[Nagiosplug-devel] [ nagiosplug-Bugs-1852198 ] Check_by_ssh exit code always 0

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Bugs item #1852198, was opened at 2007-12-17 09:56
Message generated for change (Comment added) made by tonvoon
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Category: General plugin execution
Group: None
>Status: Pending
Resolution: None
Priority: 5
Private: No
Submitted By: ADW (alain_dewit)
Assigned to: Nobody/Anonymous (nobody)
Summary: Check_by_ssh exit code always 0

Initial Comment:
The "check_by_ssh" plugin report always an exit status/code of 0 when it should return a value of "2".
Should be the same for the other exit code values.

Plugin compiled from nagios-plugins-1.4.7.tar.gz on a RedHat Fedora Core Intel system.

Best regards


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>Comment By: Ton Voon (tonvoon)
Date: 2008-05-27 22:31

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Hi!

I agree with Matthias - this works as designed. I've added a comment to
the -f option to state that the return code has to be 0.

A possibility is to remove the -f option, but that can be left for another
discussion.

I've marked the call to pending so it will auto-close after 7 days if
there are no updates.

Ton

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Comment By: Matthias Eble (psychotrahe)
Date: 2008-01-04 23:38

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Hello alain,

I've looked into this issue and can reproduce the described behaviour..
But: check_by_ssh's -f
argument simply adds -f to the ssh call. With -f, ssh immediately returns,
even if the remote command is still running. Actually there is no exit code
at this point.

However, check_by_ssh waits for the command output, IMO because it reads
from the output file descriptor which is left open until the remote command
execution is done.

But this is a side effect.

Note that
/usr/bin/ssh -f 127.0.0.1 'exit 2' ;echo $?
also returns 0. I'd thus say check_by_ssh -f works as desi(gn|r)ed

I cannot imagine what -f should be good for though. But we should at least
place
a note in --help.

Any other comments?

Matthias


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Comment By: ADW (alain_dewit)
Date: 2007-12-17 11:11

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I forgot to say that the problem only occur when using the "-f" (fork)
option.

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