Re: Changing user password upsets informix

truss Command

Purpose:

Traces a process's system calls, dynamically loaded user level
function calls, received signals, and
incurred machine faults.



________________________________

From: IBM AIX Discussion List [mailto:aix-l@xxxxxxxxxxxxx] On
Behalf Of Mark J Ray
Sent: Tuesday, January 22, 2008 4:05 PM
To: aix-l@xxxxxxxxxxxxx
Subject: Re: Changing user password upsets informix



Truss is not the same data that's contained in a trace.

Best Regards,

Mark J. Ray
Advisory IT Specialist
p Series Team
Global Technology Services
IBM
email: raym@xxxxxxxxxx


"Sandor W. Sklar" <ssklar@xxxxxxxxxxxx>




"Sandor W. Sklar" <ssklar@xxxxxxxxxxxx>
Sent by: IBM AIX Discussion List
<aix-l@xxxxxxxxxxxxx>

01/22/2008 11:27 AM

Please respond to
IBM AIX Discussion List <aix-l@xxxxxxxxxxxxx>



To

aix-l@xxxxxxxxxxxxx


cc




Subject

Re: Changing user password upsets informix


Actually, you can trace a single process, with AIX 5.2.

$ oslevel
5.2.0.0
$ lslpp -w `which truss`
File Fileset

Type


------------------------------------------------------------------------
----
/usr/bin/truss
bos.sysmgt.serv_aid
File



As root, you'll want to:

truss -aefp <pid>

... where <pid> is the process you want to watch.

-s-

On Jan 22, 2008, at 8:10 AM, Mark J Ray wrote:

> Suzanne:
>
> What you want to do is trace the listener process to see
what's
> causing the error. Unfortunately, in AIX 5.2,
> you can't zero in on a single process, so you have to trace
the
> whole system. What I would do in this case
> is to set up a system trace with the following command:
>
> trace -a -o <tracefile.name> ; sleep 30 ; trcstop
>
> This says to trace the system for 30 seconds, then stop. While
the
> trace is running, try to generate the exact
> error you need analyzed. If you can do this, then the
performance
> folks in Austin, TX, US will be able to
> pin down exactly what's happening with the listener.
>
> Best Regards,
>
> Mark J. Ray
> Advisory IT Specialist
> p Series Team
> Global Technology Services
> IBM
> email: raym@xxxxxxxxxx
>
>
> <graycol.gif>"Davies, Suzanne"
<Suzanne.Davies@xxxxxxxxxxxxxxx>
>
>
> "Davies, Suzanne" <Suzanne.Davies@xxxxxxxxxxxxxxx>
> Sent by: IBM AIX Discussion List <aix-l@xxxxxxxxxxxxx>
> 01/22/2008 10:28 AM
> Please respond to
> IBM AIX Discussion List <aix-l@xxxxxxxxxxxxx>
> <ecblank.gif>
> To
> <ecblank.gif>
> aix-l@xxxxxxxxxxxxx
> <ecblank.gif>
> cc
> <ecblank.gif>
> <ecblank.gif>
> Subject
> <ecblank.gif>
> Changing user password upsets informix
> <ecblank.gif>
> <ecblank.gif>
>
> Hi
>
> We have a cluster which is running AIX 5.2 ML9 and Informix
> V9.40.UC3. If the steprd (an Informix user) AIX password is
changed
> Informix starts generating errors:
>
> 11:01:01 listener-thread: err = -951: oserr = 0: errstr =
steprd:
> Incorrect password or user steprd is not known on the database
server.
>
> It has been to IBM who found a memory leak and provided a
patch
> which fixed that but this is still a problem. The only way
around it
> seems to be to boot the box after which everything works
again. The
> steprd account is set to not expire as this had caused issues
in
> some other installations elsewhere. I have also found many
reference
> to listener-thread errors on Informix but very few related to
the
> -951 error.
>
> If anyone has any ideas I would be really grateful
>
> Thanks
> Regards,
> Suzanne Davies
> Unix BAU Support
> Infrastructure Services, Service Delivery
> External : 020 7 922 3117
> Network : 7430 3117
> E-Mail : suzanne.davies@xxxxxxxxxxxxxxx
>
>
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Telephone:
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