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From "Stefania (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-11823) Creating a table leads to a race with GraphiteReporter
Date Wed, 18 May 2016 06:14:12 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-11823?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15288495#comment-15288495
] 

Stefania commented on CASSANDRA-11823:
--------------------------------------

Was this happening in 3.0.5 as well or is it a regression of 3.0.6?

> Creating a table leads to a race with GraphiteReporter
> ------------------------------------------------------
>
>                 Key: CASSANDRA-11823
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-11823
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Stefano Ortolani
>            Priority: Minor
>
> Happened only on 3/4 nodes out of 13.
> {code:xml}
> INFO  [MigrationStage:1] 2016-05-18 00:34:11,566 ColumnFamilyStore.java:381 - Initializing
schema.table
> ERROR [metrics-graphite-reporter-1-thread-1] 2016-05-18 00:34:11,569 ScheduledReporter.java:119
- RuntimeException thrown from GraphiteReporter#report. Exception was suppressed.
> java.util.ConcurrentModificationException: null
> 	at java.util.HashMap$HashIterator.nextNode(HashMap.java:1429) ~[na:1.8.0_91]
> 	at java.util.HashMap$KeyIterator.next(HashMap.java:1453) ~[na:1.8.0_91]
> 	at org.apache.cassandra.metrics.TableMetrics$33.getValue(TableMetrics.java:690) ~[apache-cassandra-3.0.6.jar:3.0.6]
> 	at org.apache.cassandra.metrics.TableMetrics$33.getValue(TableMetrics.java:686) ~[apache-cassandra-3.0.6.jar:3.0.6]
> 	at com.codahale.metrics.graphite.GraphiteReporter.reportGauge(GraphiteReporter.java:281)
~[metrics-graphite-3.1.0.jar:3.1.0]
> 	at com.codahale.metrics.graphite.GraphiteReporter.report(GraphiteReporter.java:158)
~[metrics-graphite-3.1.0.jar:3.1.0]
> 	at com.codahale.metrics.ScheduledReporter.report(ScheduledReporter.java:162) ~[metrics-core-3.1.0.jar:3.1.0]
> 	at com.codahale.metrics.ScheduledReporter$1.run(ScheduledReporter.java:117) ~[metrics-core-3.1.0.jar:3.1.0]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) [na:1.8.0_91]
> 	at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308) [na:1.8.0_91]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
[na:1.8.0_91]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
[na:1.8.0_91]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) [na:1.8.0_91]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) [na:1.8.0_91]
> 	at java.lang.Thread.run(Thread.java:745) [na:1.8.0_91]
> {code}



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