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https://issues.apache.org/jira/browse/CASSANDRA-5668?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13688581#comment-13688581
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Jonathan Ellis commented on CASSANDRA-5668:
-------------------------------------------
Are we actually creating multiple sessions?
> NPE in net.OutputTcpConnection when tracing is enabled
> ------------------------------------------------------
>
> Key: CASSANDRA-5668
> URL: https://issues.apache.org/jira/browse/CASSANDRA-5668
> Project: Cassandra
> Issue Type: Bug
> Affects Versions: 1.2.6, 2.0 beta 1
> Reporter: Ryan McGuire
> Attachments: 5668-assert-2.txt, 5668-assert.txt, 5668-logs.tar.gz,
> 5668_npe_ddl.cql, 5668_npe_insert.cql, system.log
>
>
> I get multiple NullPointerException when trying to trace INSERT statements.
> To reproduce:
> {code}
> $ ccm create -v git:trunk
> $ ccm populate -n 3
> $ ccm start
> $ ccm node1 cqlsh < 5668_npe_ddl.cql
> $ ccm node1 cqlsh < 5668_npe_insert.cql
> {code}
> And see many exceptions like this in the logs of node1:
> {code}
> ERROR [WRITE-/127.0.0.3] 2013-06-19 14:54:35,885 OutboundTcpConnection.java
> (line 197) error writing to /127.0.0.3
> java.lang.NullPointerException
> at
> org.apache.cassandra.net.OutboundTcpConnection.writeConnected(OutboundTcpConnection.java:182)
> at
> org.apache.cassandra.net.OutboundTcpConnection.run(OutboundTcpConnection.java:144)
> {code}
> This is similar to CASSANDRA-5658 and is the reason that npe_ddl and
> npe_insert are separate files.
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