Error 500 java heap space

Error 500 java heap space

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    Occasionally, we run into this error while running queries with 1 million + records. We would like to make sure we have optimum settings in place to minimise the possibility of this happening. I’m a coder, used to working with a specialist server guy who takes care of server-related issues. However, it looks like I finally need to get properly up to speed on all this because I don’t have this luxury now.

    I’ve included some details of our setup below. Can someone suggest some basic first steps to making sure things are configured as well as possible?

    Java Settings in CF Administrator:

    Minimum JVM Heap Size: 2048

    Maximum JVM Heap Size: 3072

    -server -Dsun.rmi.dgc.client.gcInterval=86400000 -Dsun.rmi.dgc.server.gcInterval=86400000 -XX:+UseParNewGC -XX:NewSize=96m -XX:MaxNewSize=256m -XX:SurvivorRatio=6 -XX:MaxPermSize=256m -XX:PermSize=256m -Dcoldfusion.home= -Dorg.eclipse.jetty.util.log.class=org.eclipse.jetty.util.log.JavaUtilLog -Duser.language=en -Dcoldfusion.rootDir= -Dcoldfusion.libPath=/lib -Dorg.apache.coyote.USE_CUSTOM_STATUS_MSG_IN_HEADER=true -Dcoldfusion.jsafe.defaultalgo=FIPS186Random

    Version	11,0,05,303668
    Tomcat Version	7.0.68.0
    Edition	Enterprise
    Operating System	Windows Server 2012
    OS Version	6.2
    Update Level	C:/ColdFusion11/cfusion/lib/updates/chf11000013.jar
    Adobe Driver Version	5.1.3 (Build 000094)
    JVM Details
    Java Version	1.7.0_51

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    1 Correct answer

    Well, 2g heap may well be too small for a query of a million records. Depends on the number of cols retrieved and their size. (And someone might first question if that is a wise/necessary query, but I’ll assume for now that you have your reasons.)

    So a first step to the answer you seek (what heap size is optimal) is to ask how much memory is on this *system*, and how much is typically free? (outside of CF, I mean.) Could you double or triple the CF heap max? Does it make the error go away? If so

    /t5/coldfusion-discussions/help-error-500-0-java-heap-space/m-p/10548617#M182925 Jul 28, 2019 Jul 28, 2019

    Well, 2g heap may well be too small for a query of a million records. Depends on the number of cols retrieved and their size. (And someone might first question if that is a wise/necessary query, but I’ll assume for now that you have your reasons.)

    So a first step to the answer you seek (what heap size is optimal) is to ask how much memory is on this *system*, and how much is typically free? (outside of CF, I mean.) Could you double or triple the CF heap max? Does it make the error go away? If so, you may be done.

    Better would be to have something monitoring CF (not just heap use, but requests and much more), because I doubt your request in question is ALL that this CF processes, right? Other factors would influence what the «best» heap size is.

    Also, FWIW, you have added many non-standard jvm args, which others may have suggested.. You might consider removing then to see if that helps. I’ve seen it happen.

    This is another benefit of monitoring: to watch how things go based on changes made. Since you’re on cf11 enterprise, you do have the cf server monitor available.

    That said, check if IT may well be *contributing to the heap problem yes, it can happen. Check the cf admin «monitoring settings» page (in Enterprise only) to see if the monitor’s «start memory monitoring» is enabled. If it is, turn it off and see if that stops the errors.

    Finally, another monitoring option is FusionReactor, especially BECAUSE many are scared off of the CF Enterprise Server Monitor. It has many advantages over the CFSM, and has a 14-day free trial, if you need better monitoring for this or other problems. And those on cf2018 also have its new PMT.

    But let us know if the other suggestions above get you going. And besides having back and forth here, there are «server guys» available to help by the hour or less, for such challenges. See my list of them at cf411.com/cftrouble.

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    Error 500-Internal Server Error Java.Lang.Outofmemoryerror Java Heap Space

    

    We have collected for you the most relevant information on Error 500-Internal Server Error Java.Lang.Outofmemoryerror Java Heap Space, as well as possible solutions to this problem. Take a look at the links provided and find the solution that works. Other people have encountered Error 500-Internal Server Error Java.Lang.Outofmemoryerror Java Heap Space before you, so use the ready-made solutions.

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    https://forums.pentaho.com/threads/68806-java-lang-OutOfMemoryError-Java-heap-space-How-to-solve
    Sep 12, 2016 · Hi, I’ve tried to find some info about this on the forum, but wasn’t successful with this. After I finally got my job running properly with the help of Sven and Matt I came accross another problem when running the job on huge tables: java.lang.OutOfMemoryError: Java heap space 2009/03/30 15:38:00 — Table output.0 — Prepared statement : INSERT INTO rd_product_sales (customer_id, …

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    https://github.com/OraOpenSource/OXAR/issues/174
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    ‘java.lang.OutOfMemoryError: Java heap space’ HTTP 500 .

    https://success.trendmicro.com/solution/1114920-java-lang-outofmemoryerror-java-heap-space-error-message-appears-when-exporting-configuration-fro
    Dec 30, 2019 · Possible values for the heap size parameter are 256, 512, 1024, etc. If increasing the size to 512 MB does not resolve the issue, please choose a higer value, for example «-Xmx1024m».

    Error 500-Internal Server Error Java.Lang.Outofmemoryerror Java Heap Space Fixes & Solutions

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