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From "Sam Tunnicliffe (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-11967) Export metrics for prometheus in its native format
Date Fri, 24 Jun 2016 16:04:16 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-11967?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15348481#comment-15348481
] 

Sam Tunnicliffe commented on CASSANDRA-11967:
---------------------------------------------

+1 the C* changes look fine to me. 

I should note though that when I dropped in the necessary jars to smoke test with the Prometheus
exporter, I'm seeing an awful lot of
{noformat}
INFO  [main] 2016-06-24 16:56:27,809 CassandraDaemon.java:375 - Trying to initialize metrics-exporter
org.caffinitas.prometheusmetrics.PrometheusMetricsInitializer
INFO  [main] 2016-06-24 16:56:27,825 PrometheusMetricsExporter.java:82 - Setting up Prometheus
metrics exporter on 127.0.0.1 port 8088 and SSL disabled
INFO  [main] 2016-06-24 16:56:27,829 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.BloomFilterFalsePositives.system.built_views'
INFO  [main] 2016-06-24 16:56:27,830 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.BytesFlushed.system.peers'
INFO  [main] 2016-06-24 16:56:27,830 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.RowCacheHit.system.available_ranges'
INFO  [main] 2016-06-24 16:56:27,830 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.MeanPartitionSize.system.views_builds_in_progress'
INFO  [main] 2016-06-24 16:56:27,831 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.CoordinatorReadLatency.system.local'
INFO  [main] 2016-06-24 16:56:27,831 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.EstimatedPartitionSizeHistogram.system.batches'
INFO  [main] 2016-06-24 16:56:27,831 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.MemtableOffHeapSize.system.views_builds_in_progress'
INFO  [main] 2016-06-24 16:56:27,831 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.SSTablesPerReadHistogram.system_traces.sessions'
INFO  [main] 2016-06-24 16:56:27,831 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.keyspace.LiveScannedHistogram.system'
INFO  [main] 2016-06-24 16:56:27,831 PrometheusMetricsExporter.java:450 - No matching metric
mapping for 'org.apache.cassandra.metrics.Table.CasPrepareLatency.system.schema_aggregates'
{noformat}


> Export metrics for prometheus in its native format
> --------------------------------------------------
>
>                 Key: CASSANDRA-11967
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11967
>             Project: Cassandra
>          Issue Type: Improvement
>            Reporter: Robert Stupp
>            Assignee: Robert Stupp
>            Priority: Minor
>             Fix For: 3.x
>
>
> https://github.com/snazy/prometheus-metrics-exporter allows to export codahale metrics
for prometheus.io. In order to integrate this, a minor change to C* is necessary to load the
library.
> This eliminates the need to use the additional graphite-exporter tool and therefore also
allows prometheus to track the up/down status of C*.
> (Will provide the patch soon)



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