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stack commented on HBASE-20976: ------------------------------- [~allan163] I backported HBASE-20708 yesterday. Should we close this now? I've been backporting the main AMv2 changes up in branch-2.1 to branch-2.0 over the last few days after first trying patches on cluster.... Patches are big but I see them as bug-fixes, critical ones.. AMv2 has to work well when folks go to use hbase2, even for those who try hbase-2.0.x first. It is taking a while as I test before commit. I'm almost caught up. > 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 > Reporter: Allan Yang > Assignee: Allan Yang > Priority: Major > Fix For: 2.0.2 > > Attachments: HBASE-20976.branch-2.0.001.patch > > > 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. -- This message was sent by Atlassian JIRA (v7.6.3#76005)