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https://issues.apache.org/jira/browse/HBASE-21073?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Mike Drob updated HBASE-21073:
------------------------------
Resolution: Fixed
Fix Version/s: 2.0.3
2.1.1
2.2.0
3.0.0
Release Note:
Instead of being an ephemeral state set by hbck, maintenance mode is now
an explicit toggle set by either configuration property or environment
variable. In maintenance mode, master will host system tables and not
assign any user-space tables to RSs. This gives operators the ability to
affect repairs to meta table with fewer moving parts.
Status: Resolved (was: Patch Available)
Pushed everywhere, thanks for reviews!
> "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
> Fix For: 3.0.0, 2.2.0, 2.1.1, 2.0.3
>
> Attachments: HBASE-21073.branch-2.001.patch,
> HBASE-21073.branch-2.1.001.patch, HBASE-21073.branch-2.1.002.patch,
> HBASE-21073.master.001.patch, HBASE-21073.master.002.patch,
> HBASE-21073.master.003.patch, HBASE-21073.master.004.patch,
> HBASE-21073.master.005.patch, HBASE-21073.master.006.patch,
> HBASE-21073.master.007.patch, HBASE-21073.master.008.patch,
> HBASE-21073.master.009.patch, HBASE-21073.master.010.patch,
> HBASE-21073.master.011.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).
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