permgen

问题 I am working in Windows Environment. And I am getting this error everytime as I am working with tomcat- Apr 30, 2012 5:30:37 PM org.apache.catalina.core.StandardWrapperValve invoke SEVERE: Servlet.service() for servlet default threw exception java.lang.OutOfMemoryError: PermGen space 2012-04-30 17:30:37.719 INFO net.spy.memcached.MemcachedConnection: Connection state changed for sun.nio.ch.SelectionKeyImpl@4ae53a99 2012-04-30 17:30:37.719 INFO net.spy.memcached.MemcachedConnection:

问题 I am working with tomcat 6.0, and while I am indexing (not while i am starting tomcat), I have a permgen space error. How could I increase that space?? Thanks 回答1: You can use : -XX:MaxPermSize=128m to increase the space. But this usually only postpones the inevitable. You can also enable the PermGen to be garbage collected -XX:+UseConcMarkSweepGC -XX:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled Usually this occurs when doing lots of redeploys. I am surprised you have it using

问题 I am seeing the following messages in the logs after each redeploys. INFO: Reloading Context with name [/x1Application] has started SEVERE: The web application [/x1Application] appears to have started a thread named [Mojarra-WebResourceMonitor-1-thread-1] but has failed to stop it. This is very likely to create a memory leak. SEVERE: The web application [/x1Application] appears to have started a thread named [Hector.me.prettyprint.cassandra.connection.CassandraHostRetryService-1] but has

问题 List of Garbage Collectors: Serial GC Parallel GC Parallel Old GC Conc Mark Sweep GC G1 GC I know that the Conc Mark Sweep GC supports cleaning up PermGen when you enable the ClassUnloading JVM option. Do other Garbage Collectors support cleaning up PermGen? Reason: We use Spring, Hibernate, and Groovy that create a lot of Proxies and Perm Gen gets big. Edit: Should have mentioned that I am using Java 7. I'm aware of Java 8 removing Perm Gen and hopefully will upgrade sometime in the future.

问题 I'm meeting the dreadful PermGen:Out of memory error when deploying a web-app on TomCat. I have tried many possible solutions, but they don't work out(sometimes it works, usually it doesn't). I wonder if my config in "BuildConfig.groovy" take effect: grails.tomcat.jvmArgs = ["-Xmx1024m", "-XX:MaxPermSize=1024m"] Does anyone know someway to view the MaxPermSize actually applied by the JVM? 回答1: You can use JVisualVM in the JDK/bin directory to monitor everything about a java process. 回答2: In

问题 I am using Elasticsearch 1.5.1 and Tomcat 7 . Web application creates a TCP client instance as Singleton during server startup through Spring Framework. Just noticed that I failed to close the client during server shutdown. Through analysis on various tools like VisualVm, JConsole, MAT in Eclipse , it is evident that threads created by the elasticsearch client are live even after server( tomcat ) shutdown. Note: after introducing client.close() via Context Listener destroy methods, the

问题 If I create a Daemon thread from my program (a non-daemon process), are the heap and perm gen memory spaces shared with the new thread or is it allocated anew? If the daemon thread gets its own spaces, are the JVM memory tuning args like max heap size, etc respected in the creation of the new thread? 回答1: are the heap and perm gen memory spaces shared with the new thread or is it allocated anew? All threads (daemon status does not matter) share heap and perm memory spaces. Each thread has it

问题 I am using Spring, Struts, and Tomcat 7. After every few days I wake up to find out that the server has chocked Recently I checked all Hibernate sessions and made sure they are closed To keep the question short, this is where Tomcat hangs: java.lang.NullPointerException at com.x.x.a.PageActions.getUserPage(Unknown Source) at com.x.x.a.PageActions$$FastClassByCGLIB$$ac0e4af0.invoke(<generated>) at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework

问题 How to add PermGen space for jvm in windows? I found many link about it? but I don't understand where I must click and write new value 回答1: You can increase size of PermGen Space by using JVM param -XX:MaxPermSize and -XX:PermSize. 回答2: It is more of a Java runtime (JVM) setting than a Windows one. You configure it by adding the below parameters (example only) to your Java command line. -XX:PermSize=256m -XX:MaxPermSize=512m For example, if you were doing java -jar someapp.jar , you might

问题 I was running a java application and it's a lot of records i am bringing back form the database, i got a java.lang.OutOfMemoryError: PermGen space in the browser. Now Tomcat 7.0 wont start. The Tomcat logs showed this: Error Log [2013-04-29 16:23:05] [info] Commons Daemon procrun (1.0.10.0 64-bit) started [2013-04-29 16:23:05] [info] Running 'Tomcat7' Service... [2013-04-29 16:23:05] [info] Starting service... [2013-04-29 16:23:05] [error] %1 is not a valid Win32 application. [2013-04-29 16