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From "Ted Yu (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-11794) StripeStoreFlusher causes NullPointerException and Region down
Date Sat, 23 Aug 2014 01:39:12 GMT

    [ https://issues.apache.org/jira/browse/HBASE-11794?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14107792#comment-14107792
] 

Ted Yu commented on HBASE-11794:
--------------------------------

Ping [~apurtell] for 0.98 and [~enis] for 1.0

> StripeStoreFlusher causes NullPointerException and Region down
> --------------------------------------------------------------
>
>                 Key: HBASE-11794
>                 URL: https://issues.apache.org/jira/browse/HBASE-11794
>             Project: HBase
>          Issue Type: Bug
>          Components: Compaction
>    Affects Versions: 0.98.3, 0.98.4, 0.98.5
>            Reporter: jeongmin kim
>            Assignee: jeongmin kim
>            Priority: Critical
>         Attachments: HBASE_11794.patch
>
>
> StoreFlusher.flushSnapshot() mustn't return null value.
> But StripeStoreFlusher.flushSnapshot() does.
> It cause NullPointerException at org.apache.hadoop.hbase.regionserver.HStore.flushCache(HStore.java:802)
> and this makes regions dead after exhaustive retries and no recovery available from it.
> the code (StripeStoreFlusher:64) has to be changed 
> ===============
> from
>     List<Path> result = null 
> to
>      List<Path> result = new ArrayList<Path>();
>  ===============
> to return a empty list not null value.
>     



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