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jstack:tldr:6f6e9
The command "jstack -m ${java_pid}" is used to collect and print the stack trace of a Java process with a specific process ID (java_pid).
Here's a breakdown of the command:
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"jstack" is a Java utility tool that is used to print the Java thread stack information for a running Java process. It is commonly used for troubleshooting and diagnosing performance issues in Java applications.
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"-m" is an option or flag that is used with the jstack command. It stands for "mixed mode" and is used to print both Java and native stack frames in the output.
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"${java_pid}" is a variable that represents the Java process ID (PID) which is a unique identifier for a running Java process. The actual process ID should be substituted in place of ${java_pid} when running the command.
So, when you execute the command "jstack -m ${java_pid}", it will retrieve the stack trace information for the specified Java process ID, including both Java and native stack frames, and print it to the standard output.