42 lines
1.5 KiB
Markdown
42 lines
1.5 KiB
Markdown
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# Telegraf plugin: Cassandra
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#### Plugin arguments:
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- **context** string: Context root used for jolokia url
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- **servers** []Server: List of servers
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+ **host** string: Server's ip address or hostname
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+ **port** string: Server's listening port
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+ **username** string: Server's username for authentication (optional)
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+ **password** string: Server's password for authentication (optional)
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- **metrics** []Metric
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+ **jmx** string: Jmx path that identifies mbeans attributes
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+ **pass** []string: Attributes to retain when collecting values (TODO)
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+ **drop** []string: Attributes to drop when collecting values (TODO)
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#### Description
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The Cassandra plugin collects Cassandra/JVM metrics exposed as MBean's attributes through jolokia REST endpoint. All metrics are collected for each server configured.
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See: https://jolokia.org/
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# Measurements:
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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.
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Given a configuration like:
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```ini
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[cassandra]
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[[cassandra.servers]]
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host = "127.0.0.1"
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port = "878"
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[[cassandra.metrics]]
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jmx = "/java.lang:type=Memory/HeapMemoryUsage"
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```
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The collected metrics will be:
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```
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javaMemory,host=myHost,mname=HeapMemoryUsage HeapMemoryUsage_committed=1040187392,HeapMemoryUsage_init=1050673152,HeapMemoryUsage_max=1040187392,HeapMemoryUsage_used=368155000 1459551767230567084
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```
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