Out Of Memory Error In Tomcat
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Tomcat Java.lang.outofmemoryerror: Java Heap Space
a minute: Sign up java out of memory error-heap space up vote 2 down vote favorite 1 I'm developing web application in jsp/servlet,i had an issue with netbeans and Java. My program needs large data process. So I used -Xmx512m to increase the maximum heap size via Tools -> Servers -> on the Platform tab there is a VM option below out of memory error in java Java Platform. Then it works fine.. Now my issue is i'm building the WAR file, directly deployed and run in my another machine Tomcat for demo, here i'm facing the same issue java out of memory error-heap space i also tried with environment variable set CATALINA_OPTS=-Xms512m -Xmx512m this also didn't help me how to resolve this issue?, Please point me to the right direction java tomcat out-of-memory share|improve this question asked Sep 11 '12 at 9:47 Sathish 1,67131642 1 Make it -Xmx1024m and try again. –duffymo Sep 11 '12 at 9:49 where in the environment variable? –Sathish Sep 11 '12 at 9:50 Edit the start script. –duffymo Sep 11 '12 at 9:53 Finally i found the solution for the issue see my answer below –Sathish Sep 11 '12 at 11:15 add a comment| 3 Answers 3 active oldest votes up vote 9 down vote Try to set PermSizeand MaxPermSize values. and that should be set at tomcat startup in Catalina.bat and then stop and start using this script. set CATALINA_OPTS=-server -Xmx1024m -Xmx1024m -XX:PermSize=512m -XX:MaxPermSize=512m http://javahowto.blogspot.co.uk/2006/06/6-common-errors-in-setting-java-hea
This Site Careers Other all forums Forum: Tomcat Tomcat crashes with Out of Memory Error! RashMin Gadhavi Greenhorn Posts: 15 posted 4 years ago Dear Experts, I seek your advise/solution for one of out of memory error java heap space my ongoing production problem. My tomcat in production machine crashes abruptly with logs java.lang.outofmemoryerror thrown from the uncaughtexceptionhandler in thread "main" in "catalina.out" as "Out of Memory". Here is some useful information for you. OS:Red Hat Enterprise Linux Server release 5 tomcat crash (Tikanga) Kernel \r on an \m bash# uname -a Linux xxxx 2.6.18-8.el5 #1 SMP Fri Jan 26 14:15:21 EST 2007 i686 i686 i386 GNU/Linux Tomcat version: Server version: Apache Tomcat/6.0.29 Server built: http://stackoverflow.com/questions/12366989/java-out-of-memory-error-heap-space July 19 2010 1458 Server number: 6.0.0.29 OS Name: Linux OS Version: 2.6.18-8.el5 Architecture: i386 JVM Version: 1.5.0_01-b08 JVM Vendor: Sun Microsystems Inc. Tomcat CATALINA.SH settings:JAVA_OPTS="-Djava.awt.headless=true -Dfile.encoding=UTF8 -server -Xms2048m -Xmx2048m -XX:NewSize=512m -XX:MaxNewSize=512m -XX:PermSize=512m -XX:MaxPermSize=512m -XX:+DisableExplicitGC -XX:+UseConcMarkSweepGC -XX:+UseParNewGC" Logs in "catalina.out" Exception in thread "CompilerThread0" java.lang.OutOfMemoryError: requested 1356912 bytes for Chunk::new. Out of swap space? 1. Is there any thing to do with application? 2. Does it https://coderanch.com/t/561788/Tomcat/Tomcat-crashes-Memory-Error seems OS/Hardware problem? (By the way server has 3Gig RAM and its IBM Blade server) Regards, Rashmin Gadhavi William Brogden Author and all-around good cowpoke Rancher Posts: 13074 6 posted 4 years ago How long does it run before crashing? -or- How many requests processed before crashing? If this was my problem I would be using the Tomcat Management App to frequently check on available memory, number of request threads running, number of sessions, etc. Bill RashMin Gadhavi Greenhorn Posts: 15 posted 4 years ago First of all, thanks a lot William for your response. 1. How long does it run before crashing? - Its random 2. How many requests processed before crashing - I have not measured yet (How to measure I do not know) Also I logged in to Tomcat manager section and got following information as you suggested. jk-8409 *************** Max threads: 200 Current thread count: 20 Current thread busy: 11 Max processing time: 4398274 ms Processing time: 5746.116 s Request count: 3223 Error count: 3 Bytes received: 2.24 MB Bytes sent: 58.79 MB More detailed status of my application which is hosted in "webapps" directory of tomcat. **
