[Beowulf] running out of rsh ports
landman at scalableinformatics.com
Wed May 3 11:14:31 PDT 2006
Dan Stromberg wrote:
> On Wed, 2006-05-03 at 12:16 -0500, Bruce Allen wrote:
>> rsh typically uses ports in the 513-1023 range. With a 640 node cluster
>> we are running out of ports. This leads to messages such as:
>> "rcmd: socket: All ports in use"
>> Are there any standard solutions to this other than 'use ssh'? We already
>> have net.ipv4.tcp_tw_recycle = 1 in /etc/sysctl.conf
Hmmm.... we use pdsh for our (customers) clusters. Works quite well.
pdsh uname -a
does the same thing if it is setup right.
Joseph Landman, Ph.D
Founder and CEO
Scalable Informatics LLC,
email: landman at scalableinformatics.com
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