Duo Zhang created HBASE-27321:
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Summary: The ReplicationLogCleaner is not thread safe but can be
called from different thread at the same time
Key: HBASE-27321
URL: https://issues.apache.org/jira/browse/HBASE-27321
Project: HBase
Issue Type: Bug
Reporter: Duo Zhang
In preClean method we will update the class fields and then use them in the
getDeletableFiles method. This implies that we will have only one cleaner run
at the same time.
But actually, in MasterRpcServices.runCleanerChore, we will call execute the
HFileCleaner and LogCleaner directly, not in the cleanerChore thread.
This could cause data loss for replication, which is a very serious problem.
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