error java lang outofmemoryerror java heap space

takes more time, and the execution time assigned by the application is less. The heap size should not exceed 80% of the available physical memory. Generally, the-XMS and-xmx options must be set to the same, and-xmn is the-xmx value of 1/4.The-XMS-xmn setting of heap size should not exceed the physical memory size. Otherwise, the system prompts "error occurred du

Http://blog.csdn.net/jxzxm1_2/article/details/2499751 An exception occurs when a Java program is used to query a large amount of data from the database:Java. Lang. outofmemoryerror: Java heap SpaceThis exception is thrown if 98% is used for GC and the available

Take the tomcat environment as an example. Other WEB servers, such as jboss and weblogic, share the same principle.1. java. lang. OutOfMemoryError: PermGen spacePermGen space stands for Permanent Generation space, which is the Permanent storage area of the memory,This memory

MyCAT reports java. lang. OutOfMemoryError: Java heap space In the morning, my colleague reported that mycat was suspended again. It was estimated that the memory was still overflow and I checked the

tab. The following two items are displayed: initial memory pool and maximum memory pool. initial memory pool: memory size set for initialization. Maximum memory pool: The maximum memory size. Set the initial memory pool to 64 mb .!!! Success !!! After the configuration is complete, press OK and restart tomcat. You will find that the JVM available memory in Tomcat has changed (anyoneking). Take the Tomcat environment as an example. Other Web servers, such as JBoss, webLogic is the same principle

Exception in thread "main" java. lang. OutOfMemoryError: Java heap space, exceptioninthreadException in thread "main" java. lang.

Source: http://apps.hi.baidu.com/share/detail/23485743Problem descriptionException in thread "Main"Java. Lang. outofmemoryerror: Java heap Space Solution [go]It has always been known that JVM