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https://issues.apache.org/jira/browse/HBASE-10123?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13869893#comment-13869893
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Jonathan Hsieh commented on HBASE-10123:
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tl;dr Based on stack's link I'm going to move 60xxx ports to 16xxx ports.
Stack's link basically states the comment ephemeral port ranges:
BSD - 1-1023 reserved. 1024-4999 ephemeral. Others feel 49152-65535 are
ephemeral
AIX - 32768-65535 ephemeral.
HPUX - 49152-65535 ephemeral.
Linux 2.2 - 1024-4999 ephemeral.
Linux 2.4 - 32768-61000 ephmeral.
openBSD - 32786-49151 or 49152-65535 ephemeral
solaris - 32768-65535 ephemeral.
tru64 unix - 1024-4999 ephemeral.
windows 2k8- 49152-65535
basically means we are safe anywhere between 5000-32768.
Looking at my /etc/services (ubuntu 10.04], big blocks that seem untouched
include
12xxx, 14xxx, 16xxx, 18xxxx-19xxx, 21xxx, 23xxx, 26xxx, 28xxx-32768
> Change default ports; move them out of linux ephemeral port range
> -----------------------------------------------------------------
>
> Key: HBASE-10123
> URL: https://issues.apache.org/jira/browse/HBASE-10123
> Project: HBase
> Issue Type: Bug
> Affects Versions: 0.96.1.1
> Reporter: stack
> Priority: Critical
> Fix For: 0.98.0
>
>
> Our defaults clash w/ the range linux assigns itself for creating come-and-go
> ephemeral ports; likely in our history we've clashed w/ a random, short-lived
> process. While easy to change the defaults, we should just ship w/ defaults
> that make sense. We could host ourselves up into the 7 or 8k range.
> See http://www.ncftp.com/ncftpd/doc/misc/ephemeral_ports.html
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