Java has the thread dump which is triggered by a signal 3 sent to the process (e.g. "kill -3 PID"). The equivalent I've found for .NET is to use ADPlus ( |
I'm creating a global exception handling which collects some information before shutting down in some cases. One of this information is the current thread dump. i do this with following code:
ManagementFactory.getThreadMXBean().dumpAllThreads(true, ...
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- does java 6 generate thread dump in addition to heap dump (java_pid14941.hprof)
- this is what happened to one of my applications.
java.lang.OutOfMemoryError: GC overhead limit exceeded
Dumping heap to java_pid14941.hprof ...
- I did find ...
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When the Java application is hanging, you don't even know the use case that is leading to this and want to investigate, I understand that thread dumps can be useful.
But how ... |
I've looked through couple of articles here such as:
http://stackoverflow.com/questions/2124672/java-stack-dump-on-windows
http://stackoverflow.com/questions/239544/thread-dump-programmatically-jdi-java-debugger-interface
But didnt catch the exact answer.
The problem:
There is a Java5 Application on Windows that's runs as a service (so we ... |
I have a basic java server app that has 100 worker threads that do simple HEAD requests on urls. I'm using HttpClient 4.x for this.
A few minutes into the run ... |
I have been using Eclipse Memory Analysis tool to examine a heap dump. I have not seen any cases where an object was kept alive by a local variable in a ... |
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Hi
I am using kill -3 command to see the JVM's thread dump in unix. But where can I find the output of this kill command? I am lost!!
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I am trying to figure out this line in a thread dump
"RMI TCP Connection....." daemon prio=3 tid=0x0000000106f12000
nid=0x1e10 runnable [0xfffffffe48dfe000]
What is that address after runnable ? ... |
In the following java thread dump:
A fatal error has been detected by the
Java Runtime Environment:
EXCEPTION_ACCESS_VIOLATION
(0xc0000005) at pc=0x6d8fd97c,
pid=5528, tid=6952
... |
How do I identify a thread in a java process when the native thread id doesn't match any of the threads listed in a thread dump?
Context: Running on Windows, I'm ... |
The thread dump from a java based application is easy to get but hard to analyze!
There is something interesting we can see from the thread dump.
Suppose we are in a heavily ... |
i would like to ask if Java will utilize more CPU resources when threads are blocked, i.e. waiting to lock a monitor which is currently being locked by another thread.
I am ... |
I sometimes have to look at thread dumps from a Tomcat server. However, this is a very slow process as my application uses thread pools with a couple of hundred threads. ... |
Is there are Thread dump equivalent for .Net4. We tried using MSE from Microsoft but this does not recognize applications compiled for .Net4.0
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Hi All: I am looking for comprehensive information on generating and interpreting thread dumps with as many examples as possible and in as many Operating systems as possible.Can somebody point me to some useful resources on the net and suggest some good books that comprehensively cover this aspect? I looked at the information on Sun's website: http://java.sun.com/developer/technicalArticles/Programming/Stacktrace/ but what I need ... |
Could someone reccommend a good thread dump analyzer? is there an open source one that is pretty good at its job? I used one called Samurai and then the other one was the IBM one. But i saw a lot of comments on the IBM one not being able to do the job right. One of my colleagues said all it ... |
Hi, In JDK 1.4, how can I get the stack dump of ALL the threads in JVM. I tried using "ctrl + Break". It was giving thread dumps of 2-3 threads. But we need it for ALL the threads - preferably programmatically. As our application is running on JDK 1.4, I cannot use J2SE 5's Thread.getAllStackTraces() Thanks |
To get a stack dump of the threads in the JVM, I recommend that you use a profiler -- like Wily, YourKit, Symantec, etc. Or without a profiler, a JVM will dump the stacks of all of the threads, if you send a SIGQUIT in Unix, or a break signal in windows. Henry |
Below I have posted a thread dump of a thread I have no clue what it is doing. By blocking the lock <0x46fdf0b0> (a java.lang.Boolean) it is blocking my whole web application. It does not release the lock for at least 4 hours. But what is the thread doing? I can't see any "waiting on" or "waiting to lock"... Regards, Andreas ... |
Here is an expert from a core dump requested from my VM, which has deadlocked: 2XMFULLTHDDUMP Full thread dump Classic VM (J2RE 1.3.1 IBM Windows 32 build cn131-20021102, native threads): 3XMTHREADINFO "Thread-1" (TID:0x903EA0, sys_thread_t:0x7B0270, state:CW, native ID:0x4DC) prio=5 3XMTHREADINFO "AWT-Windows" (TID:0x903F30, sys_thread_t:0x11808230, state:R, native ID:0x464) prio=6 4XESTACKTRACE at sun.awt.windows.WToolkit.eventLoop(Native Method) 4XESTACKTRACE at sun.awt.windows.WToolkit.run(WToolkit.java:211) 4XESTACKTRACE at java.lang.Thread.run(Thread.java:512) 3XMTHREADINFO "SunToolkit.PostEventQueue-0" (TID:0x903F78, sys_thread_t:0x118057E0, state:CW, ... |
When i do a thread dump on my java application i often see the following in the thread dump : (This came as a surprise to me as to why is java.util.zip being called ?). My application is simply creating some xml documents etc.. and has nothing to do with zip files. Is this any kind of memory problem ? Would ... |
I need to get a thread dump of Java application running as a service on Windows. It can't run in command line, so using Ctrl+Break isn't a solution for me. I heard that Java 5.0 provides new API for getting thread dump, however I can't change code for calling this API. Is there any other way to get thread dump on ... |
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Steve, Thanks for the prompt response. Another problem is that i don't know what needs to happen for the notify to take place. Clearly the thread is busy doing something. Can you recommend something in order to get much more detailed info ? For ex : I would like to what business methods in my app are waiting and which ones ... |
SunForumsGuest48 Posts: 49,999 Registered: 10/22/10 Full thread dump Java HotSpot(TM) Server VM (1.4.2_05-b04 mixed mode): Posted: Apr 25, 2007 12:16 AM Reply Hi All, I am getting below error message when i am starting JBoss Anyone has any idea, why it is happening? Full thread dump Java HotSpot(TM) Server VM (1.4.2_05-b04 mixed mode): "RMI ConnectionExpiration-[127.0.0.1:33030]" daemon prio=1 tid=0x2a375e90 nid=0xcf9 ... |
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Hello, I have an issue that I need an advise for. I have a Java process that is stuck. I suspect it is in a deadlock. The version is 1.5, and the trouble is that the process is run via a 3rd party software, meaning I am not able to connect to its shell. Any ideas how I can do it? ... |
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I have a java server program that listens on unix sockets. At some point, the program just hang in there and did nothing. Here is output by sending -SIGQUIT to it. Main thread is OK and sitting at "client=server.accept();", which is indicated by "at AnnieD.listenSocket(AnnieD.java:248)". There is 1 connection which is indicated by "Thread-1". Though it is "runnable", it also shows ... |