[jboss-user] [Clustering/JBoss] - strace shows futex

[mohitanchlia]

jboss seems to be stuck during electing master node. when I run strace it shows me:

strace -p 4668
Process 4668 attached - interrupt to quit
futex(0xa79c2e04, FUTEX_WAIT, 1, NULL

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when I run jstack it gives me:

Thread 4678: (state = BLOCKED)
Error occurred during stack walking:
sun.jvm.hotspot.debugger.DebuggerException: sun.jvm.hotspot.debugger.DebuggerException: get_thread_regs failed for a lwp
        at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal$LinuxDebuggerLocalWorkerThread.execute(LinuxDebuggerLocal.java:134)
        at sun.jvm.hotspot.debugger.linux.LinuxDebuggerLocal.getThreadIntegerRegisterSet(LinuxDebuggerLocal.java:437)
        at sun.jvm.hotspot.debugger.linux.LinuxThread.getContext(LinuxThread.java:48)
        at sun.jvm.hotspot.runtime.linux_x86.LinuxX86JavaThreadPDAccess.getCurrentFrameGuess(LinuxX86JavaThreadPDAccess.java:75)
        at sun.jvm.hotspot.runtime.JavaThread.getCurrentFrameGuess(JavaThread.java:252)

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But I don't know where it's being blocked.

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