2486c5dff3
### _Why are the changes needed?_ Add debugging instructions for Flink engine. ### _How was this patch tested?_ - [ ] Add some test cases that check the changes thoroughly including negative and positive cases if possible - [ ] Add screenshots for manual tests if appropriate - [x] [Run test](https://kyuubi.apache.org/docs/latest/develop_tools/testing.html#running-tests) locally before make a pull request Closes #2098 from SteNicholas/KYUUBI-2089. Closes #2089 08189b85 [SteNicholas] [KYUUBI #2089] Add debugging instructions for flink engine Authored-by: SteNicholas <programgeek@163.com> Signed-off-by: Kent Yao <yao@apache.org>
93 lines
2.3 KiB
Markdown
93 lines
2.3 KiB
Markdown
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<div align=center>
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</div>
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# Debugging Kyuubi
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You can use the [Java Debug Wire Protocol](https://docs.oracle.com/javase/8/docs/technotes/guides/jpda/conninv.html#Plugin) to debug Kyuubi
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with your favorite IDE tool, e.g. IntelliJ IDEA.
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## Debugging Server
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We can configure the JDWP agent in `KYUUBI_JAVA_OPTS` for debugging.
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For example,
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```bash
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KYUUBI_JAVA_OPTS=-agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005 \
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bin/kyuubi start
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```
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In the IDE, you set the corresponding parameters(host&port) in debug configurations, for example,
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<div align=center>
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</div>
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## Debugging Apps
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### Spark Engine
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- Spark Driver
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```bash
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spark.driver.extraJavaOptions -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
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```
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- Spark Executor
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```bash
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spark.executor.extraJavaOptions -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
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```
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### Flink Engine
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- Flink Processes
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```bash
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env.java.opts -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
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```
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- Flink JobManager
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```bash
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env.java.opts.jobmanager -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
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```
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- Flink TaskManager
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```bash
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env.java.opts.taskmanager -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
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```
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- Flink HistoryServer
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```bash
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env.java.opts.historyserver -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
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```
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- Flink Client
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```bash
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env.java.opts.client -agentlib:jdwp=transport=dt_socket,server=y,suspend=y,address=5005
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``` |