IDM/eDir "eat" all the memory - IDM 4.7.2

Hi

After a upgrade from IDM 4.7.1 SE/ eDir 9.1.2 to IDM 4.7.2 SE / eDir 9.1.3 the xNDS/DHOSTS "Eat" up all the memory 12,5 GB in one week

This memory bug have been there before, is it back?

Best regards
Michael
Parents
  • On 4/9/2019 11:26 AM, mJg2XW wrote:
    >
    > Hi
    > Windows Server 2016


    I had a client where that was happening and then it stopped. No good
    troubleshooting tools.

    One thing we did was use jmap to dump the Java JVM and it was pretty
    small, only 150Megs, when the dhost.exe was at 12GB, so it was not 'IDM'
    at fault.

    You can do this to test. find a JDK of the similar version to the one
    eDir/IDM is using. (cd to the jre/bin for eDir and try java -version
    then get a JDK that matches. Like 1.8 for 1.8. (Exact rev does not seem
    important).

    Then get the PID (Process ID) from task manager for DHost.

    Then run
    \path\to\jdk\jre\bin\jmap -dump:format=b,file=c:\temp\eDirDump.hpof
    12345 (where 12345 is the PID number)

    Then look at the size of the dump. It will at least rule out one
    possibility.

    Then look in iMonitor at the Database cache you are set to for eDir on
    that box.

    So if you have a 20GB dib and you are hard allocated (Not dynamic) to
    15GB of cache, and you find eDir using all 15GB, that is not a bug, it
    is normal.

    So add IDM's JVM contribution DIB cache and tell us how that compares
    to total memory usage.

    I have one client who complains when DIB gets to 5GB but he has 512MB
    for JVM heap, and 4GB for DIB cache, so really .5GB is not a lot of
    memory leakage, as opposed to proper usage.


  • Geoffrey Carman wrote:

    > I have one client who complains when DIB gets to 5GB but he has 512MB for JVM
    > heap, and 4GB for DIB cache, so really .5GB is not a lot of memory leakage,
    > as opposed to proper usage.


    ....and all the edir code and modules other than vrdim need to run in some
    memory, too.

    --
    http://www.is4it.de/en/solution/identity-access-management/

    (If you find this post helpful, please click on the star below.)
  • On 4/9/2019 12:17 PM, Lothar Haeger wrote:
    > Geoffrey Carman wrote:
    >
    >> I have one client who complains when DIB gets to 5GB but he has 512MB for JVM
    >> heap, and 4GB for DIB cache, so really .5GB is not a lot of memory leakage,
    >> as opposed to proper usage.

    >
    > ...and all the edir code and modules other than vrdim need to run in some
    > memory, too.


    Right, binaries, etc, for the actual program.


  • We have the same issue at a customer.
    Working with support on it but no resolution yet unfortunately.
    Have to kill and start edirectory every day.
  • Which RPM version of the JDBC driver are you guys using, if any? I had a
    sad encounter with the one that came with 4.7 SP2, and then the 4.2.0.0
    version (latest out there), both having pretty rotten bugs. The 4.1.0.1
    (or whatever was just before 4.2.0.0) version seems to be working well
    enough, though.

    The first version had constantly-growing state files; that was super-fun.
    The 4.2.0.0 version has a known issue where the driver constantly resync
    on the Publisher channel, causing the state files to constantly be rewritten.

    I do not know that those would cause memory issues necessarily, but my
    customer was of course not on windows (SLES 12 SP4, eDir 9.1 SP3) so it's
    not exactly comparing apples to apples.

    Restarting windows services once per day doesn't sound that unusual, does
    it? Sorry... I couldn't help it.

    --
    Good luck.

    If you find this post helpful and are logged into the web interface,
    show your appreciation and click on the star below.

    If you want to send me a private message, please let me know in the
    forum as I do not use the web interface often.
  • I have also this issue with one customer (IDM 4.6.2 on Windows 2012), we restart servers every day.
    At another customer the issue disappeared with eDir patch and IDM 4.6.2 and now still looks ok with IDM 4.7.2
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