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https://issues.apache.org/jira/browse/HBASE-1728?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12737356#action_12737356
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Andrew Purtell commented on HBASE-1728:
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@Ryan:
1) Yes currently but we should not need to take a table offline to update HCD
or HTD attributes, so that can be handled orthogonally. One option for that is
putting HTDs and HCDs up into ZK, with mirror on disk catalog tables to be used
only for cold init scenarios, as discussed on IRC.
2) This change set only associates a 32 bit integer with column families. We
should support pluggable replication policies. Each can encode state into that
32 bit value however they would like. This issue anticipates a simple default
policy of yes/no.
> Column family scoping
> ---------------------
>
> Key: HBASE-1728
> URL: https://issues.apache.org/jira/browse/HBASE-1728
> Project: Hadoop HBase
> Issue Type: Sub-task
> Reporter: Andrew Purtell
> Fix For: 0.21.0
>
> Attachments: HBASE-1728.patch
>
>
> Support column family scoping via a new HCD attribute. Add convenience
> methods. Add Thrift, REST, and Stargate support. Provide initial set of
> scoping constants and javadoc setting expectations for a simple default
> binary scoping policy: replicate, or do not. Make the underlying type Integer
> so more complex edit routing policies are possible.
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