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MQSeries.net Forum Index » General Discussion » curdepth getting full after clearing

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ammx
PostPosted: Tue Aug 21, 2018 7:21 am    Post subject: curdepth getting full after clearing Reply with quote

Acolyte

Joined: 08 Sep 2017
Posts: 50

Hi

I cleared a queue with the command clear qlocal(QUEUE_NAME) and everything seemed to be fine, the curdepth of the queue was 0, but after like 13 minutes the queue starts getting full again. What could be triggering this? No more messages were sent to that queue after clearing the messages

Thanks in advance
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Vitor
PostPosted: Tue Aug 21, 2018 7:28 am    Post subject: Re: curdepth getting full after clearing Reply with quote

Grand High Poobah

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

ammx wrote:
No more messages were sent to that queue after clearing the messages


So where do the messages say they came from?

Is it an application or a system queue?
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bruce2359
PostPosted: Tue Aug 21, 2018 8:40 am    Post subject: Reply with quote

Poobah

Joined: 05 Jan 2008
Posts: 9394
Location: US: west coast, almost. Otherwise, enroute.

What queue precisely? And, what is maxdepth of the queue?
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ammx
PostPosted: Wed Aug 22, 2018 7:39 am    Post subject: Reply with quote

Acolyte

Joined: 08 Sep 2017
Posts: 50

The messages are from a system queue. The queue curdepth is 409421 and the MAXDEPTH is 80000000. On the error logs the only thing I could find is

AMQ7234: 80000 messages from queue 'xxxx' loaded on queue manager 'XXX'

it showed first 80000 messages, then 90000,.....100000 messages
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exerk
PostPosted: Wed Aug 22, 2018 7:43 am    Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 6339

ammx wrote:
The messages are from a system queue..

WHICH one?
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Vitor
PostPosted: Wed Aug 22, 2018 7:55 am    Post subject: Reply with quote

Grand High Poobah

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

ammx wrote:
The messages are from a system queue


And the putting application in the MQMD is......?
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gbaddeley
PostPosted: Wed Aug 22, 2018 4:43 pm    Post subject: Reply with quote

Jedi

Joined: 25 Mar 2003
Posts: 2492
Location: Melbourne, Australia

ammx wrote:
The messages are from a system queue. The queue curdepth is 409421 and the MAXDEPTH is 80000000. On the error logs the only thing I could find is
AMQ7234: 80000 messages from queue 'xxxx' loaded on queue manager 'XXX'
it showed first 80000 messages, then 90000,.....100000 messages

This is normal behaviour by MQ. Nothing had consumed any messages for quite a while, so MQ removed its in-memory index cache for the queue. Then something opened the queue, so MQ proceeded to reload its cache. It produces AMQ7234 every 10,000 messages for your information.

This can indicate a message processing issue, as queues should not build up a very large number of messages and not be consumed. The cache reload process can impact qmgr performance. It can also delay the command processor if there are command requests for the queue.
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