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MQSeries.net Forum Index » General IBM MQ Support » Channel Status on non-existent channel???

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ipmqadm
PostPosted: Tue Jul 26, 2011 10:22 am    Post subject: Channel Status on non-existent channel??? Reply with quote

Acolyte

Joined: 18 Apr 2007
Posts: 68

Here is the setup:

MQ v7.0 running on a Windows 2003 server.

dis chs(NTTMRC02.MQ400078)
1 : dis chs(NTTMRC02.MQ400078)
AMQ8417: Display Channel Status details.
CHANNEL(NTTMRC02.MQ400078) CHLTYPE(SDR)
CONNAME(S1020429.xxx.LOCAL(1414)) CURRENT
RQMNAME( ) STATUS(STOPPED)
SUBSTATE( ) XMITQ(MQ400078)

start CHANNEL(NTTMRC02.MQ400078)
2 : start CHANNEL(NTTMRC02.MQ400078)
AMQ8227: Channel NTTMRC02.MQ400078 not found.

WHAT??? NOT FOUND????

dis chs(NTTMRC02.MQ400078) all
4 : dis chs(NTTMRC02.MQ400078) all
AMQ8417: Display Channel Status details.
CHANNEL(NTTMRC02.MQ400078) CHLTYPE(SDR)
BATCHES(0) BATCHSZ(50)
BUFSRCVD(0) BUFSSENT(0)
BYTSRCVD(0) BYTSSENT(0)
CHSTADA(2010-05-07) CHSTATI(19.30.29)
COMPHDR(NONE,NONE) COMPMSG(NONE,NONE)
COMPRATE(0,0) COMPTIME(0,0)
CONNAME(S1020429.ABC.LOCAL(1414)) CURLUWID(0000000000000
CURMSGS(0) CURRENT
CURSEQNO(0) EXITTIME(0,0)
HBINT(300) INDOUBT(NO)
JOBNAME(0000265000000DC8) LOCLADDR( )
LONGRTS(999999999) LSTLUWID(0000000000000
LSTMSGDA( ) LSTMSGTI( )
LSTSEQNO(0) MCASTAT(NOT RUNNING)
MONCHL(OFF) MSGS(0)
NETTIME(0,0) NPMSPEED(FAST)
RQMNAME( ) SHORTRTS(10)
SSLCERTI( ) SSLKEYDA( )
SSLKEYTI( ) SSLPEER( )
SSLRKEYS(0) STATUS(STOPPED)
STOPREQ(NO) SUBSTATE( )
XBATCHSZ(0,0) XMITQ(MQ400078)
XQTIME(0,0)

ONE MORE TIME....

dis chl(NTTMRC02.MQ400078)

5 : dis chl(NTTMRC02.MQ400078)
AMQ8147: WebSphere MQ object NTTMRC02.MQ400078 not found.


STILL NOT FOUND...

I've never seen this before where a display of the channel status will display a channel that obviously didn't exist.

I'm issuing these commands via a command prompt so that SHOULD rule out a caching issue I would think in my limited windows admin knowledge.

Has anyone seen this before?

I can't bounce the QM now, but I'm assuming that will remove the ghost channel from the status command...
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exerk
PostPosted: Tue Jul 26, 2011 10:29 am    Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 6339

What does the 'other' end of the channel say in regard to status?
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It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys.
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fjb_saper
PostPosted: Tue Jul 26, 2011 1:00 pm    Post subject: Reply with quote

Grand High Poobah

Joined: 18 Nov 2003
Posts: 20756
Location: LI,NY

For that non existing channel have you tried
Code:
dis chs(NTTMRC02.MQ400078) current
dis chs(NTTMRC02.MQ400078) saved

You might find that you get 2 very different responses...
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gbaddeley
PostPosted: Tue Jul 26, 2011 9:05 pm    Post subject: Reply with quote

Jedi Knight

Joined: 25 Mar 2003
Posts: 2538
Location: Melbourne, Australia

The channel definition and the channel status are stored in different places in the queue manager. Seems its possible for status records to exist for a channel definition which has been deleted.
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ipmqadm
PostPosted: Thu Jul 28, 2011 12:03 pm    Post subject: Reply with quote

Acolyte

Joined: 18 Apr 2007
Posts: 68

I would have thought that once the qmgr bounced that the channel status for the non-existent channel would go away, but the channel status remains even after a bounce of the qmgr...

Is there a way to get rid of the channel status for the non-existent channels?
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PeterPotkay
PostPosted: Thu Jul 28, 2011 12:40 pm    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7722

Recreate the channel.
Stop it. (yeah, I know it won't be running. Get it into a STOPPED state.)
Delete it.

I think that should work. I remember doing something like that years ago.

There may be a better, more official way. If this is a production system, open a PMR ticket with IBM instead of doing something some stranger on the internet suggested.
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Peter Potkay
Keep Calm and MQ On
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ipmqadm
PostPosted: Fri Jul 29, 2011 6:00 am    Post subject: Reply with quote

Acolyte

Joined: 18 Apr 2007
Posts: 68

PeterPotKay,

YOU ARE THE MAN....

Thanks for that tip. It worked.

Whether or not it is the 'official' way it should be done, it is now the way IT WILL BE DONE to clear out this condition.

Many thanks...
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T1sh0
PostPosted: Fri Aug 12, 2011 2:19 pm    Post subject: Reply with quote

Newbie

Joined: 12 Aug 2011
Posts: 1

Hello Acolyte,

I know that I am a bit late with any suggestion....I just registered myself to the site.

The other day, I had the same issue...and guess what???

The reason for it was that when I created a channel for example:

define channel('test.sdr')

I have written the name in quotes. This is why you couldn't start the channel, because you have quoted the wrong name.

I am confident that if you try the same with creating a queue with 'queue name', it doesn't matter qremote or local. And then you try to check out the queue dis qr(queue name) without the quotes. You will get similar error.

Of course channel deletion and recreation is a bit harsh, but sure way of solving the same.

I hope this helps.

Regards
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bruce2359
PostPosted: Fri Aug 12, 2011 2:36 pm    Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.

T1sh0 wrote:
Hello Acolyte,

The reason for it was that when I created a channel for example:

define channel('test.sdr')


This is a valid definition.

Putting apostrophes around an object name ensures that the name will remain in lower-case. If you omit the apostrophes, the object name you type will be folded into UPPER-CASE. This is working as documented.
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