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https://issues.apache.org/jira/browse/HBASE-6398?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13479172#comment-13479172
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Sameer Vaishampayan commented on HBASE-6398:
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Don't know why St.Ack's comments are not here. I remember his response was that
the patch as is will get report info for all data nodes every time the method
is called, therefore a performance issue. This I am trying to rectify by adding
a new API which will return me a data node info for a particular data node
given a hostname. This change is in Hadoop hdfs and therefore has a longer
dependency.
The review for Hadoop changes is out :
https://reviews.apache.org/r/7630/
> Print a warning if there is no local datanode
> ---------------------------------------------
>
> Key: HBASE-6398
> URL: https://issues.apache.org/jira/browse/HBASE-6398
> Project: HBase
> Issue Type: Improvement
> Reporter: Elliott Clark
> Assignee: Sameer Vaishampayan
> Labels: noob
> Attachments: 6398-4.patch
>
>
> When starting up a RS HBase should print out a warning if there is no
> datanode locally. Lots of optimizations are only available if the data is
> machine local.
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