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https://issues.apache.org/jira/browse/CASSANDRA-5844?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13732112#comment-13732112
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Daniel Meyer commented on CASSANDRA-5844:
-----------------------------------------
Changed version locally to 1.1.12 and in 10 runs of the test I get 5 passes, 4
NPEs as described in this bug and 1 instance where the test failed due to many
NoClassDefFoundError. The signature of this error was exactly the same as the
dtestbot failure that is posted in the second comment of this ticket.
Attempting to characterize the occurrence of this second error and will file a
separate ticket.
> NullPointer exception running upgrade_through_versions_test dtest
> -----------------------------------------------------------------
>
> Key: CASSANDRA-5844
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5844
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.2.9
> 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)
> Reporter: Daniel Meyer
> Attachments: node1.log, node2.log, node3.log
>
>
> This error is observed while running upgrade_through_versions_test.
> Specifically the error occurs going from 1.2 -> trunk:
> ERROR: Only upgrade part of the cluster, so we have mixed versions when
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File "/Users/danielmeyer/Sources/riptano/cassandra-dtest/dtest.py", line
> 145, in tearDown
> raise AssertionError('Unexpected error in %s node log: %s' % (node.name,
> errors))
> AssertionError: Unexpected error in node3 node log: ['ERROR
> [MigrationStage:1] 2013-08-02 15:12:13,647 CassandraDaemon.java (line 192)
> Exception in thread Thread[MigrationStage:1,5,main]\n']
> The exception found in logs (node3) is as follows:
> java.lang.NullPointerException
> at org.apache.cassandra.db.DefsTable.addColumnFamily(DefsTable.java:510)
> at
> org.apache.cassandra.db.DefsTable.mergeColumnFamilies(DefsTable.java:444)
> at org.apache.cassandra.db.DefsTable.mergeSchema(DefsTable.java:354)
> at
> org.apache.cassandra.db.DefinitionsUpdateVerbHandler$1.runMayThrow(DefinitionsUpdateVerbHandler.java:55)
> at org.apache.cassandra.utils.WrappedRunnable.run(WrappedRunnable.java:28)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:471)
> at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:334)
> at java.util.concurrent.FutureTask.run(FutureTask.java:166)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
> at java.lang.Thread.run(Thread.java:724)
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