huaxiang sun created HBASE-18363:
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Summary: Hbck option to undeploy in memory replica parent region
Key: HBASE-18363
URL: https://issues.apache.org/jira/browse/HBASE-18363
Project: HBase
Issue Type: Bug
Components: hbck
Affects Versions: 2.0.0-alpha-1, 1.4.0
Reporter: huaxiang sun
Assignee: huaxiang sun
Priority: Minor
We run into cases that with read replica, after split, sometimes, the parent
replica region is left in master's in memory onlineRegion list. This results
in the region got assigned to a region server. Though the root cause will be
fixed by HBASE-18025. We need to enhance hbck tool to fix this in-memory state.
Currently, hbck only allows the fix for primary region (in this case, the
primary region is gone) with fixAssignment option, please see the following
line of code. We will enhance it so it can be applied to replica region as well.
https://github.com/apache/hbase/blob/master/hbase-server/src/main/java/org/apache/hadoop/hbase/util/HBaseFsck.java#L2216
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