Java Crashes

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  1. JIRA (and other webapps) are completely unavailable.
  2. The Java process is not running and it was not shut down manually.
  3. Files with names like hs_err_pid20929.log being created in the app server's bin directory, containing text such as the below:

    # An unexpected error has been detected by HotSpot Virtual Machine:
    #  SIGSEGV (0xb) at pc=0xfe9bb960, pid=20929, tid=17
    # Java VM: Java HotSpot(TM) Server VM (1.5.0_01-b08 mixed mode)
    # Problematic frame:
    # V  []
    ---------------  T H R E A D  ---------------
    Current thread (0x01a770e0):  JavaThread "JiraQuartzScheduler_Worker-1" [_thread_in_vm, id=17]
    siginfo:si_signo=11, si_errno=0, si_code=1, si_addr=0x00000000
     O0=0xf5999882 O1=0xf5999882 O2=0x00000000 O3=0x00000000
     O4=0x00000000 O5=0x00000001 O6=0xc24ff0b0 O7=0x00008000
     G1=0xfe9bb80c G2=0xf5999a48 G3=0x0a67677d G4=0xf5999882
     G5=0xc24ff380 G6=0x00000000 G7=0xfdbc3800 Y=0x00000000
     PC=0xfe9bb960 nPC=0xfe9bb964

This indicates Java is crashing.


Web applications like JIRA and Confluence run in a Java virtual machine (JVM). The virtual machine is responsible for emulating a CPU, managing memory and devices, just like the operating system does for native applications (MS Office, web browsers etc).

A Java virtual machine crash is analogous to getting a Windows Blue Screen of Death when using MS Office or a web browser.

That said, JVM bugs causing crashes often appear when the JVM is running out of memory. The hs_err_pid*.log file should list the state of memory at the time of the crash. If the JVM was low on memory, then it's a good idea to read the JIRA Crashes Due to 'OutOfMemoryError Java heap space' page and follow the suggestions there.


And of course, you can always let us know (include the hs_err_pid) file), and we can provide advise taking into account the specifics of your situation.

Last modified on Mar 30, 2016

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