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From "Christopher Tubbs (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (ACCUMULO-3921) Move fixed server ports out of ephemeral port range
Date Thu, 25 Jun 2015 18:19:04 GMT

     [ 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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