少于1分钟 | 最后修改: 0001-01-01, 0:00:00 am

Analyzer java-ftrace

Name

java-ftrace - Trace Java function call entry events

This analyzer traces Java function call entry events in real-time within JVM applications. It captures method invocation events with optional backtrace information at each entry point. The analyzer can operate in single mode to print each unique entry event only once, or capture all occurrences. It provides detailed execution flow visibility, helping debug method invocation sequences, analyze call patterns, and troubleshoot runtime behavior in Java applications.

Resource Category

CPU.

Application Type & Technical Stack

  • Java

Command Line Syntax

The analyzer can be invoked directly on the command-line via the orxray utility from the openresty-xray-cli software package.

Alternatively, the analyzer can also be invoked manually or automatically on the web console UI of OpenResty XRay (like on the Advanced web page).

# PID is the target process PID.
orxray analyzer run java-ftrace -p PID

# trace a shell command directly
orxray analyzer run java-ftrace -c SHELL_CMD

# PGID is the process group ID or any process's PID within the target process
# group.
orxray analyzer run java-ftrace -p -PGID

# trace any processes started from the specified executable path.
orxray analyzer run java-ftrace --exe /path/to/exe/file

Tracing Multiple Processes

Supported.

Output Formats

  • Plain Texts

Author

The OpenResty Inc. Team.

Copyright (C) by OpenResty Inc. All rights reserved.