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From "David Medinets (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (ACCUMULO-1877) ClassNotFoundException: DefaultKeySizeConstraint
Date Mon, 11 Nov 2013 14:34:17 GMT

    [ https://issues.apache.org/jira/browse/ACCUMULO-1877?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13818993#comment-13818993
] 

David Medinets commented on ACCUMULO-1877:
------------------------------------------

If I run my client program from one of the slaves then I do not see an issue with DefaultKeySizeConstraint.
I will to assume there was something wrong with my development environment if nobody else
has seen this issue.

> ClassNotFoundException: DefaultKeySizeConstraint
> ------------------------------------------------
>
>                 Key: ACCUMULO-1877
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-1877
>             Project: Accumulo
>          Issue Type: Bug
>    Affects Versions: 1.5.0
>         Environment: Ubuntu 12.04, Hadoop 1.2.1, Zookeeper 3.4.3
>            Reporter: David Medinets
>            Priority: Minor
>
> I created an accumulo cluster using https://github.com/medined/Accumulo_1_5_0_By_Vagrant
on VirtualBox. Then created a client program using https://github.com/medined/user_and_friends.
This simple program threw an exception:
> Exception in thread "main" org.apache.accumulo.core.client.MutationsRejectedException:
# constraint violations : 1  security codes: []  # server errors 0 # exceptions 0
> 	at org.apache.accumulo.core.client.impl.TabletServerBatchWriter.checkForFailures(TabletServerBatchWriter.java:536)
> 	at org.apache.accumulo.core.client.impl.TabletServerBatchWriter.close(TabletServerBatchWriter.java:353)
> 	at org.apache.accumulo.core.client.impl.BatchWriterImpl.close(BatchWriterImpl.java:52)
> 	at com.affy.UserAndFriendsDriver.main(UserAndFriendsDriver.java:67)
> On the server side, I see this exception in the Accumulo monitor:
> Failed to load constraints 2 java.lang.ClassNotFoundException: org.apache.accumulo.core.constraints.DefaultKeySizeConstraint
> 	java.lang.ClassNotFoundException: org.apache.accumulo.core.constraints.DefaultKeySizeConstraint
> 		at org.apache.commons.vfs2.impl.VFSClassLoader.findClass(VFSClassLoader.java:175)
> 		at java.lang.ClassLoader.loadClass(ClassLoader.java:321)
> 		at java.lang.ClassLoader.loadClass(ClassLoader.java:266)
> 		at org.apache.accumulo.server.constraints.ConstraintChecker.<init>(ConstraintChecker.java:63)
> 		at org.apache.accumulo.server.tabletserver.Tablet.checkConstraints(Tablet.java:2522)
> 		at org.apache.accumulo.server.tabletserver.TabletServer$6.run(TabletServer.java:3116)
> 		at org.apache.accumulo.server.util.time.SimpleTimer$LoggingTimerTask.run(SimpleTimer.java:42)
> 		at java.util.TimerThread.mainLoop(Timer.java:534)
> 		at java.util.TimerThread.run(Timer.java:484)
> When I delete the log message, it reappears even though I do not re-run the client program.
> I don't see any reference to DefaultKeySizeConstraint in the Accumulo 1.5.0 source code
that I have.
> Any ideas why this exception is thrown?



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