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| anthony.barnes |
 Posted: Fri Jan 13, 2006 7:51 am Post subject: How much 'stuff' in a queue |
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Apprentice
Joined: 01 Jul 2003
Posts: 26
Location: Oak Brook, Illinois
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I'm not sure of the correct terminology but here goes…
How much ‘data’ can I put in a queue if...
If I define a local queue using WSMQ (Version 5.3 CSD11 for example) running on an OS of X (lets just pick AIX 5) how much data can I put in my local queue?
My Queue Manger has been configured with:
MAXMSGL of 104857600
My local queue has been defined with
MAXDEPTH of 640000
MAXMSGL of 104857600
What OS constraints do I hit? What MQ constraints do I hit? What is this limit even called?
Thanks a bunch for your time. |
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| zpat |
| Posted: Fri Jan 13, 2006 8:41 am Post subject: |
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Jedi Council
Joined: 19 May 2001
Posts: 5866
Location: UK
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You would find it difficult to store more data than your filesystem will hold  |
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| anthony.barnes |
| Posted: Fri Jan 13, 2006 9:22 am Post subject: |
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Apprentice
Joined: 01 Jul 2003
Posts: 26
Location: Oak Brook, Illinois
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| Quote: |
| You would find it difficult to store more data than your filesystem will hold |
It that my limiting factor? Say I create 60 circular primary logs each 4Kb x 4095. Is that my "MAX" data? |
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| mvic |
| Posted: Fri Jan 13, 2006 9:35 am Post subject: |
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Jedi
Joined: 09 Mar 2004
Posts: 2080
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| anthony.barnes wrote: |
| It that my limiting factor? Say I create 60 circular primary logs each 4Kb x 4095. Is that my "MAX" data? |
I've heard of Q files greater than 4 Gb in size. I've also been aware of problems (can't remember details sorry) seen on >2 Gb queues early in MQ 5.3. Recent CSD - eg. 11 - should be fine.
The size of circular logs should not limit the depth of your queues. |
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| PeterPotkay |
| Posted: Fri Jan 13, 2006 9:41 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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The theoritical limit on a queue is ~ 2 terrabytes, but of course your file system will fill up long before that.
I have put 25 GB of persistent messages on a single q with circular logging - Win2K MQ 5.3.0.11
_________________
Peter Potkay
Keep Calm and MQ On |
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| PeterPotkay |
| Posted: Fri Jan 13, 2006 9:42 am Post subject: |
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Poobah
Joined: 15 May 2001
Posts: 7722
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Oh yeah, and on most (some? all?) unix systems, you have to enable the largefiles option to go above 2 GB.
_________________
Peter Potkay
Keep Calm and MQ On |
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