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From "Christopher Tubbs (JIRA)" <>
Subject [jira] [Commented] (ACCUMULO-3409) Move default ports out of ephemeral range
Date Mon, 15 Dec 2014 17:54:13 GMT


Christopher Tubbs commented on ACCUMULO-3409:

After discussing with [~ecn], I'm a bit more understanding of where this issue might be a
problem. In particular, if one is using "" and running a GC and/or Monitor on
the same host as the master, and the master has to talk to a large number of tservers initially,
it will grab client ports from the same Dynamic range, which might prevent the GC and/or Monitor
from starting up. This an annoyance, and an inconvenience, for a common scenario.

Changing the default will improve this experience (and I think this is the reason we should
go ahead and make this change).

> Move default ports out of ephemeral range
> -----------------------------------------
>                 Key: ACCUMULO-3409
>                 URL:
>             Project: Accumulo
>          Issue Type: Bug
>            Reporter: Sean Busbey
>            Priority: Blocker
>              Labels: incompatible
>             Fix For: 2.0.0
> We have two components with default ports in the [IANA ephemeral range|]:
the GC at 50091 and the monitor at 50095. We should move these to not be in the ephemeral
> This change will be disruptive, particularly for the monitor UI port, so we should wait
for a major release and include a release note that explains how to maintain the previous
port choice using configuration settings in accumulo-site.xml.

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