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MQSeries.net Forum Index » General IBM MQ Support » Performance of the message transfering between queue manager

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bruce2359
PostPosted: Wed Jun 20, 2012 4:41 pm    Post subject: Reply with quote

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Posts: 9475
Location: US: west coast, almost. Otherwise, enroute.

Quote:
And depending on message persistency, your logging type and logging space you might run out of logging space before you run out of queue space

This would be in error logs.
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visasimbu
PostPosted: Thu Jun 21, 2012 5:47 am    Post subject: Reply with quote

Disciple

Joined: 06 Nov 2009
Posts: 171

Quote:
And depending on message persistency, your logging type and logging space you might run out of logging space before you run out of queue


Here I have specified some of the parameters in qm.ini file of the receiving system. Log type is circular. Log space is also more.

Log:
LogPrimaryFiles=194
LogSecondaryFiles=114
LogFilePages=65535
LogType=CIRCULAR
LogBufferPages=4096
LogWriteIntegrity=TripleWrite
CHANNELS:
MaxChannels=5000
MQIBindType=FASTPATH
TuningParameters:
DefaultQBufferSize=104857600
DefaultPQBufferSize=104857600


I could not find any special error related to this channel and message transfer in log files...
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bruce2359
PostPosted: Thu Jun 21, 2012 6:14 am    Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 9475
Location: US: west coast, almost. Otherwise, enroute.

Did you see any references to the channel? Like channel starting or stopping?

Any references to logs?
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ramires
PostPosted: Thu Jun 21, 2012 6:29 am    Post subject: Reply with quote

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Joined: 24 Jun 2001
Posts: 523
Location: Portugal - Lisboa

visasimbu wrote:

Log:
LogPrimaryFiles=194
LogSecondaryFiles=114
LogFilePages=65535
LogType=CIRCULAR
LogBufferPages=4096
LogWriteIntegrity=TripleWrite
CHANNELS:
MaxChannels=5000
MQIBindType=FASTPATH
TuningParameters:
DefaultQBufferSize=104857600
DefaultPQBufferSize=104857600

these are very different from the defaults, why did you decide for these parameters?
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visasimbu
PostPosted: Fri Jun 22, 2012 6:16 am    Post subject: Reply with quote

Disciple

Joined: 06 Nov 2009
Posts: 171

Quote:
Did you see any references to the channel? Like channel starting or stopping?


No i didnt see any reference in the log files.

There is no error for the channels in the log files.
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mqjeff
PostPosted: Fri Jun 22, 2012 6:31 am    Post subject: Reply with quote

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Joined: 25 Jun 2008
Posts: 17447

are you looking in the queue manager specific log files, or the overall log files?
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bruce2359
PostPosted: Fri Jun 22, 2012 6:56 am    Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 9475
Location: US: west coast, almost. Otherwise, enroute.

bruce2359 wrote:
Did you see any references to the channel? Like channel starting or stopping?

Any references to logs?


Please answer my questions.

Do you see ANY references to channels or logs? It is normal to see channel start/stop events in logs. If you see NO references, you must be looking in the wrong errors directory.
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visasimbu
PostPosted: Mon Jun 25, 2012 5:38 am    Post subject: Reply with quote

Disciple

Joined: 06 Nov 2009
Posts: 171

Quote:
Do you see ANY references to channels or logs? It is normal to see channel start/stop events in logs. If you see NO references, you must be looking in the wrong errors directory.


Yes. I can able to see channel start and stop logs in the corresponding log files.

Quote:
are you looking in the queue manager specific log files, or the overall log files?

I am checking in the queue manager log files. It shows channel start and stopped log files.

Still I could not find out the issues. I have tried to increase the batch size of the sender and receiver channels. Though no outcome on this.
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Vitor
PostPosted: Mon Jun 25, 2012 5:50 am    Post subject: Reply with quote

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Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA

visasimbu wrote:
Still I could not find out the issues.


Erm...

visasimbu wrote:
I am checking in the queue manager log files. It shows channel start and stopped log files.


What were you expecting to see - a line in the error log reading "This is your problem"???

If the logs contain repeated references to the channel starting and stopping, that's why the messages don't go very quickly; the channel is busy starting and stopping! The channel should start on first message, run until all the messages are sent, then become inactive (not stopped) after the configured interval.

So what's the reported reason for the channel starting & stopping?
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exerk
PostPosted: Mon Jun 25, 2012 6:06 am    Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 6339

Vitor wrote:
If the logs contain repeated references to the channel starting and stopping, that's why the messages don't go very quickly; the channel is busy starting and stopping! The channel should start on first message, run until all the messages are sent, then become inactive (not stopped) after the configured interval.

So what's the reported reason for the channel starting & stopping?

And also, to expand on Vitor's question, what is the time-stamp between start and stop?
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