AX 2012 - automatic AOS service restart

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Posted on by Community Member

Hello,

Because of permanent AOS memory usage grow (after each AOS restart, AOS process takes, slowly but constantly, more and more RAM), I am wondering if scheduling regular restart of AOS process would not be workaround; did anyone decided to set such a restart? Or there are maybe other methods to limit memory consumed by AOS service (some memory flush or anything else) without restarting process itself?

regards

Tomasz

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Volker Breitkopf on at

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High memory usage isn't a problem necessarily. Why shouldn't the AOS take advantage of the memory available? Do you have a serious problem there? Or is it just some kind of bad feeling about it?

A good and related blog post on that topic would be this one by Tariq Bell: community.dynamics.com/.../how-to-handle-high-memory-situations-on-your-dynamics-ax-aos.aspx

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Tommy Skaue Moderator on at

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How much memory do you consider to be "too much"? In my experience, it is perfectly normal if AX2012 AOS consumes 1-3GB of RAM.

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Community Member on at

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didn't mention that explicite, sorry - yes, problem with our infrastructure is that AX is slow; from time to time evem extremely slow causing users to complain, education to be delayed/stopped etc. - and this is the reason why I am trying to find bottlenecks.

servers' monitoring shows all parameters of all involved machines ok, except this AOS memory usage growing; in the past it becomes 'solution' taken from our developers - if ax becomes slow, let's restart AOS, and.. it worked. that is why I am considering not to automate AOS restart; not as a solution but more workaround..

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Community Member on at

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and server has 16gb; AOS is now at ~8gb and still slowly growing, so I assume not 'normal'.. :)

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André Arnaud de Cal... 301,020 Super User 2025 Season 2 on at

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Hi Tomek,

Read the next blog. Perhaps you have the same issue and need just a kernel fix. What version of AX2012 are you using (also the CU version)?

www.kaya-nederland.com/ax2012-memory-leak

But I guess it will not solve all your performance problems. Lately we solved performance problems in 5 main processes of a customer. Also CU5 has some performance issues solved.

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Community Member on at

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Hello Andre,

Thanks for this info, hoped it may be solution - but no, seem our version is much higher than one mentioned:

I guess this post was valid for 2012, not 2012R2; if you would be aware of similar issues with kernel for R2 let me know please, will check it as well.

regards

Tomasz

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André Arnaud de Cal... 301,020 Super User 2025 Season 2 on at

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Hi Tomasz,

It is indeed for AX2012 RTM and the feature pack. You are running R2.

It might be possible that there are similar issues in R2. I have not seen it yet.

Looking at your version number I guess you already installed CU1 as well.

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Tommy Skaue Moderator on at

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This might be a long shot, but one place where I saw massive memory consumption was when producing a lot of project invoice lines where the Company Logo was a huge bitmap (bmp). Some of these reports store the logo once for each invoice line, and in such a scenario the logo is stored in memory. The AOS memory consumption grew rapidly to like 12 GB of RAM.

To put it another way; it might very well be that you have a memory leak. If you can identify where the memory starts to grow, you are on your good way to find out why. :-)

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