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https://issues.apache.org/jira/browse/HBASE-18775?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16176206#comment-16176206
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Ashish Singhi commented on HBASE-18775:
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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.
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