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From "Sylvain Lebresne (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (CASSANDRA-12143) NPE when trying to remove purgable tombstones from result
Date Thu, 07 Jul 2016 08:55:11 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-12143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Sylvain Lebresne updated CASSANDRA-12143:
-----------------------------------------
    Fix Version/s:     (was: 2.2.7)
                   2.2.x

> NPE when trying to remove purgable tombstones from result
> ---------------------------------------------------------
>
>                 Key: CASSANDRA-12143
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12143
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: mck
>            Assignee: mck
>             Fix For: 2.2.x
>
>         Attachments: 12143-2.2.txt
>
>
> A cluster running 2.2.6 started throwing NPEs.
> (500K exceptions on a node was seen.)
> {noformat}WARN  … AbstractLocalAwareExecutorService.java:169 - Uncaught exception on
thread Thread[SharedPool-Worker-5,5,main]: {}
> java.lang.NullPointerException: null{noformat}
> Bisecting this highlighted commit d3db33c008542c7044f3ed8c19f3a45679fcf52e as the culprit,
which was a fix for CASSANDRA-11427.
> This commit added a line to "remove purgable tombstones from result" but failed to null
check the {{data}} variable first. This variable comes from {{Row.cf}} which is permitted
to be null where the CFS has no data.



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