Former Member

Jan 07, 2008 at 12:17 AM

Javacore dump in XI

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Hello,

In our XI environment, we have two server nodes, quite offen i see lots of javacore?????????.txt is getting generated which causing /usr/sap/XIX is filled, due to this java goes down.

As a temp fix, i am removing those files and restarting java and server backs to normal.

I cheked std_serverx logs and default trace file. not able to get any concrete information about the cause of the crash. I could see this in std_serverx 'Caught OutOfMemoryError! '

we are using IBM JVM.

Below are the logs

tpd0101:xsxadm 195> grep Error std_server0.out

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 at java.net.PlainSocketImpl.socketAccept(Native Method)

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

java.lang.OutOfMemoryError

at java.io.ObjectStreamClass.lookup(ObjectStreamClass.java:356)JVMDUMP006I Processing Dump Event "uncaught", detail "java/lang/OutOfMemoryError" - Please Wait.

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 at java.net.PlainSocketImpl.socketAccept(Native Method)

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 at java.security.AccessController.doPrivileged(AccessController.java:207)

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 at com.sap.engine.core.thread.impl3.SingleThread.run(SingleThread.java:170)

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 at java.net.PlainSocketImpl.socketAccept(Native Method)

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 at java.net.PlainSocketImpl.socketAccept(Native Method)

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666 at java.net.PlainSocketImpl.socketAccept(Native Method)

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

java.lang.OutOfMemoryError

FATAL: Caught OutOfMemoryError! Node will exit with exit code 666java.lang.OutOfMemoryError

tpd0101:xixadm 196> ls

tpd0101:xixadm 109> grep dump javacore.20080102.085845.4885.txt

0SECTION TITLE subcomponent dump routine

0SECTION GPINFO subcomponent dump routine

1XHERROR2 Register dump section only produced for SIGSEGV, SIGILL or SIGFPE.

0SECTION ENVINFO subcomponent dump routine

2CIUSERARG -Xdump:heap:none

2CIUSERARG -Xdump

0SECTION MEMINFO subcomponent dump routine

0SECTION LOCKS subcomponent dump routine

0SECTION THREADS subcomponent dump routine

2XMFULLTHDDUMP Full thread dump J9SE VM (J2RE 1.4.2 IBM J9 2.2 Linux amd64-64 build 20061121_1035_LHdSMr, native threads):

0SECTION CLASSES subcomponent dump routine

3CLTEXTCLASS com/seeburger/xi/module/dump/PayloadDump(0x0000002B32F0A0D8)

0SECTION Javadump End section

tpd0101:xixadm 110> vi

0SECTION MEMINFO subcomponent dump routine

NULL =================================

1STHEAPFREE Bytes of Heap Space Free: 0SECTION MEMINFO subcomponent dump routine

NULL =================================

1STHEAPFREE Bytes of Heap Space Free: 1f57158

1STHEAPALLOC Bytes of Heap Space Allocated: 80000000

NULL

1STHEAPALLOC Bytes of Heap Space Allocated: 80000000

NULL

Can you please advice me on this.

Thanks,

Venkatesh