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kyuubi/docs/contributing/code/debugging.md
Kent Yao 5032901dfc
[KYUUBI #4768] [INFRA] Guidelines for Document and Code contributions 
### _Why are the changes needed?_

Guidelines for Document and Code Contributions.

- code style
- documentation style
- quick starts
- sphinx-copybutton for copy button in code blocks
- add kind:minor,help wanted,good first issue to doc issue template

### _How was this patch tested?_
- [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible

- [x] Add screenshots for manual tests if appropriate

<img width="1325" alt="image" src="https://user-images.githubusercontent.com/8326978/234193368-473e2a1d-2deb-4d91-901a-19cea58a489b.png">

- [x] [Run test](https://kyuubi.readthedocs.io/en/master/develop_tools/testing.html#running-tests) locally before make a pull request

Closes #4768 from yaooqinn/guide.

Closes #4768

3a0bd395b [Kent Yao] Update docs/contributing/doc/build.rst
8fe4f6d14 [Kent Yao] Update docs/contributing/doc/build.rst
a753bdde5 [Kent Yao] Guidelines for Document and Code contributions
f8393fe8d [Kent Yao] Guidelines for Document and Code contributions
8f2d3ce82 [Kent Yao] Guidelines for Document and Code contributions
4f3a2128b [Kent Yao] Guidelines for Document and Code contributions

Authored-by: Kent Yao <yao@apache.org>
Signed-off-by: Cheng Pan <chengpan@apache.org>
2023-04-27 19:58:10 +08:00

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Debugging Kyuubi

You can use the Java Debug Wire Protocol to debug Kyuubi with your favorite IDE tool, e.g. IntelliJ IDEA.

Debugging Server

We can configure the JDWP agent in KYUUBI_JAVA_OPTS for debugging.

For example,

KYUUBI_JAVA_OPTS=-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005 \
bin/kyuubi start

In the IDE, you set the corresponding parameters(host&port) in debug configurations, for example,

Debugging Engine

We can configure the Kyuubi properties to enable debugging engine.

Flink Engine

kyuubi.engine.flink.java.options -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005

Trino Engine

kyuubi.engine.trino.java.options -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005

Hive Engine

kyuubi.engine.hive.java.options -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005

Debugging Apps

Spark Engine

  • Spark Driver
spark.driver.extraJavaOptions   -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
  • Spark Executor
spark.executor.extraJavaOptions   -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005

Flink Engine

  • Flink Processes
env.java.opts   -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
  • Flink JobManager
env.java.opts.jobmanager   -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
  • Flink TaskManager
env.java.opts.taskmanager   -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
  • Flink HistoryServer
env.java.opts.historyserver   -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
  • Flink Client
env.java.opts.client   -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005