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Jonathan Hsieh commented on HBASE-15128: ---------------------------------------- Is there a reason why the write aspect of table locks could not be used to to block splits and merges from happening? > Disable region splits and merges in HBCK > ---------------------------------------- > > Key: HBASE-15128 > URL: https://issues.apache.org/jira/browse/HBASE-15128 > Project: HBase > Issue Type: Bug > Reporter: Enis Soztutar > Assignee: Heng Chen > Fix For: 2.0.0, 1.3.0 > > Attachments: HBASE-15128.patch, HBASE-15128_v1.patch, > HBASE-15128_v3.patch > > > In large clusters where region splits are frequent, and HBCK runs take > longer, the concurrent splits cause further problems in HBCK since HBCK > assumes a static state for the region partition map. We have just seen a case > where HBCK undo's a concurrently splitting region causing number of > inconsistencies to go up. > We can have a mode in master where splits and merges are disabled like the > balancer and catalog janitor switches. Master will reject the split requests > if regionservers decide to split. This switch can be turned on / off by the > admins and also automatically by HBCK while it is running (similar to > balancer switch being disabled by HBCK). > HBCK should also disable the Catalog Janitor just in case. -- This message was sent by Atlassian JIRA (v6.3.4#6332)