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Ashish Singhi commented on HBASE-18775: --------------------------------------- Can we add a coprocessor for this instead of adding the checks in the core code ? Some think like ReadOnlyClusterEnabler coprocessor which will extend BaseMasterAndRegionServer class and will throw exception in the pre hook of all the required DDL and DML operations. I think coprocessor based solution for this will be more better. > Add a Global Read-Only property to turn off all writes for the cluster > ---------------------------------------------------------------------- > > Key: HBASE-18775 > URL: https://issues.apache.org/jira/browse/HBASE-18775 > Project: HBase > Issue Type: Sub-task > Components: master, regionserver > Affects Versions: HBASE-18477 > Reporter: Zach York > Assignee: Zach York > Attachments: HBASE-18775.HBASE-18477.001.patch, > HBASE-18775.HBASE-18477.002.patch, HBASE-18775.HBASE-18477.003.patch, > HBASE-18775.HBASE-18477.004.patch > > > As part of HBASE-18477, we need a way to turn off all modification for a > cluster. This patch extends the read only mode used by replication to disable > all data and metadata operations. -- This message was sent by Atlassian JIRA (v6.4.14#64029)