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https://issues.apache.org/jira/browse/HBASE-11569?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14496719#comment-14496719
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Enis Soztutar commented on HBASE-11569:
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{{writestate.readOnly}} means that the region cannot accept regular writes.
{{!writestate.readOnly}} thus means that the region can accept regular writes
and can do flushes.
In case the region is opened as a secondary replica, readOnly is set to true.
The region cannot accept regular writes, but it can still accept writes coming
from replay (from the primary replica). In this case though, it should still
not flush even if there are edits in the memstore.
> Flush / Compaction handling from secondary region replicas
> ----------------------------------------------------------
>
> Key: HBASE-11569
> URL: https://issues.apache.org/jira/browse/HBASE-11569
> Project: HBase
> Issue Type: Sub-task
> Reporter: Enis Soztutar
> Assignee: Enis Soztutar
> Fix For: 2.0.0, 1.1.0
>
> Attachments: hbase-11569-master-v3.patch, hbase-11569-v5.patch
>
>
> We should be handling flushes and compactions from the primary region replica
> being replayed to the secondary region replica via HBASE-11568.
> Some initial thoughts for how can this be done is discussed in HBASE-11183.
> More details will come together with the patch.
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