc",
        "version": "8.0.0"
    },
    "event": {
        "duration": 7677063,
        "dataset": "tomcat.threading",
        "module": "tomcat"
    },
    "metricset": {
        "name": "threading",
        "period": 10000
    },
    "service": {
        "type": "tomcat",
        "address": "localhost:8080"
    },
    "tomcat": {
        "threading": {
            "total": 35,
            "started": {
                "total": 35
            },
            "user": {
                "time": {
                    "ms": 6e+07
                }
            },
            "peak": 35,
            "cpu": {
                "time": {
                    "ms": 6.9719161e+07
                }
            }
        }
    },
    "ecs": {
        "version": "1.1.0"
    },
    "host": {
        "hostname": "mcastro",
        "architecture": "x86_64",
        "os": {
            "name": "Antergos Linux",
            "kernel": "5.0.13-arch1-1-ARCH",
            "platform": "antergos",
            "version": "",
            "family": ""
        },
        "id": "54f70115bae545cbac2b150f254472a0",
        "containerized": false,
        "name": "mcastro"
    },
    "agent": {
        "ephemeral_id": "a4cc9624-50c1-462c-b254-fa45896ebdfb",
        "hostname": "mcastro",
        "id": "7e36a073-1a32-4a94-b65b-4c7f971fb228",
        "version": "8.0.0",
        "type": "metricbeat"
    }
}