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https://issues.apache.org/jira/browse/STORM-2886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16610995#comment-16610995
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Bo Hu commented on STORM-2886:
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Hi,
I am a newbie to storm. I wonder is there any pointer on which specific part of
codebase I can look into first? The `withNimbusDaemon` function is in
LocalCluster.java.
Thanks,
Bo
> Look into better phemeral port support in LocalCluster.withNimbusDaemon
> -----------------------------------------------------------------------
>
> Key: STORM-2886
> URL: https://issues.apache.org/jira/browse/STORM-2886
> Project: Apache Storm
> Issue Type: Improvement
> Components: storm-server
> Affects Versions: 1.0.0, 2.0.0
> Reporter: Robert Joseph Evans
> Priority: Major
> Labels: newbie
>
> We have a few tests that use a LocalCluster and then launch an actual Nimbus
> Thrift Server instance. This is mostly to test that the thrift code works
> properly.
> In some cases this can cause issues because by default it is going to get a
> single hard coded port.
> In most cases we work around this, like in STORM-2885 by finding a free port
> and then using that for both client and server configs.
> This does not eliminate the race, but it makes it very unlikely. It would be
> great if we could eliminate the race by somehow bringing up the thrift server
> on an ephemeral port, and then providing a way to get that port through an
> API in LocalCluster.
> One of the issues we would have to overcome is that we explicitly check for
> positive port numbers, and we would only want to turn that off for this
> particular use case.
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