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| Installing MQ version 7 |
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| Sam Uppu |
 Posted: Wed Aug 12, 2009 10:21 am Post subject: Installing MQ version 7 |
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Yatiri
Joined: 11 Nov 2008
Posts: 610
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Hi Guys,
We are installing MQ version 7 on our AIX server. When I checked the quick beginnings guide, it says the file descriptors must be increased to 10,000 to aviod any future problems and also data and stack segment limit must be set to unlimited.
When I checked the above using ulimit -a, I see
$ ulimit -a
time(seconds) unlimited
file(blocks) 2097151
data(kbytes) 131072
stack(kbytes) 32768
memory(kbytes) 32768
coredump(blocks) 2097151
nofiles(descriptors) 2000
and with ulimit -aH
$ ulimit -aH
time(seconds) unlimited
file(blocks) 2097151
data(kbytes) unlimited
stack(kbytes) 4194304
memory(kbytes) unlimited
coredump(blocks) unlimited
nofiles(descriptors) unlimited
From the above figures, I need to change stack to unlimited and filedescriptors to 10,000.
Does MQ on AIX doesn't allocate the resources by itself? Do we need to set them explicitly? |
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| Vitor |
| Posted: Wed Aug 12, 2009 10:34 am Post subject: Re: Installing MQ version 7 |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Sam Uppu wrote: |
| Does MQ on AIX doesn't allocate the resources by itself? Do we need to set them explicitly? |
AIX (like most Unix) protects itself by preventing applications going crazy with resources. Some decisions are left to the Unix admin, and expressed via the kernel settings.
So WMQ, like all applications, will allocate as required by itself provided the thresholds are set high enough to allow it to do so.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| Sam Uppu |
| Posted: Wed Aug 12, 2009 10:49 am Post subject: |
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Yatiri
Joined: 11 Nov 2008
Posts: 610
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OK.
So, do I need to increase the file descriptors and stack limit ? |
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| Vitor |
| Posted: Wed Aug 12, 2009 10:58 am Post subject: |
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Grand High Poobah
Joined: 11 Nov 2005
Posts: 26093
Location: Texas, USA
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| Sam Uppu wrote: |
| So, do I need to increase the file descriptors and stack limit ? |
As per the documentation.
_________________
Honesty is the best policy.
Insanity is the best defence. |
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| Sam Uppu |
| Posted: Wed Aug 12, 2009 1:23 pm Post subject: |
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Yatiri
Joined: 11 Nov 2008
Posts: 610
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