我们在生产环境中以不可预测的方式面临以下问题 有时服务器在一天内或有时在一周内关闭，下面是确切的错误 dump，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

In catalina.sh the following setting has been done:

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 VM: Java HotSpot(TM) Server VM (17.0-b16 mixed mode linux-x86 )
# If you would like to submit a bug report, please visit:
#   http://java.sun.com/webapps/bugreport/crash.jsp
#

---------------  T H R E A D  ---------------

Current thread (0x23787400):  JavaThread "CompilerThread0" daemon [_thread_in_native, id=18668, stack(0x231f5000,0x23276000)]

Stack: [0x231f5000,0x23276000],  sp=0x23272e70,  free space=1f723276000k
Native frames: (J=compiled Java code, j=interpreted, Vv=VM code, C=native code)
V  [libjvm.so+0x6a9262]
V  [libjvm.so+0x2b277f]
V  [libjvm.so+0x12e03c]
V  [libjvm.so+0x12e536]
V  [libjvm.so+0x5d67d0]
V  [libjvm.so+0x2f809d]
V  [libjvm.so+0x4f65a9]
V  [libjvm.so+0x27b85f]
V  [libjvm.so+0x278043]
V  [libjvm.so+0x209767]
V  [libjvm.so+0x280f8c]
V  [libjvm.so+0x280839]
V  [libjvm.so+0x66feb6]
V  [libjvm.so+0x66959e]
V  [libjvm.so+0x57a89e]
C  [libpthread.so.0+0x5832]


Current CompileTask:
C2:3230  !   org.apache.jsp.com.common.press_jsp._jspService(Ljavax/servlet/http/HttpServletRequest;Ljavax/servlet/http/HttpServletResponse;)V (4433 bytes)


---------------  P R O C E S S  ---------------

Java Threads: ( => current thread )
  0x09a21400 JavaThread "http-8080-exec-904" daemon [_thread_in_native, id=17126, stack(SIGTERM: [libjvm.so+0x57aaf0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004
SIGQUIT: [libjvm.so+0x57aaf0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004


---------------  S Y S T E M  ---------------

OS:Red Hat Enterprise Linux Server release 5.5 (Tikanga)

uname:Linux 2.6.18-194.17.1.el5PAE #1 SMP Mon Sep 20 07:34:07 EDT 2010 i686
libc:glibc 2.5 NPTL 2.5 
rlimit: STACK 10240k, CORE 0k, NPROC 114688, NOFILE 1024, AS infinity
load average:0.39 0.54 0.38

CPU:total 2 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 11, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3

Memory: 4k page, physical 6228576k(225096k free), swap 6974456k(6974352k free)

vm_info: Java HotSpot(TM) Server VM (17.0-b16) for linux-x86 JRE (1.6.0_21-b06), built on Jun 22 2010 01:04:46 by "java_re" with gcc 3.2.1-7a (J2SE release)

time: Fri Dec 10 14:01:06 2010
elapsed time: 79552 seconds

提前致谢， 阿米特

最佳答案

为了记录(和谷歌)，这看起来像 both these错误，已在 sun 的 jdk 的 1.6u22 版本中修复。因此，首先要做的是更新您的 JVM。如果它仍然发生，并且总是发生在特定方法上，您可以使用以下 jvm 标志从编译中排除该方法(只要您知道它的性能影响):

-XX:CompileCommand=exclude,org/apache/velocity/runtime/directive/Foreach,render

(按照建议 here )。但是，请先更新您的 jvm。

关于java.lang.OutOfMemoryError:为 Chunk::new 请求了 1958536 字节。交换空间不足，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/4435819/