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stack commented on HBASE-21073: ------------------------------- bq. Probably ok to delete it entirely? Agree sir. An option we pass the master on start... ./bin/hbase-daemon.sh start master --maintenance_mode Just noticed in shell that there is a command 'is_in_maintenance_mode', FYI. > "Maintenance mode" master > ------------------------- > > Key: HBASE-21073 > URL: https://issues.apache.org/jira/browse/HBASE-21073 > Project: HBase > Issue Type: Sub-task > Components: amv2, hbck2, master > Reporter: stack > Assignee: Mike Drob > Priority: Major > Attachments: HBASE-21073.master.001.patch, > HBASE-21073.master.002.patch, HBASE-21073.master.003.patch > > > Make it so we can bring up a Master in "maintenance mode". This is parse of > master wal procs but not taking on regionservers. It would be in a state > where "repair" Procedures could run; e.g. a Procedure that could recover meta > by looking for meta WALs, splitting them, dropping recovered.edits, and even > making it so meta is readable. See parent issue for why needed (disaster > recovery). -- This message was sent by Atlassian JIRA (v7.6.3#76005)