Jingcheng Du created HBASE-13855:
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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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