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telegraf/plugins/inputs/cassandra/README.md

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Telegraf plugin: Cassandra

Plugin arguments:

  • context string: Context root used for jolokia url
  • servers []string: List of servers with the format "user:passwd@:port"
  • metrics []string: List of Jmx paths that identify mbeans attributes

Description

The Cassandra plugin collects Cassandra/JVM metrics exposed as MBean's attributes through jolokia REST endpoint. All metrics are collected for each server configured.

See: https://jolokia.org/

Measurements:

Cassandra plugin produces one or more measurements for each metric configured, adding Server's name as host tag. More than one measurement is generated when querying table metrics with a wildcard for the keyspace or table name.

Given a configuration like:

[inputs.cassandra]
  context = "/jolokia/read"
  servers = [":8778"]
  metrics = ["/java.lang:type=Memory/HeapMemoryUsage"]

The collected metrics will be:

javaMemory,host=myHost,mname=HeapMemoryUsage HeapMemoryUsage_committed=1040187392,HeapMemoryUsage_init=1050673152,HeapMemoryUsage_max=1040187392,HeapMemoryUsage_used=368155000 1459551767230567084