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  • 1.  Migration to ACEv12 (Memory concerns)

    Posted Wed April 06, 2022 12:59 PM
    Hi,
    Does anybody of you in this group has made a comparative study of the differences between ACEv12 and IIBv10 in term of memory consumption during deployment of BARs and message processing workload ?
    Currently, I am involved in a migration project were we are seeing a significant increase in the memory consumed when we deploy BARs to ACEv12.0.2 server.
    We have a development server that is running on IIBv10 with a total of 8GB of memory. With that server (restarted only one time before starting the working day) all the developers are able to make deployments of theirs BARs during all the day without hitting a problem of memory.
    But now, with ACEv12, it seems that to be able to deploy without any problem during all the day we would need a total of 24GB of RAM.
    We understand that there is a big change of architecture in the product that could explain the increase in memory consumption, but such difference seems more a memory leak.
    Anyway, I am interest in such studies or input to understand the differences.
    Many thanks
    Best regards
    A.Anglade

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    AAnglade
    IT Specialist Madrid
    Spain

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  • 2.  RE: Migration to ACEv12 (Memory concerns)

    Posted Thu April 28, 2022 10:14 AM
    Hello,
    This is highly irregular.  ACE and IIB memory usage should be pretty close, usually within just a few percent of each other.  A tripling of memory is not right.  There is something wrong here.  Please open a case with support to investigate.

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    MATTHEW SEGALL
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  • 3.  RE: Migration to ACEv12 (Memory concerns)

    Posted Thu April 13, 2023 04:48 AM

    Hello AAnglade,
    Have you got any resolution for the above ? we are facing a similar issue and the memory seems to grow after every deployment(eventually leading to an exhaustion). This seems to be happening only for Linux host , on Windows server it is okay



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    Thomas Thomas
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  • 4.  RE: Migration to ACEv12 (Memory concerns)

    Posted Fri April 14, 2023 10:17 AM

    Hello Thomas
    I remember that we had to disable statistics to see a behavior similar to IIBv10 regarding consumption of memory during deployment. 
    We only used linux server and in our case it fixed the problem. 
    Have tried this test ?
    Regards
    Armand



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    Armand
    TAM Specialist
    IBM
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  • 5.  RE: Migration to ACEv12 (Memory concerns)

    IBM Champion
    Posted Fri April 14, 2023 01:57 AM

    I have also seen a memory increase when going to ACEv12 on windows.
    One of the solves was configuring ACE to free the master parsers.

    https://community.ibm.com/community/user/integration/discussion/is-mqsi-free-master-parsers-environment-variable-available-for-ace




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    Regards
    Matthias Blomme
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