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MQSeries.net Forum IndexIBM MQ Installation/Configuration SupportMemory issue on MQ 8 with virtual machine

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sharonv
PostPosted: Wed Dec 27, 2017 12:54 am Post subject: Memory issue on MQ 8 with virtual machine Reply with quote

Apprentice

Joined: 03 Feb 2011
Posts: 27

Hi
we have an mq dedicated server . MQ 8005 with linux RHAT ENT 7.4
this runs on a VM machine with 4 GB ram memory
We use linear logs
Soon after installing the MQ 8005 we started to receive alerts from our monitor system regarding memory exceeding 80 %
i checked our recorded data and noticed that the physical memory builds up and on 3am it it partially cleared by our delete mq log job
i checked also the virtual memory and there i found that MQ uses far more virtual memory then the physical one , and it keeps building up for a week
till the virtual memory maxes and then it is cleaned
i compared this behavior with a physical machine and saw the memory is cleaned often and not reaching any limits
i also compared performance between this server and the old one ( 7.5 with same memory) and the mq8805 seems to do better slightly
so this is not effecting the performance
Does anyone encountered this behavior ? what can i do about it ?
Thanks
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exerk
PostPosted: Wed Dec 27, 2017 2:54 am Post subject: Reply with quote

Jedi Council

Joined: 02 Nov 2006
Posts: 5847

This post is a duplicate of THIS ONE.

Please do not double post. If you post in the wrong forum ask a mod to move it, thank you.

Locking post in the WAS forum.

EDIT: Unable to lock the other post, I'm not a mod in that forum
_________________
It's puzzling, I don't think I've ever seen anything quite like this before...and it's hard to soar like an eagle when you're surrounded by turkeys.

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