Hello,
@Thread dumps:
I attached some current thread.Directly after startup and after Tomcat
stops responding.
@Installation and start:
I installed Tomcat directly from a zip file and runs it from the given
scripts.
@Prevented access:
I have deactivated the firewall as well as the virus scanner. But Tomcat
stops responding again.
What else could I check?
Thank you and kind regards,
T. Gau
Caldarale, Charles R schrieb am 05.08.2010 14:47:
From: T. Gau [mailto:t...@normad.de]
Subject: Re: Tomcat 6 does not respond or freeze after startup
as I understand the netstat output the mentioned PID's are the client
ports instead.
You are correct, André misread the output.
What seems conspiciuous is that the home page from
http://localhost:8080
is loaded but the images to the apache foundation and the powered
by are missing and the browser is showing as still loading.
This still sounds like either a firewall is blocking traffic, or some kind of
virus scanner is getting in the way on file accesses, or the account Tomcat is
running under can't access the resources.
How did you install Tomcat, and how are you running it? I'd suggest running it
from scripts rather than as a service until you get things sorted.
After the freeze of Tomcat the Firefox browser shows the
"loading sign" for each request againsthttp://localhost:8080.
There's no evidence that Tomcat is actually freezing, since you continue to see
activity via VisualVM. It still appears that something external to Tomcat is
preventing access.
- Chuck
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2010-08-05 19:57:37
Full thread dump Java HotSpot(TM) Client VM (16.3-b01 mixed mode, sharing):
"RMI TCP Accept-0" daemon prio=6 tid=0x0305a800 nid=0x17c4 runnable [0x03aef000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x28130f38> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at
sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:34)
at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:369)
at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:341)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Monitor" daemon prio=6 tid=0x0305b800 nid=0x1704 in Object.wait()
[0x0397f000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x281376a8> (a
org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
at
org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable.run(ThreadPool.java:565)
- locked <0x281376a8> (a
org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor4" daemon prio=6 tid=0x0331bc00 nid=0x1700 runnable [0x0392f000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x28137788> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at org.apache.jk.common.ChannelSocket.accept(ChannelSocket.java:312)
at
org.apache.jk.common.ChannelSocket.acceptConnections(ChannelSocket.java:666)
at
org.apache.jk.common.ChannelSocket$SocketAcceptor.runIt(ChannelSocket.java:877)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor3" daemon prio=6 tid=0x032f1800 nid=0x16fc in Object.wait()
[0x038df000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x28137a30> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:662)
- locked <0x28137a30> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor2" daemon prio=6 tid=0x03300800 nid=0x16f8 in Object.wait()
[0x0388f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x28137ad0> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:662)
- locked <0x28137ad0> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor1" daemon prio=6 tid=0x032ef800 nid=0x16f4 in Object.wait()
[0x0383f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x28137b70> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:662)
- locked <0x28137b70> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"http-8080-1" daemon prio=6 tid=0x032edc00 nid=0x16f0 in Object.wait()
[0x037df000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x28139d68> (a
org.apache.tomcat.util.net.JIoEndpoint$Worker)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:458)
- locked <0x28139d68> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:484)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"http-8080-Acceptor-0" daemon prio=6 tid=0x032e9000 nid=0x16ec runnable
[0x0378f000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x28034e98> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at
org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(DefaultServerSocketFactory.java:61)
at
