Jstack: Difference between revisions

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=Overview=
=Overview=


JVM thread dumps can be generated with <tt>jstack</tt> that ships with the JDK. In order to take a full JVM thread dump, identify the PID of the target JVM and
Dumps the thread stacks at stdout:
Dumps the thread stacks at stdout:


  jstack <pid>
  jstack -l <''pid''> > <''dump-file-name.txt''>


=Insufficient memory or insufficient privileges to attach=
=Insufficient memory or insufficient privileges to attach=

Revision as of 15:40, 13 October 2017

External

Internal

Overview

JVM thread dumps can be generated with jstack that ships with the JDK. In order to take a full JVM thread dump, identify the PID of the target JVM and Dumps the thread stacks at stdout:

jstack -l <pid> > <dump-file-name.txt>

Insufficient memory or insufficient privileges to attach

When getting this, I made it work by using -F command line option:

jstack -F <pid>

Options

-F

Frce a thread dump. Use when jstack <pid> does not respond (process is hung).

-m

Print both java and native frames (mixed mode).

-l

Long listing. Prints additional information about locks.