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https://issues.apache.org/jira/browse/HBASE-13449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14490500#comment-14490500
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Josh Elser commented on HBASE-13449:
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I believe the intent of setting that variable to the empty string is that
local_regionservers.sh is intended to support more than one region server
running on a single host. If that's the case, as the comment alludes, all but
one of the regionservers would fail being unable to bind to a specific port
that was already taken.
> HBASE_REGIONSERVER_OPTS in local-regionservers.sh is masked and silently
> reset.
> -------------------------------------------------------------------------------
>
> Key: HBASE-13449
> URL: https://issues.apache.org/jira/browse/HBASE-13449
> Project: HBase
> Issue Type: Bug
> Affects Versions: 1.0.0
> Reporter: Dev Lakhani
>
> In local-regionserver.sh there is a line which masks the current
> HBASE_REGIONSERVER_OPTS
> https://github.com/apache/hbase/blob/master/bin/local-regionservers.sh#L38
> # sanity check: make sure your regionserver opts don't use ports [i.e.
> JMX/DBG]
> export HBASE_REGIONSERVER_OPTS=" "
> We are having trouble with this because:
> 1) As per normal Hadoop convention env variables should be in hbase-env.sh,
> as with other daemons this is where we set jmx/jvm properties.
> 2) Whatever we set in hbase-env.sh gets masked by this line.
> Is there any reason this line is included in the runner and can it be moved
> to the env.sh file?
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