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raz |
Posted: Mon Jun 30, 2008 8:48 am Post subject: channel issue |
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Acolyte
Joined: 10 Jul 2007 Posts: 70
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I'm seeing the following message in my qmgr error logs very frequently.
MQ6.0.2.1 on Solaris9.
Could anybody help me on this.
06/30/08 13:27:38 - Process(26342.203) User(mqm) Program(amqrmppa)
AMQ9528: User requested closure of channel 'TEST.P'.
EXPLANATION:
The channel is closing because of a request by the user.
ACTION:
None.
----- amqrmssa.c : 2400 -------------------------------------------------------
06/30/08 13:27:38 - Process(26342.203) User(mqm) Program(amqrmppa)
AMQ9001: Channel 'TEST.P' ended normally.
EXPLANATION:
Channel 'TEST.P' ended normally. |
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SAFraser |
Posted: Mon Jun 30, 2008 10:09 am Post subject: |
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 Shaman
Joined: 22 Oct 2003 Posts: 742 Location: Austin, Texas, USA
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AFAIK, the only way such a message can be generated by the queue manager is for a human being (or a human-written script) to affirmatively issue a 'stop channel' command. |
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raz |
Posted: Mon Jun 30, 2008 10:29 am Post subject: |
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Acolyte
Joined: 10 Jul 2007 Posts: 70
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Nobody is issuing the stop channel command. Is it is any network issue.
Thanks |
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SAFraser |
Posted: Mon Jun 30, 2008 11:02 am Post subject: |
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 Shaman
Joined: 22 Oct 2003 Posts: 742 Location: Austin, Texas, USA
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Nope, a network issue would not generate this error.
Perhaps wiser people than me can jump in.... but I would say that someone (or someone's code) is affirmatively issuing the 'stop channel' command, and are logged in as 'mqm' when it happens. |
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sami.stormrage |
Posted: Mon Jun 30, 2008 12:47 pm Post subject: |
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 Disciple
Joined: 25 Jun 2008 Posts: 186 Location: Bangalore/Singapore
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Are there any core dumps or FDC's being created, when the channel stops? _________________ *forgetting everything * |
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fjb_saper |
Posted: Mon Jun 30, 2008 12:57 pm Post subject: |
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 Grand High Poobah
Joined: 18 Nov 2003 Posts: 20756 Location: LI,NY
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SAFraser wrote: |
Nope, a network issue would not generate this error.
Perhaps wiser people than me can jump in.... but I would say that someone (or someone's code) is affirmatively issuing the 'stop channel' command, and are logged in as 'mqm' when it happens. |
SAFraser is right
Quote: |
06/30/08 13:27:38 - Process(26342.203) User(mqm) Program(amqrmppa)
AMQ9528: User requested closure of channel 'TEST.P'.
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Note this could have happened different ways:
- User closed program and corresponding svrconn channel closes (not necessarily user mqm) but in this case I would have expected a message saying the channel is inactive?
- pcf message sent to command server
- mqsc command (MO72)
- runmqsc command
It is essentially an informational message and no action needs to be taken.  _________________ MQ & Broker admin |
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PeterPotkay |
Posted: Mon Jun 30, 2008 1:27 pm Post subject: |
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 Poobah
Joined: 15 May 2001 Posts: 7722
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I occasionally see this error between 2 of my QMs. Always in he middle of the night, almost every night. The SNDR channel reconnects immediately so its not an issue.
I can assure you a user is not stopping this channel in the middle of the night via MQ commands. I suspect it is network related. _________________ Peter Potkay
Keep Calm and MQ On |
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fjb_saper |
Posted: Mon Jun 30, 2008 6:08 pm Post subject: |
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 Grand High Poobah
Joined: 18 Nov 2003 Posts: 20756 Location: LI,NY
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Peter, you're telling us that every night you see
Quote: |
AMQ9528: User requested closure of channel XYZ |
in your logs?
All the other messages I would look at as being normal... I would expect a different message than AMQ9528 if it is network related....
Maybe another of those things to put on the wishlist...  _________________ MQ & Broker admin |
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PeterPotkay |
Posted: Tue Jul 01, 2008 4:27 am Post subject: |
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 Poobah
Joined: 15 May 2001 Posts: 7722
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It happens only every few days. Last time was 6-27-08.
Its always betwen these 2 QMs. Each QM has lots of connections to lots of other QMs. All MQ 6.0.2.1 and 6.0.2.3
And on the sending side I see:
Event Type: Error
Event Source: WebSphere MQ
Event Category: None
Event ID: 9259
Date: 6/27/2008
Time: 4:56:08 AM
User: N/A
Computer: MyServerName
Description:
Connection timed out from host '123.456.78.90'.
A connection from host '123.456.78.90'over TCP/IP timed out.
Check to see why data was not received in the expected time. Correct the problem. Reconnect the channel, or wait for a retrying channel to reconnect itself. _________________ Peter Potkay
Keep Calm and MQ On |
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raz |
Posted: Tue Jul 01, 2008 9:07 am Post subject: |
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Acolyte
Joined: 10 Jul 2007 Posts: 70
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I talked to network person they are syaing that they didn't change any settings. Still I'm seeing the error messages.
Thanks
Raz |
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KeeferG |
Posted: Wed Jul 02, 2008 12:42 am Post subject: |
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 Master
Joined: 15 Oct 2004 Posts: 215 Location: Basingstoke, UK
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We used to get lots of AMQ9206 and AMQ9208 errors, typically after a channel being used sporadically. We lowered our HBINT interval down to 30 and the problems seems to have gone away. If it is a network issue that you are seeing perhaps adjusting the HBINT to a lower value may help you too.
We are still testing the networks elsewhere to determine the cause of the issue. I hate not knowing why failures occur.  _________________ Keith Guttridge
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Using MQ since 1995 |
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raz |
Posted: Wed Jul 02, 2008 10:24 am Post subject: |
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Acolyte
Joined: 10 Jul 2007 Posts: 70
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belchman |
Posted: Fri Aug 29, 2008 8:03 am Post subject: |
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Partisan
Joined: 31 Mar 2006 Posts: 386 Location: Ohio, USA
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We just had it occur in production at 11:20 AM... One of the 2 MQAs is out... unless he stopped the channel, we did not explicitly stop it...
Peter, are you guys using Patrol or is a Firewall on one end of the channel of yours that saw this phenomenon? _________________ Make three correct guesses consecutively and you will establish a reputation as an expert. ~ Laurence J. Peter |
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PeterPotkay |
Posted: Fri Aug 29, 2008 8:23 am Post subject: |
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 Poobah
Joined: 15 May 2001 Posts: 7722
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The 2 QMs are inside the firewall so I don't think that's it.
BMC Patrol? Yes, that is deployed here, although to what extent I don't know. _________________ Peter Potkay
Keep Calm and MQ On |
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belchman |
Posted: Fri Aug 29, 2008 8:28 am Post subject: |
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Partisan
Joined: 31 Mar 2006 Posts: 386 Location: Ohio, USA
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Is Patrol running under mqm auth on you box as is on ours. I know... but monitoring group says BMC requires it... who am I to argue? _________________ Make three correct guesses consecutively and you will establish a reputation as an expert. ~ Laurence J. Peter |
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