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https://issues.apache.org/jira/browse/CASSANDRA-6211?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13802843#comment-13802843
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Jonathan Ellis commented on CASSANDRA-6211:
-------------------------------------------
+1
> NPE in system.log
> -----------------
>
> Key: CASSANDRA-6211
> URL: https://issues.apache.org/jira/browse/CASSANDRA-6211
> Project: Cassandra
> Issue Type: Bug
> Components: Core
> Environment: java version "1.7.0_25"
> Java(TM) SE Runtime Environment (build 1.7.0_25-b15)
> Java HotSpot(TM) 64-Bit Server VM (build 23.25-b01, mixed mode)
> Linux hostname 2.6.32-279.el6.x86_64 #1 SMP Thu Jun 21 15:00:18 EDT 2012
> x86_64 x86_64 x86_64 GNU/Linux
> Reporter: Mikhail Mazursky
> Assignee: Sylvain Lebresne
> Labels: npe, nullpointerexception
> Fix For: 2.0.3
>
> Attachments: 6211.txt
>
>
> I wrote a stresstest to test C* and my code that uses CAS heavily. I see
> strange exception messages in logs:
> {noformat}
> ERROR [MutationStage:320] 2013-10-17 13:59:10,710 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:320,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:328] 2013-10-17 13:59:10,718 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:328,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:327] 2013-10-17 13:59:10,732 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:327,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:325] 2013-10-17 13:59:10,750 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:325,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:326] 2013-10-17 13:59:10,762 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:326,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:330] 2013-10-17 13:59:10,768 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:330,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:331] 2013-10-17 13:59:10,775 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:331,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:334] 2013-10-17 13:59:10,789 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:334,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:329] 2013-10-17 13:59:10,803 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:329,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:335] 2013-10-17 13:59:10,812 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:335,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:333] 2013-10-17 13:59:10,826 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:333,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:332] 2013-10-17 13:59:10,834 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:332,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:337] 2013-10-17 13:59:10,842 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:337,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:336] 2013-10-17 13:59:10,859 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:336,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:338] 2013-10-17 13:59:10,870 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:338,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:339] 2013-10-17 13:59:10,884 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:339,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:341] 2013-10-17 13:59:10,894 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:341,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:340] 2013-10-17 13:59:10,910 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:340,5,main]
> java.lang.NullPointerException
> ERROR [MutationStage:344] 2013-10-17 13:59:10,920 CassandraDaemon.java (line
> 185) Exception in thread Thread[MutationStage:344,5,main]
> java.lang.NullPointerException
> {noformat}
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