Thread Dump Analyzer [closed]

StackOverflow https://stackoverflow.com/questions/13375105

Question

Do you know some good thread dump analyzer tool? Perfect would be :

  • free
  • can read a few thread dumps and compare them
  • point out which threads took the longest, what are the classes that the thread is locked on etc.
  • shows threads, locks, deadlocks and multiple threads waiting to acquire a single lock

Edit:

  • offline analyze - load file with one or many thread dump and analyze it.

Edit: My choice is: Samurai. It has all the features I need: Loads logfile, and compares few thread dumps. Analyze it and points:

  • waiting threads
  • blocked threads
  • blocking threads
  • deadlock

I'll leave question as answered because TDA is the best answer that was given.

Était-ce utile?

La solution

You could use TDA - Thread Dump Analyser, a plug-in for Visual VM.

Visual VM is free as well. I think this is your best choice.

If you are on Linux you could use kill -3 to get a thread dump and look for deadlocks using using Thread Dump Analyzer.

VisualVM now ships as part of the JDK and can be used monitor memory usage, threads and also includes a profiler.

jmap can be used to obtain heap histograms and heap dumps from Java processes. You could then use a tool like Eclipse Memory Analyzer to investigate it.

As another answer mentioned you could look into JMX and JConsole. For each service in our application we have a MBean so we can view keys stats such as queue sizes to check if anything seems out of the ordinary.

From Tools and tips for Sun JVM troubleshooting on ServerFault.

Autres conseils

In case you use IBM JRE you should use IBM Thread and Monitor Dump Analyzer for Java, which offers exactly what you need (offline use, comparisons etc).

You could try my Dump Analyzer. I had the same need and developed my own dump analyzer. It has some of the features of your list.

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