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https://issues.apache.org/jira/browse/HBASE-3909?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247116#comment-13247116
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Uma Maheswara Rao G commented on HBASE-3909:
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Point 11) is incomplete:
{quote}
11) Final question is that, we are claiming hadoop can run in commodity
hardwares, in that case some configuration items can be different in each
machine. for example: 'hbase.regionserver.handler.count'..etc
{quote}
But the zookeeper based design may update the configurations in all nodes as
same.
We can't provide dynamic configuration updation functionality for such kind of
properties right? If you see one property in DataNode, dataXceiverCount. We can
configure this property defferently in each machine, and also this is a
dynamically changeable item.
> Add dynamic config
> ------------------
>
> Key: HBASE-3909
> URL: https://issues.apache.org/jira/browse/HBASE-3909
> Project: HBase
> Issue Type: Bug
> Reporter: stack
> Fix For: 0.96.0
>
> Attachments: 3909-v1.patch, 3909.v1
>
>
> 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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