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Posted to notifications@accumulo.apache.org by "Christopher Tubbs (JIRA)" <ji...@apache.org> on 2015/06/25 20:19:04 UTC

[jira] [Resolved] (ACCUMULO-3921) Move fixed server ports out of ephemeral port range

     [ https://issues.apache.org/jira/browse/ACCUMULO-3921?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Christopher Tubbs resolved ACCUMULO-3921.
-----------------------------------------
       Resolution: Duplicate
    Fix Version/s:     (was: 1.8.0)

> Move fixed server ports out of ephemeral port range
> ---------------------------------------------------
>
>                 Key: ACCUMULO-3921
>                 URL: https://issues.apache.org/jira/browse/ACCUMULO-3921
>             Project: Accumulo
>          Issue Type: Improvement
>          Components: gc, master, monitor, trace, tserver
>            Reporter: Josh Elser
>            Priority: Critical
>
> During some recent testing, we ran into a case where the monitor failed to restart. Looking at the logs after the fact (it was an automated test), the monitor died because it couldn't bind to 50095.
> The likely problem is that the datanode or namenode happened to grab that port because it's in the ephemeral range which is commonly 32768-61000 (per [wikipedia|https://en.wikipedia.org/wiki/Ephemeral_port]).
> It would be good to give our ports a once-over and start to push towards better default values. This has been a problem for us for quite some time.



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