I have the M&C. The problem is that I have a limit of 200 channels that I
know was not even remotely approached during our peak operating periods,
yet the message shows up. The 'For example' part is useless and should have
been omitted because it is not accurate or truly specific about whatever
the actual problem was that caused the message to be generated. The useful
part is the procedure to stop and start the channel. the rest is just
guessing and has no place in a manual that is supposed to help with problem
diagnosis and resolution. I have less than 50 channels defined.
Ernest Roberts
IT - Sr Sys Prog
MBUSA, LLC
Three Mercedes Drive
Montvale, NJ 07345
201-573-2619
201-573-4383 fax
866-308-3782 pager
- Forwarded by Ernest Roberts/171/DCAG/DCX on 08/22/2003 10:10 AM -
"Kearns, Emile
E" To: [EMAIL PROTECTED]
<[EMAIL PROTECTED] cc:
.ZA> Subject: Re: message CSQX558E - too
many channels?
Sent by:
MQSeries List
<[EMAIL PROTECTED]
en.AC.AT>
08/22/2003 02:02
AM
Please respond
to MQSeries List
CSQX558E csect-name Remote channel channel-name not available
Explanation: The channel channel-name at the remote queue manager is
currently stopped or is otherwise unavailable. For example, there might be
too many channels current to be able to start it.
Severity: 8
System Action: The channel does not start.
System Programmer Response: This might be a temporary situation, and the
channel will retry. If not, check the status of the channel at the remote
queue manager. If it is stopped, issue a START CHANNEL command to restart
it. If there are too many channels current, either wait for some of the
operating channels to terminate, or stop some channels manually, before
restarting the channel.
-Original Message-
From: EARmerc Roberts [mailto:[EMAIL PROTECTED]
Sent: 21 August 2003 10:00
To: [EMAIL PROTECTED]
Subject: Re: message CSQX558E - too many channels?
Thanx, Joep,
I looked and found values of 200, which should have been enough considering
our current level of activity. I am thinking that the message doc is
somewhat misleading. I am assuming that dynamic channels are included in
the specification and we are IP-only. I'll do some more research on the
problem.
again, Thanx.
Ernest Roberts
IT - Sr Sys Prog
MBUSA, LLC
__
Robert,
There are several parameters limiting the number of active channels. They
are in CSQ6CHIP. See sample SCSQPROC(CSQ4X4PRM).
Have a look at ACTCHL, CURRCHL, LU62CHL and TCPCHL.
Cheers, Joep
-Original Message-
From: EARmerc Roberts [mailto:[EMAIL PROTECTED]
Sent: donderdag 21 augustus 2003 16:18
To: [EMAIL PROTECTED]
Subject: message CSQX558E - too many channels?
Hello MQ persons,
We are running MQ v 5.3 on OS/390 v2.10.
Our qmgr reported message CSQX558E for a channel and the M&C guide said
about this: "there might be too many channels current to be able to start
it."
The channel appeared to have no problem after a STOP and then a START were
issued. What I want to do is make sure I am not restricting our growing MQ
traffic with my current parameter settings.
Is there a parameter that actually limits the number of active channels? Is
there a DISPLAY command that can show that parameter value?
I found parameter "CTHREAD=300" in the assembly JCL for CSQ6SYSP. Also,
"IDBACK=20" was specified for non-TSO connections. The doc doesn't give a
clear indication of what the parameters affect, but does state that a
channel initiator can have more than one connection to a qmgr.
Am I on the right track with this issue? should I alter those parameters
upward?
Thanx in advance?
Ernest Roberts
IT - Sr Sys Prog
MBUSA, LLC
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