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https://issues.apache.org/jira/browse/HBASE-3909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13215346#comment-13215346
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stack commented on HBASE-3909:
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bq. The assumption is there wouldn't be many such config items to change. We
should survey and validate this assumption.
You could do hundreds or even put every config. up there if you wanted. Should
be fine.
bq. When would these znodes be deleted ?
Not sure. Good question. Their insertion would trigger the callback so they'd
be useless after putting. Could let them just expire. Might be good to keep
them around though so could get an idea of what was changed via zk. Need to
think on it.
> Add dynamic config
> ------------------
>
> Key: HBASE-3909
> URL: https://issues.apache.org/jira/browse/HBASE-3909
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 0.94.0
>
>
> I'm sure this issue exists already, at least as part of the discussion around
> making online schema edits possible, but no hard this having its own issue.
> Ted started a conversation on this topic up on dev and Todd suggested we
> lookd at how Hadoop did it over in HADOOP-7001
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