User development, A new message was posted in the thread "JBoss 3.2.6 - pauses for a minute during startup": http://community.jboss.org/message/528907#528907 Author : Mike Curwen Profile : http://community.jboss.org/people/mike.curwen Message: -------------------------------------------------------------- I've managed to catch a pause again.  I took 3 thread dumps, each about 10 seconds apart.   14:54:02,029 INFO  [Server] Root Deployment Filename: jboss-service.xml 14:54:02,030 INFO  [Server] Starting General Purpose Architecture (GPA)... 14:54:02,263 INFO  [ServerInfo] Java version: 1.4.2_19,Sun Microsystems Inc. 14:54:02,263 INFO  [ServerInfo] Java VM: Java HotSpot(TM) Server VM 1.4.2_19-b04,Sun Microsystems Inc. 14:54:02,263 INFO  [ServerInfo] OS-System: Linux 2.6.24-23-generic,i386 14:54:02,437 INFO  [Server] Core system initialized Full thread dump Java HotSpot(TM) Server VM (1.4.2_19-b04 mixed mode): "DestroyJavaVM" prio=1 tid=0x08057c38 nid=0x472e waiting on condition [0x00000000..0xbff722ec] "main" prio=1 tid=0x080ef038 nid=0x4738 runnable [0x81ad4000..0x81ad51b8]         at java.io.FileInputStream.readBytes(Native Method)         at java.io.FileInputStream.read(FileInputStream.java:194)         at java.io.BufferedInputStream.fill(BufferedInputStream.java:183)         at java.io.BufferedInputStream.read1(BufferedInputStream.java:222)         at java.io.BufferedInputStream.read(BufferedInputStream.java:277)         - locked <0x83238588> (a java.io.BufferedInputStream)         at sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedByte(SeedGenerator.java:467)         at sun.security.provider.SeedGenerator.getSeedBytes(SeedGenerator.java:137)         at sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.java:132)         at sun.security.provider.SecureRandom.engineGenerateSeed(SecureRandom.java:112)         at sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:169)         - locked <0x83238048> (a sun.security.provider.SecureRandom)         at java.security.SecureRandom.nextBytes(SecureRandom.java:381)         - locked <0x831bffc0> (a java.security.SecureRandom)         at java.security.SecureRandom.next(SecureRandom.java:403)         at java.util.Random.nextLong(Random.java:282)         at java.io.File.generateFile(File.java:1291)         at java.io.File.createTempFile(File.java:1399)         at org.jboss.deployment.MainDeployer.makeLocalCopy(MainDeployer.java:990)         at org.jboss.deployment.MainDeployer.init(MainDeployer.java:673)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:631)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:604)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:588)         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)         at java.lang.reflect.Method.invoke(Method.java:324)         at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:62)         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:54)         at org.jboss.mx.server.Invocation.invoke(Invocation.java:82)         at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:197)         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)         at $Proxy5.deploy(Unknown Source)         at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:407)         at org.jboss.system.server.ServerImpl.start(ServerImpl.java:311)         at org.jboss.Main.boot(Main.java:145)         at org.jboss.Main$1.run(Main.java:399)         at java.lang.Thread.run(Thread.java:534) "Signal Dispatcher" daemon prio=1 tid=0x080c09f0 nid=0x4733 waiting on condition [0x00000000..0x00000000] "Finalizer" daemon prio=1 tid=0x080bb858 nid=0x4731 in Object.wait() [0x82535000..0x825351b8]         at java.lang.Object.wait(Native Method)         - waiting on <0x82910490> (a java.lang.ref.ReferenceQueue$Lock)         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:111)         - locked <0x82910490> (a java.lang.ref.ReferenceQueue$Lock)         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)         at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=1 tid=0x080bb480 nid=0x4730 in Object.wait() [0x825b6000..0x825b61b8]         at java.lang.Object.wait(Native Method)         - waiting on <0x82910380> (a java.lang.ref.Reference$Lock)         at java.lang.Object.wait(Object.java:429)         at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:115)         - locked <0x82910380> (a java.lang.ref.Reference$Lock) "VM Thread" prio=1 tid=0x080ba9e0 nid=0x472f runnable "VM Periodic Task Thread" prio=1 