org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:352)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"ContainerBackgroundProcessor[StandardEngine[Catalina]]" daemon prio=6
tid=0x032e8400 nid=0x16e8 waiting on condition [0x0373f000]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1579)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"GC Daemon" daemon prio=2 tid=0x0302e400 nid=0x16e0 in Object.wait()
[0x030bf000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x27fb3e38> (a sun.misc.GC$LatencyLock)
at sun.misc.GC$Daemon.run(GC.java:100)
- locked <0x27fb3e38> (a sun.misc.GC$LatencyLock)
Locked ownable synchronizers:
- None
"Low Memory Detector" daemon prio=6 tid=0x02b1e400 nid=0x16d8 runnable
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"CompilerThread0" daemon prio=10 tid=0x02b1b400 nid=0x16d4 waiting on condition
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Attach Listener" daemon prio=10 tid=0x02b16800 nid=0x16d0 waiting on condition
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Signal Dispatcher" daemon prio=10 tid=0x02b15000 nid=0x16cc runnable
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Finalizer" daemon prio=8 tid=0x02b0d400 nid=0x16c8 in Object.wait()
[0x02cdf000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x27f19e50> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
- locked <0x27f19e50> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
Locked ownable synchronizers:
- None
"Reference Handler" daemon prio=10 tid=0x02b0bc00 nid=0x16c4 in Object.wait()
[0x02c8f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x27f19ed8> (a java.lang.ref.Reference$Lock)
at java.lang.Object.wait(Object.java:485)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
- locked <0x27f19ed8> (a java.lang.ref.Reference$Lock)
Locked ownable synchronizers:
- None
"main" prio=6 tid=0x002b7000 nid=0x16bc runnable [0x0090f000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x2813a170> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at
org.apache.catalina.core.StandardServer.await(StandardServer.java:389)
at org.apache.catalina.startup.Catalina.await(Catalina.java:662)
at org.apache.catalina.startup.Catalina.start(Catalina.java:614)
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:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Locked ownable synchronizers:
- None
"VM Thread" prio=10 tid=0x02b0a800 nid=0x16c0 runnable
"VM Periodic Task Thread" prio=10 tid=0x02b20c00 nid=0x16dc waiting on
condition
JNI global references: 1341
2010-08-05 19:56:09
Full thread dump Java HotSpot(TM) Client VM (16.3-b01 mixed mode, sharing):
"RMI TCP Accept-0" daemon prio=6 tid=0x0305a800 nid=0x17c4 runnable [0x03aef000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x229936f0> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at
sun.management.jmxremote.LocalRMIServerSocketFactory$1.accept(LocalRMIServerSocketFactory.java:34)
at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.executeAcceptLoop(TCPTransport.java:369)
at
sun.rmi.transport.tcp.TCPTransport$AcceptLoop.run(TCPTransport.java:341)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Monitor" daemon prio=6 tid=0x0305b800 nid=0x1704 in Object.wait()
[0x0397f000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x22df0088> (a
org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
at
org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable.run(ThreadPool.java:565)
- locked <0x22df0088> (a
org.apache.tomcat.util.threads.ThreadPool$MonitorRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor4" daemon prio=6 tid=0x0331bc00 nid=0x1700 runnable [0x0392f000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x22df0168> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at org.apache.jk.common.ChannelSocket.accept(ChannelSocket.java:312)
at
org.apache.jk.common.ChannelSocket.acceptConnections(ChannelSocket.java:666)
at
org.apache.jk.common.ChannelSocket$SocketAcceptor.runIt(ChannelSocket.java:877)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor3" daemon prio=6 tid=0x032f1800 nid=0x16fc in Object.wait()
[0x038df000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x22df0410> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:662)
- locked <0x22df0410> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor2" daemon prio=6 tid=0x03300800 nid=0x16f8 in Object.wait()
[0x0388f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x22df04b0> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:662)
