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Posted to dev@hbase.apache.org by "Allan Yang (JIRA)" <ji...@apache.org> on 2018/07/30 11:46:00 UTC

[jira] [Created] (HBASE-20976) SCP can be scheduled multiple times for the same RS

Allan Yang created HBASE-20976:
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             Summary: SCP can be scheduled multiple times for the same RS
                 Key: HBASE-20976
                 URL: https://issues.apache.org/jira/browse/HBASE-20976
             Project: HBase
          Issue Type: Sub-task
    Affects Versions: 2.0.1, 2.1.0
            Reporter: Allan Yang
            Assignee: Allan Yang


SCP can be scheduled multiple times for the same RS:
1. a RS crashed, a SCP was submitted for it
2. before this SCP finish, the Master crashed
3. The new master will scan the meta table and find some region is still open on a dead server
4. The new master submit a SCP for the dead server again
The two SCP for the same RS can even execute concurrently if without HBASE-20846…

Provided a test case to reproduce this issue and a fix solution in the patch.



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