Hello All,

I'm running a SUN One application server, and according to it, it is running the JVM with these flags:

-Xms4M -Xmx64M

But when I do a ps -ef I see the process, BUT without the flags?!?!

My Question:

Is there any other way to see which options the JVM is running with?

Hi,

Well one way would be to use JConsole. From the command line type jconsole and a small swing app should start and hopefully list the java processes running on your machine. Select the process you are interested in. Then you can click on the VM tab and see information about the process including the flags that were passed to the vm.

Interesting that you can't see the flags from ps as on my SuSE and Mandriva boxes ps does show the vm flags. Which distro are you using?

Hope this helps,

Ben.

Is there any other way to run jconsole other than via an X session... I am trying everything in the book, but I can't get it to display:

Exception in thread "main" java.lang.InternalError: Can't connect to X11 window server using 'SERVER123456789:10.0' as the value of the DISPLAY variable.
at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
at sun.awt.X11GraphicsEnvironment.access$000(X11GraphicsEnvironment.java:53)
at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:142)
at java.security.AccessController.doPrivileged(Native Method)
at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:131)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:68)
at sun.awt.motif.MToolkit.<clinit>(MToolkit.java:93)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Class.java:164)
at java.awt.Toolkit$2.run(Toolkit.java:821)
at java.security.AccessController.doPrivileged(Native Method)
at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:804)
at java.awt.Toolkit.getEventQueue(Toolkit.java:1592)
at java.awt.EventQueue.invokeLater(EventQueue.java:809)
at javax.swing.SwingUtilities.invokeLater(SwingUtilities.java:1198)
at sun.tools.jconsole.JConsole.mainInit(JConsole.java:664)
at sun.tools.jconsole.JConsole.main(JConsole.java:827)



Is it possible to run in command line mode?

Hi,

No, I'm afraid you cannot run Jconsole as a command line app.

Where did SERVER123456789:10.0 come from, is your server really called SERVER123456789?

Ben.

Let's say that SERVER123456789 is the name I use here, don't want to give the name away you know...

I tried using :0.0 and servername:0.0 which work in other environments, but not here...

Any ideas? What DISPLAY variable do you use?

Hi,

My DISPLAY is set to :0.0

Ben.

I was afraid you were going to say that....

Hey I got it! In another machine, but OK, let's play with it...

I got the console in my screen, but now I have a tab that reads "Local", and it's all empty...?

Hey I found the command line versions of it....hope it helps!!

