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https://issues.apache.org/jira/browse/FLUME-2897?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15215006#comment-15215006
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Mike Percy commented on FLUME-2897:
-----------------------------------
The reason this patch is correct is because it would be incorrect to call
txn.close() in the finally block if txn is null. Same goes for what we're doing
in the catch block: txn.rollback(). This is the correct idiom.
> AsyncHBase sink NPE when Channel.getTransaction() fails
> -------------------------------------------------------
>
> Key: FLUME-2897
> URL: https://issues.apache.org/jira/browse/FLUME-2897
> Project: Flume
> Issue Type: Bug
> Components: Sinks+Sources
> Affects Versions: v1.6.0
> Reporter: Mike Percy
> Assignee: Mike Percy
> Attachments: FLUME-2897-1.patch
>
>
> There is a possibility for a NPE in the AsyncHBaseSink when a channel
> getTransaction() call fails. This is possible when the FileChannel is out of
> disk space.
> Patch forthcoming.
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