Java HotSpot(TM) 64-Bit Server VM warning: INFO: os::commit_memory(0x00000000f3700000, 176160768, 0)

当你启动Tomcat的时候，报错内存不足.

# There is insufficient memory for the Java Runtime Environment to continue.

# Native memory allocation (mmap) failed to map 176160768 bytes for committing reserved memory.

# An error report file with more information is saved as:

$ sudo find / -name "catalina.sh"
Password:
find: /dev/fd/3: Not a directory
find: /dev/fd/4: Not a directory
/Users/zhang/Downloads/apache-tomcat-6.0.35/bin/catalina.sh

第一种方式:

直接在里面加入一行 :

JAVA_OPTS="-server -Xms100m -Xmx1024m -XX:PermSize=100m -XX:MaxPermSize=1024m"

注意：数字要一一对应,单位是M兆

第二种方式:

catalina.sh有以下代码：注意:(setenv.sh)

//...
# Ensure that any user defined CLASSPATH variables are not used on startup,
# but allow them to be specified in setenv.sh, in rare case when it is needed.
CLASSPATH=

if [ -r "$CATALINA_BASE/bin/setenv.sh" ]; then
  . "$CATALINA_BASE/bin/setenv.sh"
elif [ -r "$CATALINA_HOME/bin/setenv.sh" ]; then
  . "$CATALINA_HOME/bin/setenv.sh"
fi
//...

在当前目录下(/Users/zhang/Downloads/apache-tomcat-6.0.35/bin/)创建setenv.sh文件，写入

【下面的大小根据项目更改】

JAVA_OPTS="-server -Xms100m -Xmx1024m -XX:PermSize=100m -XX:MaxPermSize=1024m"

-XX:PermSize<size> - Set initial PermGen Size.
-XX:MaxPermSize<size> - Set the maximum PermGen Size.

重启tomcat