1) jinfo


Attaching to process ID 16664, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 1.5.0_01-b08
-XX:NewRatio=2 -Xmx2G -Dcom.sun.aas.defaultLogFile=/apps/kam/var/opt/SUNWappserver/nodeagents/gsx129.kpn-mobile.net/aminstanceA/logs/server.log -Djava.endorsed.dirs=/apps/kam/opt/SUNWappserver/appserver/lib/endorsed -Djava.security.auth.login.config=/apps/kam/var/opt/SUNWappserver/nodeagents/gsx129.kpn-mobile.net/aminstanceA/config/login.conf -Dsun.rmi.dgc.server.gcInterval=3600000 -Dsun.rmi.dgc.client.gcInterval=3600000 -Djava.ext.dirs=/usr/jdk/entsys-j2se/jre/lib/ext:/apps/kam/var/opt/SUNWappserver/nodeagents/gsx129.kpn-mobile.net/aminstanceA/config/aminstanceA-config/lib/ext:/apps/kam/var/opt/SUNWappserver/nodeagents/gsx129.kpn-mobile.net/aminstanceA/lib/ext:/apps/kam/opt/SUNWappserver/appserver/lib/jdbcdrivers -Dcom.sun.enterprise.config.config_environment_factory_class=com.sun.enterprise.config.serverbeans.Ap pserverConfigEnvironmentFactory -Dcom.sun.enterprise.taglibs=appserv-jstl.jar,jsf-impl.jar -Dcom.sun.enterprise.taglisteners=jsf-impl.jar -Dcom.sun.appserv.pluggable.features=com.sun.enterprise.ee.server.pluggable.EEPluggableFeatureImpl -Dcom.sun.appserv.nss.db=/apps/kam/var/opt/SUNWappserver/nodeagents/gsx129.kpn-mobile.net/aminstanceA/config -Djdbc.drivers=com.pointbase.jdbc.jdbcUniversalDriver -DLOG_COMPATMODE=Off -Djava.protocol.handler.pkgs=com.iplanet.services.comm -Ds1is.java.util.logging.config.class=com.sun.identity.log.s1is.LogConfigReader -Dcom.iplanet.am.serverMode=true -Dserver.name=aminstanceA -DJMX_SYSTEM_CONNECTOR_PORT=53353 -DIIOP_LISTENER_PORT=53360 -Djavax.xml.parsers.SAXParserFactory=com.sun.org.apache.xerces.internal.jaxp.SAXParserFactoryImpl -Dcom.sun.aas.configName=aminstanceA-config -Dorg.xml.sax.parser=org.xml.sax.helpers.XMLReaderAdapter -Ddomain.name=gsx129.kpn-mobile.net -Djmx.invoke.getters=true -Djavax.xml.parsers.DocumentBuilderFactory=com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderFac toryImpl -Dcom.sun.aas.promptForIdentity=true -Dorg.xml.sax.driver=com.sun.org.apache.xerces.internal.parsers.SAXParser -DIIOP_SSL_LISTENER_PORT=53350 -DIIOP_SSL_MUTUALAUTH_PORT=53347 -DHTTP_LISTENER_PORT=58080 -Dcom.sun.aas.instanceRoot=/apps/kam/var/opt/SUNWappserver/nodeagents/gsx129.kpn-mobile.net/aminstanceA -Djavax.xml.transform.TransformerFactory=com.sun.org.apache.xalan.internal.xsltc.trax.TransformerFact oryImpl -Dcom.sun.aas.domainName=gsx129.kpn-mobile.net -DHTTP_SSL_LISTENER_PORT=58081 -Djava.util.logging.manager=com.sun.enterprise.server.logging.ServerLogManager -Dproduct.name=Sun-Java-System/Application-Server -Dcom.sun.enterprise.overrideablejavaxpackages=javax.faces,javax.servlet.jsp.jstl,javax.xml.bind,java x.help -Dcom.sun.aas.configRoot=/apps/kam/opt/SUNWappserver/appserver/config -Djava.library.path=/usr/jdk/entsys-j2se/usr/jdk/entsys-j2se/jre/lib/sparc/client:/usr/jdk/instances/jdk1.5.0/jre/lib/sparc/server:/usr/jdk/instances/jdk1.5.0/jre/lib/sparc:/usr/jdk/instances/jdk1.5.0/jre/../lib/sparc:/usr/lib/mps/secv1:/apps/kam/opt/SUNWappserver/appserver/lib:/usr/lib/lwp:/usr/lib/mps/secv1:/apps/kam/opt/SUNWappserver/appserver/lib:/usr/lib/lwp:/usr/jdk/entsys-j2se/usr/jdk/entsys-j2se/jre/lib/sparc/client:/usr/jdk/instances/jdk1.5.0/jre/lib/sparc/server:/usr/jdk/instances/jdk1.5.0/jre/lib/sparc:/usr/jdk/instances/jdk1.5.0/jre/../lib/sparc:/usr/lib/mps/secv1:/apps/kam/opt/SUNWappserver/appserver/lib:/usr/lib/lwp:/usr/lib/mps/secv1:/apps/kam/opt/SUNWappserver/appserver/lib:/usr/lib/lwp:/usr/jdk/instances/jdk1.5.0/jre/lib/sparc/server:/usr/jdk/instances/jdk1.5.0/jre/lib/sparc:/usr/jdk/instances/jdk1.5.0/jre/../lib/sparc:/usr/lib/mps/secv1:/apps/kam/opt/SUNWappserver/appserver/lib:/usr/lib::/usr/lib:/usr/lib -Dcom.sun.aas.instanceName=aminstanceA -Dcom.sun.aas.processLauncher=SE -Dcom.sun.aas.launcherReturn=hold


2) jmap

Attaching to process ID 9943, please wait...
Debugger attached successfully.
Server compiler detected.
JVM version is 1.5.0_01-b08

using thread-local object allocation.
Parallel GC with 2 thread(s)

