Re: CPU at 100%

["Emilio Padilla Taylor" <epadilla@xxxxxxxxxxxx>]

Hi Jim,

----- Original Message -----
From: "Jim Langston" <jlangston@conexfreight.com>
To: <MIDRANGE-L@midrange.com>
Sent: Martes 25 de Enero de 2000 10:05 AM
Subject: CPU at 100%


9406-500 V3R7M0

Yesterday around 2:30 our system did something unexpected.
Our system stopped responding to requests, and looking at the
CPU indicator, it was at 100%  Within about 25 minutes I got
one response on my session, then it "locked up" again.  I could
not get anywhere to find out what was going on, I couldn't even
log onto the console, as it normally logs onto QINTER unless
we ENDSBS *ALL *IMMED then it switches to QCTL.

<SNIP>
IF THIS HAPPEND AGAIN YOU COULD USE THE HOGHUNTER CONTROL PANEL FUNCTION, I
THINK IS 76
THIS SHOULD LOWER IN +20 THE JOB THAT IS HOGGING THE CPU.
<SNIP>

I wound up IPLing and waiting and hour and forty five minutes for
it to re-IPL after and ABEND.  So, a few questions:

1. How do I find out what actually happened?  I did a DSPLOG and
   found nothing out of the ordinary.  I searched for RUNPTY in the
   last of the job logs in QEZJOBLOG but didn't find it (I thought
   someone may have switched their job priority to 1).

<SNIP>
IF YOU ARE NOT USING PERFORMANCE MONITOR OR PM400, I THINK IT WOULD BE A
LONG SHOT
<SNIP>

2. How do I get my console to always log on to QCTL instead of
   QINTER at a high run priority so I can actually get in and find out
   what is wrong before I ABEND the system?

<SNIP>
ADDWSE TO THE CONTROL SUBSYSTEM
WHAT I DID IS TO CREATE A USER PROFILE WHO ALWAYS IS PUT IN QCTL
AUTOMATICALLY AFTER SIGNON.  I ONLY USE IT FOR ADMINISTRATION PURPOSES.
<SNIP>

3. Anything I should be doing to prevent this?  Not that I know what
   "This" is.

<SNIP>
BUY A SYSTEM MONITOR.
<SNIP>

TIA for any suggestions.

Regards,

Jim Langston

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