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jstack.md

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jstack

NAME

jstack - stack trace

SYNOPSIS

jstack [ option ] pid

jstack [ option ] executable core

jstack [ option ] [server-id@]remote-hostname-or-IP

DESCRIPTION

jstack prints Java stack traces of Java threads for a given Java process or core file or a remote debug server. For each Java frame, the full class name, method name, 'bci' (byte code index) and line number, if available, are printed.

PARAMETERS

  • pid

    • process id for which the stacktrace is to be printed. The process must be a Java process. To get a list of Java processes running on a machine, jps may be used.

  • executable

    • Java executable from which the core dump was produced.

  • core

    • core file for which the stack trace is to be printed.

  • remote-hostname-or-IP

    • remote debug server's hostname or IP address.

  • server-id

    • optional unique id, if multiple debug servers are running on the same remote host.

OPTIONS

  • -m
    • prints mixed mode (both Java and native C/C++ frames) stack trace.
$ pid=1345
$ jstack $pid >jstack.PID.$pid.TIMESTAMP.$(date +%H%M%S.%N)