Heap Configuration:
MinHeapFreeRatio = 40
MaxHeapFreeRatio = 70
MaxHeapSize = 201326592 (192.0MB)
NewSize = 2228224 (2.125MB)
MaxNewSize = 4294901760 (4095.9375MB)
OldSize = 1441792 (1.375MB)
NewRatio = 2
SurvivorRatio = 32
PermSize = 16777216 (16.0MB)
MaxPermSize = 67108864 (64.0MB)

Heap Usage:
PS Young Generation
Eden Space:
capacity = 9306112 (8.875MB)
used = 539816 (0.5148086547851562MB)
free = 8766296 (8.360191345214844MB)
5.800660898987676% used
From Space:
capacity = 720896 (0.6875MB)
used = 540736 (0.51568603515625MB)
free = 180160 (0.17181396484375MB)
75.0088778409091% used
To Space:
capacity = 720896 (0.6875MB)
used = 0 (0.0MB)
free = 720896 (0.6875MB)
0.0% used
PS Old Generation
capacity = 25165824 (24.0MB)
used = 0 (0.0MB)
free = 25165824 (24.0MB)
0.0% used
PS Perm Generation
capacity = 16777216 (16.0MB)
used = 5566792 (5.308906555175781MB)
free = 11210424 (10.691093444824219MB)
33.18066596984863% used


3) jstack

JVM version is 1.5.0_01-b08
Thread t@21: (state = BLOCKED)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.util.pool.BasicRunnable.run() @bci=150, line=452 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread t@20: (state = BLOCKED)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.util.pool.BasicRunnable.run() @bci=150, line=452 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread t@1: (state = BLOCKED)


Thread t@19: (state = IN_NATIVE)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=384 (Interpreted frame)
- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50, line=450 (Interpreted frame)
- java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.multibroker.fullyconnected.ClusterListener.run() @bci=30, line=1508 (Interpreted frame)


Thread t@18: (state = BLOCKED)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.multibroker.CallbackDispatcher.run() @bci=30, line=276 (Interpreted frame)


Thread t@17: (state = IN_NATIVE)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=384 (Interpreted frame)
- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50, line=450 (Interpreted frame)
- java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.net.tcp.TcpProtocol.accept() @bci=279, line=233 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.service.imq.IMQService.run() @bci=125, line=579 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread t@16: (state = IN_NATIVE)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=384 (Interpreted frame)
- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50, line=450 (Interpreted frame)
- java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.net.tcp.TcpProtocol.accept() @bci=279, line=233 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.service.imq.IMQService.run() @bci=125, line=579 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread t@15: (state = BLOCKED)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.multibroker.BrokerConsumers.run() @bci=39, line=365 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread t@14: (state = IN_NATIVE)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.socketAccept(java.net.SocketImpl) (Interpreted frame)
- java.net.PlainSocketImpl.accept(java.net.SocketImpl) @bci=7, line=384 (Interpreted frame)
- java.net.ServerSocket.implAccept(java.net.Socket) @bci=50, line=450 (Interpreted frame)
- java.net.ServerSocket.accept() @bci=48, line=421 (Interpreted frame)
- com.sun.messaging.jmq.jmsserver.service.PortMapper.run() @bci=51, line=384 (Interpreted frame)
- java.lang.Thread.run() @bci=11, line=595 (Interpreted frame)


Thread t@13: (state = BLOCKED)
- java.lang.Object.wait(long) (Compiled frame; information may be imprecise)
- com.sun.messaging.jmq.util.timer.TimerThread.mainLoop() @bci=213, line=476 (Compiled frame)
- com.sun.messaging.jmq.util.timer.TimerThread.run() @bci=7, line=410 (Interpreted frame)


Thread t@7: (state = BLOCKED)


Thread t@6: (state = BLOCKED)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.ref.ReferenceQueue.remove(long) @bci=44, line=116 (Interpreted frame)
- java.lang.ref.ReferenceQueue.remove() @bci=2, line=132 (Interpreted frame)
- java.lang.ref.Finalizer$FinalizerThread.run() @bci=3, line=159 (Interpreted frame)


Thread t@5: (state = BLOCKED)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait(long) (Interpreted frame)
- java.lang.Object.wait() @bci=2, line=474 (Interpreted frame)
- java.lang.ref.Reference$ReferenceHandler.run() @bci=46, line=116 (Interpreted frame)

Ah, useful, I'll remember that one.

Ben.