Tomcat内存溢出 tomcat outofmemoryerror permgen space

最新推荐文章于 2025-08-09 16:44:47 发布

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本文介绍如何找到catalina.sh文件并修改JAVA_OPTS变量来设置Tomcat的内存配置。包括设置堆内存大小、永久代内存大小及禁用显示垃圾回收等。

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1. Find where is Cataline.sh

2. Append the following memory settings to a JAVA_OPTS variable and add it on top of the catalina.sh content.

JAVA_OPTS="-Dfile.encoding=UTF-8 -server -Xms512m -Xmx1024m
-XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=256m 
-XX:MaxPermSize=256m -XX:+DisableExplicitGC"

catalina.sh
#   JSSE_HOME       (Optional) May point at your Java Secure Sockets Extension
#                   (JSSE) installation, whose JAR files will be added to the
#                   system class path used to start Tomcat.
#
#   CATALINA_PID    (Optional) Path of the file which should contains the pid
#                   of catalina startup java process, when start (fork) is used
#
# $Id: catalina.sh 609438 2008-01-06 22:14:28Z markt $
# -----------------------------------------------------------------------------
 
JAVA_OPTS="-Dfile.encoding=UTF-8 -server -Xms512m -Xmx1024m 
-XX:NewSize=256m -XX:MaxNewSize=256m -XX:PermSize=256m 
-XX:MaxPermSize=256m -XX:+DisableExplicitGC"
 
# OS specific support.  $var _must_ be set to either true or false.
cygwin=false
os400=false
darwin=false
case "`uname`" in
CYGWIN*) cygwin=true;;
OS400*) os400=true;;
Darwin*) darwin=true;;
esac
 
# resolve links - $0 may be a softlink
PRG="$0"