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| mqrc 2539 in mq v7.5 - MaxChannels problem |
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| ramires |
 Posted: Sun Oct 21, 2012 12:51 pm Post subject: |
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Knight
Joined: 24 Jun 2001
Posts: 523
Location: Portugal - Lisboa
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and after changing kernel parameters , using the suggested ones from the Infocenter, I was able to connect 
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| bruce2359 |
| Posted: Sun Oct 21, 2012 1:32 pm Post subject: |
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Poobah
Joined: 05 Jan 2008
Posts: 9469
Location: US: west coast, almost. Otherwise, enroute.
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Please help others who might encounter this issue.
What kernel parameters did you change? From what values to what value?
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| ramires |
| Posted: Sun Oct 21, 2012 1:45 pm Post subject: |
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Knight
Joined: 24 Jun 2001
Posts: 523
Location: Portugal - Lisboa
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Thanks for noting that bruce! This is what I did:
edited /etc/sysctl.conf and add these entries:
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kernel.msgmni = 1024
kernel.shmmni = 4096
kernel.shmall = 2097152
kernel.shmmax = 268435456
kernel.sem = 500 256000 250 1024
fs.file-max = 524288
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as suggested in:
http://pic.dhe.ibm.com/infocenter/wmqv7/v7r5/topic/com.ibm.mq.doc/zi00760_.htm
I didn't have any values there before.
I'm doing this test in a Fedora release 14.
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| sebastia |
| Posted: Mon Oct 22, 2012 1:01 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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Hello, coleagues.
Lets see the weekend pending items ...
OpSys :
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[sebas@labss2 ~]$ cat /etc/issue
Red Hat Enterprise Linux AS release 4 (Nahant Update 4)
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RAM :
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[sebas@labss2 ~]$ cat /proc/meminfo
MemTotal: 8309660 kB
MemFree: 17044 kB
Buffers: 26896 kB
Cached: 8009964 kB
SwapCached: 0 kB
Active: 225036 kB
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Error log : you are right, mr Ramires ...
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[sebas@labss2 errors]$ cat AMQERR01.LOG | grep 6024
AMQ6024: Insufficient resources are available to complete a system request.
AMQ6024: Insufficient resources are available to complete a system request.
AMQ6024: Insufficient resources are available to complete a system request.
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/etc/sysctl.conf : changed and rebooting right now
Conclusion : I want to be able to code "MAXCHANNELS=30000" ... jejeje
More in 1 hour .. and THANKS A LOT !!!! Sebastian. |
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| sebastia |
| Posted: Mon Oct 22, 2012 1:53 am Post subject: |
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Grand Master
Joined: 07 Oct 2004
Posts: 1003
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OK - with modified Kernel values, I can code 30.000 and it does not crash. I have established 1800 SVRCONN channels before running out of resources ... at client XP, jejeje
So, the strange error message will stay, but my error is gone.
Thanks for your teaching, all of you and also (+) mr Ramires.
Shall start a "tail -f AMQERR01.log" always !!! (on Linux, jejeje)
Sebastian. |
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