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From "Michael Shuler (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-8070) OutOfMemoryError in OptionalTasks
Date Tue, 11 Nov 2014 18:34:34 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-8070?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14206773#comment-14206773
] 

Michael Shuler commented on CASSANDRA-8070:
-------------------------------------------

[~Andie78] you might glean some tuning hints from http://opensourceconnections.com/blog/2013/08/31/building-the-perfect-cassandra-test-environment/
- he set this up for 64MB test machines.

> OutOfMemoryError in OptionalTasks
> ---------------------------------
>
>                 Key: CASSANDRA-8070
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-8070
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>         Environment: Windows-7-32 bit, 3GB RAM, Java 1.7.0_67
>            Reporter: Andreas Schnitzerling
>         Attachments: system.log
>
>
> Since update of 2 of 12 nodes from 2.0.10 to 2.1-release Exception during operation.
> {panel:title=system.log}
> ERROR [OptionalTasks:1] 2014-10-02 09:26:42,821 CassandraDaemon.java:166 - Exception
in thread Thread[OptionalTasks:1,5,main]
> java.lang.OutOfMemoryError: Java heap space
> 	at com.yammer.metrics.stats.Snapshot.<init>(Snapshot.java:30) ~[metrics-core-2.2.0.jar:na]
> 	at com.yammer.metrics.stats.ExponentiallyDecayingSample.getSnapshot(ExponentiallyDecayingSample.java:131)
~[metrics-core-2.2.0.jar:na]
> 	at com.yammer.metrics.core.Histogram.getSnapshot(Histogram.java:180) ~[metrics-core-2.2.0.jar:na]
> 	at com.yammer.metrics.core.Timer.getSnapshot(Timer.java:183) ~[metrics-core-2.2.0.jar:na]
> 	at org.apache.cassandra.db.ColumnFamilyStore$2.run(ColumnFamilyStore.java:340) ~[apache-cassandra-2.1.0.jar:2.1.0]
> 	at org.apache.cassandra.concurrent.DebuggableScheduledThreadPoolExecutor$UncomplainingRunnable.run(DebuggableScheduledThreadPoolExecutor.java:75)
~[apache-cassandra-2.1.0.jar:2.1.0]
> 	at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source) [na:1.7.0_67]
> 	at java.util.concurrent.FutureTask.runAndReset(Unknown Source) [na:1.7.0_67]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown
Source) [na:1.7.0_67]
> 	at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown
Source) [na:1.7.0_67]
> 	at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source) [na:1.7.0_67]
> 	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source) [na:1.7.0_67]
> 	at java.lang.Thread.run(Unknown Source) [na:1.7.0_67]
> {panel}



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