tid=0x080c4fe0 nid=0x4737 waiting on condition "Suspend Checker Thread" prio=1 tid=0x080c0000 nid=0x4732 runnable me@oldhost:/usr/foo/java/jboss-3.2.6/bin$ me@oldhost:/usr/foo/java/jboss-3.2.6/bin$  (this is me hitting enter a couple times...) me@oldhost:/usr/foo/java/jboss-3.2.6/bin$ me@oldhost:/usr/foo/java/jboss-3.2.6/bin$ Full thread dump Java HotSpot(TM) Server VM (1.4.2_19-b04 mixed mode): "DestroyJavaVM" prio=1 tid=0x08057c38 nid=0x472e waiting on condition [0x00000000..0xbff722ec] "main" prio=1 tid=0x080ef038 nid=0x4738 runnable [0x81ad4000..0x81ad51b8]         at java.io.FileInputStream.readBytes(Native Method)         at java.io.FileInputStream.read(FileInputStream.java:194)         at java.io.BufferedInputStream.fill(BufferedInputStream.java:183)         at java.io.BufferedInputStream.read1(BufferedInputStream.java:222)         at java.io.BufferedInputStream.read(BufferedInputStream.java:277)         - locked <0x83238588> (a java.io.BufferedInputStream)         at sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedByte(SeedGenerator.java:467)         at sun.security.provider.SeedGenerator.getSeedBytes(SeedGenerator.java:137)         at sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.java:132)         at sun.security.provider.SecureRandom.engineGenerateSeed(SecureRandom.java:112)         at sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:169)         - locked <0x83238048> (a sun.security.provider.SecureRandom)         at java.security.SecureRandom.nextBytes(SecureRandom.java:381)         - locked <0x831bffc0> (a java.security.SecureRandom)         at java.security.SecureRandom.next(SecureRandom.java:403)         at java.util.Random.nextLong(Random.java:282)         at java.io.File.generateFile(File.java:1291)         at java.io.File.createTempFile(File.java:1399)         at org.jboss.deployment.MainDeployer.makeLocalCopy(MainDeployer.java:990)         at org.jboss.deployment.MainDeployer.init(MainDeployer.java:673)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:631)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:604)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:588)         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)         at java.lang.reflect.Method.invoke(Method.java:324)         at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:62)         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:54)         at org.jboss.mx.server.Invocation.invoke(Invocation.java:82)         at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:197)         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)         at $Proxy5.deploy(Unknown Source)         at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:407)         at org.jboss.system.server.ServerImpl.start(ServerImpl.java:311)         at org.jboss.Main.boot(Main.java:145)         at org.jboss.Main$1.run(Main.java:399)         at java.lang.Thread.run(Thread.java:534) "Signal Dispatcher" daemon prio=1 tid=0x080c09f0 nid=0x4733 waiting on condition [0x00000000..0x00000000] "Finalizer" daemon prio=1 tid=0x080bb858 nid=0x4731 in Object.wait() [0x82535000..0x825351b8]         at java.lang.Object.wait(Native Method)         - waiting on <0x82910490> (a java.lang.ref.ReferenceQueue$Lock)         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:111)         - locked <0x82910490> (a java.lang.ref.ReferenceQueue$Lock)         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)         at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=1 tid=0x080bb480 nid=0x4730 in Object.wait() [0x825b6000..0x825b61b8]         at java.lang.Object.wait(Native Method)         - waiting on <0x82910380> (a java.lang.ref.Reference$Lock)         at java.lang.Object.wait(Object.java:429)         at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:115)         - locked <0x82910380> (a java.lang.ref.Reference$Lock) "VM Thread" prio=1 tid=0x080ba9e0 nid=0x472f runnable "VM Periodic Task Thread" prio=1 tid=0x080c4fe0 nid=0x4737 waiting on condition "Suspend Checker Thread" prio=1 tid=0x080c0000 nid=0x4732 runnable me@oldhost:/usr/foo/java/jboss-3.2.6/bin$ me@oldhost:/usr/foo/java/jboss-3.2.6/bin$  (more of me hitting enter) me@oldhost:/usr/foo/java/jboss-3.2.6/bin$ me@oldhost:/usr/foo/java/jboss-3.2.6/bin$ Full thread dump Java HotSpot(TM) Server VM (1.4.2_19-b04 mixed mode): "DestroyJavaVM" prio=1 tid=0x08057c38 nid=0x472e waiting on condition [0x00000000..0xbff722ec] "main" prio=1 tid=0x080ef038 