小编Ami*_*mit的帖子

我们在生产环境中以不可预测的方式面临以下问题,有时服务器在一天或有时在一周内停机,下面是确切的错误转储,下面是服务器的设置.

JDK: jdk1.6.0_21
Server: Tomcat 7.0.2
OS: Red Hat Enterprise Linux Server release 5.5

在catalina.sh中,已完成以下设置:

JAVA_OPTS="-Xms1024M -Xmx1536M -XX:+HeapDumpOnOutOfMemoryError -XX:+AggressiveOpts 
-XX:-DisableExplicitGC  -XX:AdaptiveSizeThroughPutPolicy=0  
-XX:+UsePSAdaptiveSurvivorSizePolicy 
-XX:+UseAdaptiveGenerationSizePolicyAtMinorCollection  
-XX:+UseAdaptiveGenerationSizePolicyAtMajorCollection -XX:PermSize=768M 
-XX:MaxPermSize=768M    -XX:+PrintGCDetails -Xloggc:/tmp/gcLogs.txt"

export CATALINA_OPTS="-Dcom.sun.management.jmxremote.port=22222 
-Dcom.sun.management.jmxremote.authenticate=true -Dcom.sun.management.jmxremote.ssl=false 
-Dcom.sun.management.jmxremote.password.file=/jakarta-tomcat7/apache-tomcat-7.0.2/conf
/jmxremote.password -Dcom.sun.management.jmxremote.access.file=/jakarta-tomcat7/apache-
tomcat-7.0.2/conf/jmxremote.access"

错误跟踪: -

#
# A fatal error has been detected by the Java Runtime Environment:
#
# java.lang.OutOfMemoryError: requested 1958536 bytes for Chunk::new. Out of swap space?
#
#  Internal Error (allocation.cpp:215), pid=18658, tid=589781904
#  Error: Chunk::new
#
# JRE version: 6.0_21-b06
# Java …