[Pacemaker] [Openais] Unusual exit code with /etc/init.d/corosync stop

[Andreas Mock]

-----Ursprüngliche Nachricht-----
Von: Andrew Beekhof <andrew at beekhof.net>
Gesendet: 25.03.2010 09:15:11
An: Andreas Mock <Andreas.Mock at web.de>
Betreff: Re: [Openais] Unusual exit code with /etc/init.d/corosync stop

>On Tue, Mar 23, 2010 at 12:42 AM, Andreas Mock [ wrote:
>> Hi all,
>>
>> I'm using corosync 1.2.0 from the packages of clusterlabs.org on openSuSE 11.2.
>> A correct /etc/init.d/corosync stop issues a return code of 1
>
>The rc code isn't coming from corosync at all.
>Its coming from the last command in stop(), which is "echo".

Where in my original post did I say that the return code comes from  corosync (binary)??

Please read the mail completely. In the first sentence I just described the
version and platform I'm using and that the script /etc/init.d/corosync issues a
return code of 1 when stopping worked correctly.

Some lines further - you can see them in your quoted post - I'll explain - probably in bad English -
what the reason for this return code is, as I investigated this problem by debugging 
the script /etc/init.d/corosync.

Read the rest of my mail carefully and you get the reason for that behaviour.
a) The very last line is: exit $rtrn
b) Where is the global variable $rtrn initialized and set??
c) It gets set in shell function status!!
d) When you do a stop and the stop works status is called the last time in the while
loop setting $rtrn to 1.
e) This variable is never changed afterwards.
f) It is returned by the last statement, look at a)


Best regards
Andreas Mock


>
>Please run the following and report the result:
>   echo ; echo $?
>
>On Fedora it produces:
>
>[09:14 AM] root at f12 ~/tmp # echo ; echo $?
>
>0
>[09:14 AM] root at f12 ~/tmp #
>
>
>> which definitely hurts
>> the Cluster Test Suite when stopping the cluster stack asuming (IMHO correctly)
>> that a problem free execution of the rc script should return 0 and not 1.
>>
>>
>>
>> The problem is indirectly the setting of the return code variable $rtrn in the while
>>
>> loop waiting for corosync to die. While loop is exited exactly when the status
>>
>> call delivers a 1 meaning that the process isn't there any more. This rc of 1
>>
>> will then be delivered as return code of the "stop"-call.
>>
>>
>>
>> Here's the patch just to show the little change.
>>
>> -----------------------8<--------------------------
>>
>> --- /etc/init.d/corosync 2010-01-20 21:23:53.000000000 +0100
>> +++ /tmp/corosync 2010-03-23 00:25:12.794065102 +0100
>> @@ -138,6 +138,7 @@
>> ;;
>> stop)
>> stop
>> + rtrn=0
>> ;;
>> *)
>> echo "usage: $0 {start|stop|restart|reload|force-reload|condrestart|try-restart|status}"
>> -----------------------8<--------------------------
>>
>>
>>
>> Best regards
>>
>> Andreas Mock
>>
>>
>>
>>
>>
>>
>>
>>
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