tomcat启动一段时间后自动挂掉。。。
系统：CentOS5.5 x86
jdk ：jdk6-30 x86
tomcat: tomcat6.0.35 for linux
内存：1GB
SWAP：0
tongcat中log日志：
- Java code
## A fatal error has been detected by the Java Runtime Environment:## SIGSEGV (0xb) at pc=0xb6fd140e, pid=1920, tid=2687040400## JRE version: 6.0_30-b12# Java VM: Java HotSpot(TM) Client VM (20.5-b03 mixed mode linux-x86 )# Problematic frame:# V [libjvm.so+0x2ac40e] JVM_ArrayCopy+0xce## An error report file with more information is saved as:# /opt/www/hs_err_pid1920.log## If you would like to submit a bug report, please visit:# http://java.sun.com/webapps/bugreport/crash.jsp#
hs_err_pid1920.log日志：
- Java code
## A fatal error has been detected by the Java Runtime Environment:## SIGSEGV (0xb) at pc=0xb6fd140e, pid=1920, tid=2687040400## JRE version: 6.0_30-b12# Java VM: Java HotSpot(TM) Client VM (20.5-b03 mixed mode linux-x86 )# Problematic frame:# V [libjvm.so+0x2ac40e] JVM_ArrayCopy+0xce## 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 (0x0981c000): JavaThread "com.mchange.v2.async.ThreadPoolAsynchronousRunner$PoolThread-#0" daemon [_thread_in_vm, id=1936, stack(0xa023f000,0xa0290000)]siginfo:si_signo=SIGSEGV: si_errno=0, si_code=1 (SEGV_MAPERR), si_addr=0x00000008--------------- P R O C E S S ---------------Other Threads: 0x09112000 VMThread [stack: 0xa0836000,0xa08b7000] [id=1922] 0x09139000 WatcherThread [stack: 0xa05ae000,0xa062f000] [id=1928]VM state:not at safepoint (normal execution)VM Mutex/Monitor currently owned by a thread: NoneHeap def new generation total 6528K, used 3723K [0xa0ba0000, 0xa12b0000, 0xa60f0000) eden space 5824K, 58% used [0xa0ba0000, 0xa0ef0958, 0xa1150000) from space 704K, 46% used [0xa1150000, 0xa11a24a8, 0xa1200000) to space 704K, 0% used [0xa1200000, 0xa1200000, 0xa12b0000) tenured generation total 14436K, used 11150K [0xa60f0000, 0xa6f09000, 0xb0ba0000) the space 14436K, 77% used [0xa60f0000, 0xa6bd3a18, 0xa6bd3c00, 0xa6f09000) compacting perm gen total 27392K, used 27324K [0xb0ba0000, 0xb2660000, 0xb4ba0000) the space 27392K, 99% used [0xb0ba0000, 0xb264f198, 0xb264f200, 0xb2660000)No shared spaces configured.Code Cache [0xb4c2f000, 0xb5027000, 0xb6c2f000) total_blobs=1706 nmethods=1541 adapters=100 free_code_cache=29408960 largest_free_block=256VM Arguments:jvm_args: -Djava.util.logging.config.file=/opt/www/tomcat6_1/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djava.endorsed.dirs=/opt/www/tomcat6_1/endorsed -Dcatalina.base=/opt/www/tomcat6_1 -Dcatalina.home=/opt/www/tomcat6_1 -Djava.io.tmpdir=/opt/www/tomcat6_1/temp java_command: org.apache.catalina.startup.Bootstrap startLauncher Type: SUN_STANDARDEnvironment Variables:JAVA_HOME=/opt/soft/jdk1.6.0_30CLASSPATH=/opt/www/tomcat6_1/bin/bootstrap.jarPATH=/usr/kerberos/bin:/usr/local/bin:/bin:/usr/bin:/opt/soft/jdk1.6.0_30/bin:/home/zoutuo/binLD_LIBRARY_PATH=/opt/soft/jdk1.6.0_30/jre/lib/i386/client:/opt/soft/jdk1.6.0_30/jre/lib/i386:/opt/soft/jdk1.6.0_30/jre/../lib/i386SHELL=/bin/bashSignal Handlers:SIGSEGV: [libjvm.so+0x469da0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGBUS: [libjvm.so+0x469da0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGFPE: [libjvm.so+0x38bdd0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGPIPE: [libjvm.so+0x38bdd0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGXFSZ: [libjvm.so+0x38bdd0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGILL: [libjvm.so+0x38bdd0], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGUSR1: SIG_DFL, sa_mask[0]=0x00000000, sa_flags=0x00000000SIGUSR2: [libjvm.so+0x38f030], sa_mask[0]=0x00000000, sa_flags=0x10000004SIGHUP: [libjvm.so+0x38ec10], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGINT: SIG_IGN, sa_mask[0]=0x00000000, sa_flags=0x00000000SIGTERM: [libjvm.so+0x38ec10], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004SIGQUIT: [libjvm.so+0x38ec10], sa_mask[0]=0x7ffbfeff, sa_flags=0x10000004--------------- S Y S T E M ---------------OS:CentOS release 5.3 (Final)uname:Linux 2.6.32-042stab044.11 #1 SMP Wed Dec 14 16:02:00 MSK 2011 i686libc:glibc 2.5 NPTL 2.5 rlimit: STACK 10240k, CORE 0k, NPROC 127162, NOFILE 1024, AS infinityload average:0.00 0.01 0.00/proc/meminfo:MemTotal: 1048576 kBMemFree: 887152 kBCached: 48452 kBActive: 148004 kBInactive: 2540 kBActive(anon): 102088 kBInactive(anon): 4 kBActive(file): 45916 kBInactive(file): 2536 kBUnevictable: 0 kBMlocked: 0 kBSwapTotal: 0 kBSwapFree: 0 kBDirty: 56 kBAnonPages: 102092 kBShmem: 4 kBSlab: 6556 kBSReclaimable: 3820 kBSUnreclaim: 2736 kBCPU:total 1 (2 cores per cpu, 1 threads per core) family 6 model 15 stepping 6, cmov, cx8, fxsr, mmx, sse, sse2, sse3, ssse3/proc/cpuinfo:processor : 0vendor_id : GenuineIntelcpu family : 6model : 15model name : Intel(R) Xeon(R) CPU 5160 @ 3.00GHzstepping : 6cpu MHz : 2992.452cache size : 4096 KBphysical id : 0siblings : 2core id : 0cpu cores : 2apicid : 0initial apicid : 0fpu : yesfpu_exception : yescpuid level : 10wp : yesflags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe syscall nx lm constant_tsc arch_perfmon pebs bts rep_good aperfmperf pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm dca lahf_lm tpr_shadowbogomips : 5984.90clflush size : 64cache_alignment : 64address sizes : 36 bits physical, 48 bits virtualpower management:Memory: 4k page, physical 1048576k(887152k free), swap 0k(0k free)vm_info: Java HotSpot(TM) Client VM (20.5-b03) for linux-x86 JRE (1.6.0_30-b12), built on Nov 10 2011 01:23:40 by "java_re" with gcc 3.2.1-7a (J2SE release)time: Fri Jan 20 21:26:30 2012elapsed time: 1022 seconds
由于字数限制，删除了上文中部分内容。请问tomcat为什么会挂掉？是运行一段时间后自动挂的。。。
我的catalina.properties文件是这样设置的：
- Java code
JAVA_OPTS="-server -Xms800m -Xmx800m -XX:PermSize=64M -XX:MaxNewSize=256m -XX:MaxPermSize=128m -Djava.awt.headless=true"
请问有什么不妥之处？
[解决办法]
兄弟我猜下 是不是你的jre有问题啊
[解决办法]
这个可能是JVM在优化的时候造成了问题，推荐下面的帖子:
http://seanhe.iteye.com/blog/905997
[解决办法]
可以做下负载均衡
[解决办法]
我内存还有一大半没有使用，JVM就已经说内存不足了，是怎么回事？我的“tomcat6_1/bin/catalina.sh”里面加了个参数：JAVA_OPTS="-server -Xms128M -Xmx128M -Xss128k -XX:+AggressiveOpts -XX:+UseParallelGC -XX:+UseBiasedLocking -XX:PermSize=64M -XX:MaxPermSize=128m"，我这机器这么配置有什么问题吗？
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jvm的内存不是你操作系统的内存，
是不是java某段代码有问题啊，可能是你的某个容器的开辟的空间太小，而你装入的东西超过容器的大小，