Ahmad Alhour created HBASE-28503:
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Summary: Keep entries in draining ZNode when HMaster is configured
to reject decommissioned hosts
Key: HBASE-28503
URL: https://issues.apache.org/jira/browse/HBASE-28503
Project: HBase
Issue Type: Bug
Reporter: Ahmad Alhour
Last month we shipped a config feature to allow the HMaster to reject
decommissioned hosts. After some testing internally at HubSpot, we discovered
that the HMaster loses the entry of a decommissioned host from the draining
ZNode when the RegionServer restarts or becomes dead.
Our proposal for this fix would be to keep entries in the draining ZNode as
long as the HMaster is configured to reject decommissioned hosts.
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