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Posted to dev@hbase.apache.org by "Andrew Purtell (JIRA)" <ji...@apache.org> on 2015/08/18 18:30:46 UTC
[jira] [Resolved] (HBASE-11116) Allow ReplicationSink to write to
tables when READONLY is set
[ https://issues.apache.org/jira/browse/HBASE-11116?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Andrew Purtell resolved HBASE-11116.
------------------------------------
Resolution: Won't Fix
Sounds reasonable. Resolving
> Allow ReplicationSink to write to tables when READONLY is set
> -------------------------------------------------------------
>
> Key: HBASE-11116
> URL: https://issues.apache.org/jira/browse/HBASE-11116
> Project: HBase
> Issue Type: New Feature
> Components: regionserver, Replication
> Reporter: Geoffrey Anderson
>
> A common practice with MySQL replication is to enable the read_only flag (http://dev.mysql.com/doc/refman/5.5/en/server-system-variables.html#sysvar_read_only) on slaves in order to disallow any user changes to a slave, while allowing replication from the master to flow in. In HBase, enabling the READONLY field on a table will cause ReplicationSink to fail to apply changes. It'd be ideal to have the default behavior allow replication to continue going through, a configurable option to influence this type of behavior, or perhaps even a flag that manipulates a peer's state (e.g. via add_peer) that dictates if replication can write to READONLY tables.
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