jstack:tldr:78511

jstack: Print Java stack traces for all threads in a Java process.

jstack

$ jstack ${java_pid}

try on your machine

The command "jstack ${java_pid}" is used to generate a thread dump of a running Java process with a specific process ID (PID).

Here's a breakdown of the command:

"jstack": This is a command-line tool that ships with the Java Development Kit (JDK). It is used to print information about Java threads, including stack traces of each thread.
"${java_pid}": This is a placeholder for the actual process ID (PID) of the Java process you want to capture the thread dump for. In order to use this command, you need to replace "${java_pid}" with the actual PID of the Java process.

By executing "jstack ${java_pid}", the command sends a signal to the specified Java process, requesting it to dump information about its threads. This information is printed to the console, showing the state and stack trace of each thread. Thread dumps are helpful for diagnosing and troubleshooting issues related to thread contention, deadlocks, or performance problems in Java applications.

This explanation was created by an AI. In most cases those are correct. But please always be careful and never run a command you are not sure if it is safe.

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