SSH connection hangs when attempting to exit after starting ClearCase

Technote (troubleshooting)


Problem(Abstract)

This technote explains how to resolve an issue that can occur where an SSH connection hangs when attempting to exit after starting IBM Rational ClearCase (CC) on Linux.

Symptom

Linux SSH connection hangs when attempting to exit after starting ClearCase.

This can affect the use of scripts to start/stop ClearCase remotely using SSH.



Cause

This is a due to a OpenSSH server design, which will not close the console until all process/jobs executed by the user are completed.

Refer to this SSH FAQ for further details, http://www.snailbook.com/faq/background-jobs.auto.html


Resolving the problem

Redirect the ClearCase start script to either /dev/null or to a log file.

Example:
/usr/atria/etc/clearcase start < /dev/null >& /dev/null

/usr/atria/etc/clearcase start < /tmp/ccstart >& /tmp/ccstart

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Document information


More support for:

Rational ClearCase
ALBD

Software version:

7.0, 7.0.1, 7.1, 2003.06.00

Operating system(s):

Linux

Reference #:

1351507

Modified date:

2010-10-27

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