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MQSeries.net Forum Index » General IBM MQ Support » TCP/IP error and channel in retrying state

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Anirud
PostPosted: Sat May 28, 2005 3:51 pm    Post subject: TCP/IP error and channel in retrying state Reply with quote

Master

Joined: 12 Feb 2004
Posts: 285
Location: Vermont

Hi,
I am seeing this error in the error logs. The channel is in Retrying state. I recycled the channel and its still in retrying state. This setup was wroking fine until today.

This is the error from the error logs of queue manager QMA...
Quote:
-------------------------------------------------------------------------------
05/28/05 11:56:04
AMQ9206: Error sending data to host xxx.xx.xx.xxx.

EXPLANATION:
An error occurred sending data over TCP/IP to xxx.xx.xx.xxx. This may be due to
a communications failure.
ACTION:
The return code from the TCP/IP(write) call was 32 X('20'). Record these values
and tell your systems administrator.
----- amqccita.c : 2049 -------------------------------------------------------
05/28/05 11:56:04
AMQ9999: Channel program ended abnormally.

EXPLANATION:
Channel program 'QMA.QMB' ended abnormally.
ACTION:
Look at previous error messages for channel program 'QMA.QMB' in
the error files to determine the cause of the failure.
----- amqrccca.c : 784 --------------------------------------------------------


This is from the error logs of queue manager QMB

Quote:
-------------------------------------------------------------------------------
05/29/05 07:41:07
AMQ9213: A communications error for TCP/IP occurred.

EXPLANATION:
An unexpected error occurred in communications.
ACTION:
The return code from the TCP/IP(select) [TIMEOUT] 120 seconds call was 0
(X'0'). Record these values and tell the systems administrator.
----- amqccita.c : 3084 -------------------------------------------------------

After working on this for a while, I didn't see anything wrong with MQ. I think this is a network issue rather than MQ. Any ideas?

Environment: AIX 5.2, MQ 5.3.0.6 (QMA), MQ 5.3.0.7 (QMB)
No FDC's.

I searched for the TCP/IP return code 32 x('20') without any luck.

Any ideas/help will be much appreciated.

Thanks.
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csmith28
PostPosted: Sat May 28, 2005 4:31 pm    Post subject: Reply with quote

Grand Master

Joined: 15 Jul 2003
Posts: 1196
Location: Arizona

The TCP/IP 32 code means BROKEN PIPE but I am not sure what that means.

Is the sender channel pingable?
Has it been modified recently?
Is port 1414 listenging on the QMB Server?
Is port 1414 LISTENING?
Is the Listener running there?
What is the status of the Receiver QMA.QMB?
Can you ping the remote server?
_________________
Yes, I am an agent of Satan but my duties are largely ceremonial.
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PeterPotkay
PostPosted: Sun May 29, 2005 4:45 am    Post subject: Reply with quote

Poobah

Joined: 15 May 2001
Posts: 7722

After doing the ping test, trying doing a telnet session from ServerA to ServerB port 1414.

Sometimes pings work, but the telnet doesn't, in which case neither will the MQ channels.

Note that if you do get a good telnet session open, when you kill it, a harmless FDC will be prodoced on QMB.
_________________
Peter Potkay
Keep Calm and MQ On
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Anirud
PostPosted: Sun May 29, 2005 6:57 am    Post subject: Reply with quote

Master

Joined: 12 Feb 2004
Posts: 285
Location: Vermont

Thank You, csmith and peter, for your replies.
I worked on it for a while yesterday and was tired of it. Thought of working on it today and this morning surprisingly the channel was running. I don't see anymore errors in the error log.

I think that was a network issue.

Thanks again.
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