nid=0x4738 runnable [0x81ad4000..0x81ad51b8]         at java.io.FileInputStream.readBytes(Native Method)         at java.io.FileInputStream.read(FileInputStream.java:194)         at java.io.BufferedInputStream.fill(BufferedInputStream.java:183)         at java.io.BufferedInputStream.read1(BufferedInputStream.java:222)         at java.io.BufferedInputStream.read(BufferedInputStream.java:277)         - locked <0x83238588> (a java.io.BufferedInputStream)         at sun.security.provider.SeedGenerator$URLSeedGenerator.getSeedByte(SeedGenerator.java:467)         at sun.security.provider.SeedGenerator.getSeedBytes(SeedGenerator.java:137)         at sun.security.provider.SeedGenerator.generateSeed(SeedGenerator.java:132)         at sun.security.provider.SecureRandom.engineGenerateSeed(SecureRandom.java:112)         at sun.security.provider.SecureRandom.engineNextBytes(SecureRandom.java:169)         - locked <0x83238048> (a sun.security.provider.SecureRandom)         at java.security.SecureRandom.nextBytes(SecureRandom.java:381)         - locked <0x831bffc0> (a java.security.SecureRandom)         at java.security.SecureRandom.next(SecureRandom.java:403)         at java.util.Random.nextLong(Random.java:282)         at java.io.File.generateFile(File.java:1291)         at java.io.File.createTempFile(File.java:1399)         at org.jboss.deployment.MainDeployer.makeLocalCopy(MainDeployer.java:990)         at org.jboss.deployment.MainDeployer.init(MainDeployer.java:673)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:631)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:604)         at org.jboss.deployment.MainDeployer.deploy(MainDeployer.java:588)         at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)         at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)         at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)         at java.lang.reflect.Method.invoke(Method.java:324)         at org.jboss.mx.server.ReflectedDispatcher.dispatch(ReflectedDispatcher.java:60)         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:62)         at org.jboss.mx.server.Invocation.dispatch(Invocation.java:54)         at org.jboss.mx.server.Invocation.invoke(Invocation.java:82)         at org.jboss.mx.server.AbstractMBeanInvoker.invoke(AbstractMBeanInvoker.java:197)         at org.jboss.mx.server.MBeanServerImpl.invoke(MBeanServerImpl.java:473)         at org.jboss.mx.util.MBeanProxyExt.invoke(MBeanProxyExt.java:176)         at $Proxy5.deploy(Unknown Source)         at org.jboss.system.server.ServerImpl.doStart(ServerImpl.java:407)         at org.jboss.system.server.ServerImpl.start(ServerImpl.java:311)         at org.jboss.Main.boot(Main.java:145)         at org.jboss.Main$1.run(Main.java:399)         at java.lang.Thread.run(Thread.java:534) "Signal Dispatcher" daemon prio=1 tid=0x080c09f0 nid=0x4733 waiting on condition [0x00000000..0x00000000] "Finalizer" daemon prio=1 tid=0x080bb858 nid=0x4731 in Object.wait() [0x82535000..0x825351b8]         at java.lang.Object.wait(Native Method)         - waiting on <0x82910490> (a java.lang.ref.ReferenceQueue$Lock)         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:111)         - locked <0x82910490> (a java.lang.ref.ReferenceQueue$Lock)         at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:127)         at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159) "Reference Handler" daemon prio=1 tid=0x080bb480 nid=0x4730 in Object.wait() [0x825b6000..0x825b61b8]         at java.lang.Object.wait(Native Method)         - waiting on <0x82910380> (a java.lang.ref.Reference$Lock)         at java.lang.Object.wait(Object.java:429)         at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:115)         - locked <0x82910380> (a java.lang.ref.Reference$Lock) "VM Thread" prio=1 tid=0x080ba9e0 nid=0x472f runnable "VM Periodic Task Thread" prio=1 tid=0x080c4fe0 nid=0x4737 waiting on condition "Suspend Checker Thread" prio=1 tid=0x080c0000 nid=0x4732 runnable me@oldhost:/usr/foo/java/jboss-3.2.6/bin$ 14:54:46,561 INFO  [Log4jService$URLWatchTimerTask] Configuring from URL: resource:log4j.xml pause is now over....   so I read that as "it's waiting for i/o", except vmstat within the host didn't who this wait.    Would this be evidence of resource contention in the server that is hosting the VM? -------------------------------------------------------------- To reply to this message visit the message page: http://community.jboss.org/message/528907#528907