- locked <0x22df04b0> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"TP-Processor1" daemon prio=6 tid=0x032ef800 nid=0x16f4 in Object.wait()
[0x0383f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x22df0550> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:662)
- locked <0x22df0550> (a
org.apache.tomcat.util.threads.ThreadPool$ControlRunnable)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"http-8080-1" daemon prio=6 tid=0x032edc00 nid=0x16f0 in Object.wait()
[0x037df000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x22df2748> (a
org.apache.tomcat.util.net.JIoEndpoint$Worker)
at java.lang.Object.wait(Object.java:485)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.await(JIoEndpoint.java:458)
- locked <0x22df2748> (a org.apache.tomcat.util.net.JIoEndpoint$Worker)
at
org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:484)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"http-8080-Acceptor-0" daemon prio=6 tid=0x032e9000 nid=0x16ec runnable
[0x0378f000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x28034e98> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at
org.apache.tomcat.util.net.DefaultServerSocketFactory.acceptSocket(DefaultServerSocketFactory.java:61)
at
org.apache.tomcat.util.net.JIoEndpoint$Acceptor.run(JIoEndpoint.java:352)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"ContainerBackgroundProcessor[StandardEngine[Catalina]]" daemon prio=6
tid=0x032e8400 nid=0x16e8 waiting on condition [0x0373f000]
java.lang.Thread.State: TIMED_WAITING (sleeping)
at java.lang.Thread.sleep(Native Method)
at
org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1579)
at java.lang.Thread.run(Thread.java:619)
Locked ownable synchronizers:
- None
"GC Daemon" daemon prio=2 tid=0x0302e400 nid=0x16e0 in Object.wait()
[0x030bf000]
java.lang.Thread.State: TIMED_WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x27fb3e38> (a sun.misc.GC$LatencyLock)
at sun.misc.GC$Daemon.run(GC.java:100)
- locked <0x27fb3e38> (a sun.misc.GC$LatencyLock)
Locked ownable synchronizers:
- None
"Low Memory Detector" daemon prio=6 tid=0x02b1e400 nid=0x16d8 runnable
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"CompilerThread0" daemon prio=10 tid=0x02b1b400 nid=0x16d4 waiting on condition
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Attach Listener" daemon prio=10 tid=0x02b16800 nid=0x16d0 waiting on condition
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Signal Dispatcher" daemon prio=10 tid=0x02b15000 nid=0x16cc runnable
[0x00000000]
java.lang.Thread.State: RUNNABLE
Locked ownable synchronizers:
- None
"Finalizer" daemon prio=8 tid=0x02b0d400 nid=0x16c8 in Object.wait()
[0x02cdf000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x27f19e50> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:118)
- locked <0x27f19e50> (a java.lang.ref.ReferenceQueue$Lock)
at java.lang.ref.ReferenceQueue.remove(ReferenceQueue.java:134)
at java.lang.ref.Finalizer$FinalizerThread.run(Finalizer.java:159)
Locked ownable synchronizers:
- None
"Reference Handler" daemon prio=10 tid=0x02b0bc00 nid=0x16c4 in Object.wait()
[0x02c8f000]
java.lang.Thread.State: WAITING (on object monitor)
at java.lang.Object.wait(Native Method)
- waiting on <0x27f19ed8> (a java.lang.ref.Reference$Lock)
at java.lang.Object.wait(Object.java:485)
at java.lang.ref.Reference$ReferenceHandler.run(Reference.java:116)
- locked <0x27f19ed8> (a java.lang.ref.Reference$Lock)
Locked ownable synchronizers:
- None
"main" prio=6 tid=0x002b7000 nid=0x16bc runnable [0x0090f000]
java.lang.Thread.State: RUNNABLE
at java.net.PlainSocketImpl.socketAccept(Native Method)
at java.net.PlainSocketImpl.accept(PlainSocketImpl.java:390)
- locked <0x22df2c98> (a java.net.SocksSocketImpl)
at java.net.ServerSocket.implAccept(ServerSocket.java:453)
at java.net.ServerSocket.accept(ServerSocket.java:421)
at
org.apache.catalina.core.StandardServer.await(StandardServer.java:389)
at org.apache.catalina.startup.Catalina.await(Catalina.java:662)
at org.apache.catalina.startup.Catalina.start(Catalina.java:614)
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:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:289)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:414)
Locked ownable synchronizers:
- None
"VM Thread" prio=10 tid=0x02b0a800 nid=0x16c0 runnable
"VM Periodic Task Thread" prio=10 tid=0x02b20c00 nid=0x16dc waiting on
condition
JNI global references: 1338
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