Andrew Purtell created HBASE-20087:
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Summary: Periodically attempt redeploy of regions in FAILED_OPEN
state
Key: HBASE-20087
URL: https://issues.apache.org/jira/browse/HBASE-20087
Project: HBase
Issue Type: Improvement
Components: master, Region Assignment
Reporter: Andrew Purtell
Assignee: Andrew Purtell
Fix For: 2.0.0, 1.5.0
Because RSGroups can cause permanent RIT with regions in FAILED_OPEN state, we
added logic to the master portion of the RSGroups extention to enumerate RITs
and retry assignment of regions in FAILED_OPEN state.
However, this strategy can be applied generally to reduce need of operator
involvement in cluster operations. Now an operator has to manually resolve
FAILED_OPEN assignments but there is little risk in automatically retrying them
after a while. If the reason the assignment failed has not cleared, the
assignment will just fail again. Should the reason the assignment failed be
resolved, then operators don't have to do more in order for the cluster to
fully heal.
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