On 12/05/2012 10:11 AM, [email protected] wrote: > today we discovered teh following error in the Djigzo logfile: > > > JVM appears hung: Timed out waiting for signal from JVM. > JVM did not exit on request, terminated > JVM received a signal SIGKILL (9). > Launching a JVM... > java version "1.6.0_24" > OpenJDK Runtime Environment (IcedTea6 1.11.5) > (6b24-1.11.5-0ubuntu1~10.04.2) > OpenJDK 64-Bit Server VM (build 20.0-b12, mixed mode) > > WrapperManager: Initializing... > > Phoenix 4.2 > > configure DjigzoServiceImpl. > Configuring Djigzo Service. > > **** Begin system properties **** > -- listing properties -- > java.runtime.name=OpenJDK Runtime Environment > sun.boot.library.path=/usr/lib/jvm/java-6-openjdk/jre/lib/a... > java.vm.version=20.0-b12 > java.vm.vendor=Sun Microsystems Inc. > java.vendor.url=http://java.sun.com/ > path.separator=: > java.vm.name=OpenJDK 64-Bit Server VM > file.encoding.pkg=sun.io > user.country=US > sun.java.launcher=SUN_STANDARD > sun.os.patch.level=unknown > wrapper.key=4V2wL5mowdmofv_Z > java.vm.specification.name=Java Virtual Machine Specification > user.dir=/usr/share/djigzo > wrapper.version=3.4.1 > java.runtime.version=1.6.0_24-b24 > java.awt.graphicsenv=sun.awt.X11GraphicsEnvironment > phoenix.home=/usr/share/djigzo/james-2.3.1 > djigzo.charset-alias-provider.properties=conf/charset-aliases.properties > java.endorsed.dirs=/usr/lib/jvm/java-6-openjdk/jre/lib/e... > os.arch=amd64 > java.io.tmpdir=/tmp > line.separator= > > java.vm.specification.vendor=Sun Microsystems Inc. > wrapper.cpu.timeout=10 > os.name=Linux > sun.jnu.encoding=UTF-8 > java.library.path=./wrapper/ > wrapper.jvm.port.max=31999 > java.specification.name=Java Platform API Specification > java.class.version=50.0 > java.naming.provider.url=djigzo > sun.management.compiler=HotSpot 64-Bit Tiered Compilers > wrapper.pid=1939 > os.version=2.6.32-45-server > networkaddress.cache.ttl=300 > wrapper.java.pid=6134 > user.home=/usr/share/djigzo > user.timezone=Europe/Berlin > wrapper.jvmid=2 > java.awt.printerjob=sun.print.PSPrinterJob > java.specification.version=1.6 > file.encoding=UTF-8 > user.name=djigzo > java.class.path=james-2.3.1/bin/phoenix-loader.jar:wr... > mail.mime.decodetext.strict=false > java.naming.factory.initial=tyrex.naming.MemoryContextFactory > java.vm.specification.version=1.0 > wrapper.port=15012 > sun.arch.data.model=64 > java.home=/usr/lib/jvm/java-6-openjdk/jre > sun.java.command=org.apache.avalon.phoenix.launcher.Da... > djigzo.smime.outlook2010skiworkaround.enable=false > java.specification.vendor=Sun Microsystems Inc. > user.language=en > java.vm.info=mixed mode > java.version=1.6.0_24 > java.ext.dirs=james-2.3.1/lib:./james-2.3.1/tools/lib > sun.boot.class.path=/usr/lib/jvm/java-6-openjdk/jre/lib/r... > java.vendor=Sun Microsystems Inc. > file.separator=/ > java.vendor.url.bug=http://java.sun.com/cgi-bin/bugreport... > sun.cpu.endian=little > sun.io.unicode.encoding=UnicodeLittle > mail.mime.parameters.strict=false > wrapper.native_library=wrapper > wrapper.jvm.port.min=31000 > sun.cpu.isalist= > **** End system properties **** > > spring config file: conf/spring/djigzo.xml > additional spring config dir: conf/spring/spring.d/ > log4j config file: conf/log4j.properties > > Obviously Djigzo decided to restart but the strange thing is that it was > working normal at this point. I have checked the logfiles and it looks > like happend some times already but with increasing frequency. > > Any idea what could be wrong?
The djigzo backend is started by the Java wrapper process. The Java wrapper process monitors the JVM to see whether the JVM is still running and if not it will restart it. Somehow the JVM was hanging or the Java wrapper incorrectly assumed it was hanging and restarted the backend. I have seen this happen when the gateway runs under VMWare with overcommitted memory and not setting all memory of the virtual machine as reserved. If memory is overcommitted and the memory of the virtual machine is not fully reserved the virtual machine swaps the memory to disk which kill the Java performance. Are you running the gateway virtualized or on real hardware? Kind regards, Martijn -- DJIGZO email encryption _______________________________________________ Users mailing list [email protected] http://lists.djigzo.com/lists/listinfo/users
