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https://issues.apache.org/jira/browse/HBASE-16087?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15347581#comment-15347581
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Ashish Singhi commented on HBASE-16087:
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bq. Replicating acl tables is a security risk since the coprocessors are
caching. We shouldn't allow that hole.
We setup two DCs. One act as active and other one as standby. When active goes
down, the standby automatically becomes active and it start serving the client
requests which were going to active, so to handle all the security settings
done on active we need to do the same on standby also so only we replicate
these tables.
bq. Namespace and meta should never be replicated.
Yes, we don't do it.
> Replication shouldn't start on a master if if only hosts system tables
> ----------------------------------------------------------------------
>
> Key: HBASE-16087
> URL: https://issues.apache.org/jira/browse/HBASE-16087
> Project: HBase
> Issue Type: Improvement
> Affects Versions: 2.0.0, 1.3.0
> Reporter: Elliott Clark
> Assignee: Elliott Clark
> Attachments: HBASE-16087.patch, HBASE-16087.v1.patch
>
>
> System tables aren't replicated so we shouldn't start up a replication master
> if there are no user tables on the master.
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