in Atlassian Cloud apps, the contents of this article cannot be applied to Atlassian Cloud applications. Purpose Java applications like JIRA, Crowd and Confluence run in a "Java virtual machine" (JVM), instead https://confluence.atlassian.com/confkb/how-to-fix-out-of-memory-errors-by-increasing-available-memory-154071.html of directly within an operating system. When started, the Java virtual machine is allocated a certain amount of memory, which it makes available to applications like Confluence. By default, Java virtual machines are http://www.java67.com/2013/08/guide-of-javalangoutofmemoryerror-java-heap-space-tomcat-eclipse-minecraft-jboss.html allocated 64Mb of memory, no matter how many gigabytes of memory your server may actually have available. 64Mb is inadequate for most Confluence installations, and so this needs to be increased. Diagnosis out of Expand to see diagnosis section Determine type of error message Look in the atlassian-confluence.log to see which type of OutOfMemory Error you're receiving. There are three common messages: Heap Space Perm Gen Space GC Overhead This document discusses increasing memory to address PermGen and Heap space errors. Follow the links above to assess root causes for each issue. For GC Overhead, refer to Confluence Crashes Due to out of memory 'java.lang.OutOfMemoryError GC overhead limit exceeded'. Determine Confluence's usage patterns In Confluence, go to Confluence Administration > System Information , and look at the memory graph during times of peak usage: This server has been allocated a maximum of 650Mb and a minimum of 256m. You can see the minimum displayed here; if you're trying to see whether your settings are being picked up, this is where to look. Determine available system memory On Windows From the Close Programs Dialogue (Press ctrl-alt-delete), select the Performance tab: The amount marked Available is the amount in kilobytes you have free to allocate to Confluence. On this server we should allocate at most 214Mb. On Linux Run cat /proc/meminfo to view the memory usage. Setting the -Xmx above the available amount on the server runs the risk of OutOfMemoryErrors due to lack of physical memory. If that occurs the system will use swap space, which greatly decreases performance. Guidance The default values supplied with Confluence stand-alone are sufficient for most installations. Please refer to Managing Application Server Memory Settings and Server Hardware Requirements Guide for a discussion. Solution Step 1: Increase Available Memory We aren't really able to give a concrete reco
you are getting java.lang.OutOfMemoryError: Java heap space and run out of ideas on what to do, especially if you are user of any Java application and not the programmer or developer, this could be a tricky situation to be in. I receive lots of emails from Minecraft user ( a popular Java game), along with junior developers who are using Tomcat, JBoss, Websphere, Android user, who uses Android apps and several other Swing based Java desktop application user complaining about java.lang.OutOfMemoryError: Java heap space in there Mobile or Laptop. For users, there is not much they can do, but to restart the application. When you restart your application, previous memory get reclaimed by OS and it's a fresh start for your application, but you may lose data, which is not saved, especially if you are playing Java games like Minecraft. For Junior programmers, they have some options, but hey need to understand that all this web and application server and IDEs like Eclipse, IntelliJ and Netbeans are Java programs and can be configured to run with more memory.
You just need to find out there startup script, from where they are launching java command to start the process and modify value of -Xmx JVM option to a higher value, subject to your machine configuration or simply add -Xmx JVM option if it's not already there.
Before doing this it's better to