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From "Jingcheng Du (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HBASE-13855) NPE in PartitionedMobCompactor
Date Mon, 08 Jun 2015 06:43:00 GMT
Jingcheng Du created HBASE-13855:

             Summary: NPE in PartitionedMobCompactor
                 Key: HBASE-13855
                 URL: https://issues.apache.org/jira/browse/HBASE-13855
             Project: HBase
          Issue Type: Sub-task
          Components: mob
    Affects Versions: hbase-11339
            Reporter: Jingcheng Du
            Assignee: Jingcheng Du
             Fix For: hbase-11339

In PartitionedMobCompactor, mob files are split into partitions, the compactions of partitions
run in parallel.
The partitions share  the same set of del files. There might be race conditions when open
readers of del store files in each partition which can cause NPE.
In this patch, we will pre-create the reader for each del store file to avoid this issue.

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