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https://issues.apache.org/jira/browse/HBASE-23259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16977023#comment-16977023
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Nick Dimiduk commented on HBASE-23259:
--------------------------------------
Breaking this sub-task out to a top-level ticket since this improvement to test
is applicable outside of the context of HBASE-18095.
[~bharathv] once your master patch is +1, would you mind checking that the
patch back-ports to branch-2 and branch-1? Note that branch-1 requires jdk7.
> Ability to run mini cluster using pre-determined available random ports
> -----------------------------------------------------------------------
>
> Key: HBASE-23259
> URL: https://issues.apache.org/jira/browse/HBASE-23259
> Project: HBase
> Issue Type: Test
> Components: test
> Affects Versions: 3.0.0
> Reporter: Bharath Vissapragada
> Assignee: Bharath Vissapragada
> Priority: Major
>
> As noted in the code reviews for HBASE-18095, we need the ability to run the
> mini-cluster using a pre-determined set of random (and available) port
> numbers. When I say pre-determined, I mean the test knows these ports even
> before starting the mini cluster.
> In short, the workflow is something like,
> {noformat}
> List<Ports> ports = getRandomAvailablePorts();
> startMiniCluster(conf, ports);
> {noformat}
> The reason we need this is that certain configs introduced in HBASE-18095
> depend on the ports on which the master is expected to serve the RPCs. While
> that is known for regular deployments (like 16000 for master etc), it is
> totally random in the mini cluster tests. So we need to know them before hand
> for templating out the configs.
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