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riemann tool for cassandra
Java
branch: master

Merge pull request #1 from radumanolescu/master

Add ability to collect metrics about dropped messages
latest commit 4d7a606c76
@marce808 marce808 authored

README.md

riemann-cassandra : tool for emitting Cassandra metrics to Riemann

Background

Riemann along with Graphite make it possible to easily monitor any service.

This tool lets you monitor Cassandra by emitting metrics in JMX as Riemann events You should run one of these per Cassandra node.

Usage

    java -jar riemann-cassandra-0.0.1.jar  
         -riemann_host <arg>     #defaults to localhost
         -riemann_port <arg>     #defaults to 5555
         -cassandra_host <arg>   #defaults to localhost
         -jmx_port <arg>         #defaults to 7199
         -jmx_username <arg>     #defaults to null
         -jmx_password <arg>     #defaults to null
         -interval_seconds <arg> #defaults to 5

Metrics tracked

  • General
    • cassandra.heap_committed_mb
    • cassandra.heap_used_mb
    • cassandra.exception_count
    • cassandra.recent_timeouts
    • cassandra.pending_compactions
    • cassandra.total_sstable_mb
  • Per ThreadPool
    • cassandra.tp.active
    • cassandra.tp.blocked
    • cassandra.tp.pending
  • Per Keyspace/ColumnFamily
    • cassandra.db.keys
    • cassandra.db.mean_row_size
    • cassandra.db.min_row_size
    • cassandra.db.max_row_size
    • cassandra.db.sstable_count
    • cassandra.db.total_sstable_mb
    • cassandra.db.total_bloom_mb
    • cassamdra.db.bloom_fp_rate
    • cassandra.db.memtable_size_mb
    • cassandra.db.read_latency
    • cassandra.db.write_latency
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