huwh opened a new pull request, #22138:
URL: https://github.com/apache/flink/pull/22138
## What is the purpose of the change
Add an option for redirecting stdout/stderr to files. When this is enabled.
1. flink-console.sh will redirect stdout/err to file.
2. flink-console.sh use log4j.properties as log4j configuration to avoid
logs both in log file and stdout file.
Of course, this option is false by default.
## Brief change log
- *introduce new option kubernetes.flink.std.redirect.enabled, default is
false*
- *when enabled, use log4j.properties/logback.xml as log configuration to
avoid output log duplicated*
- *when enabled, redirect stdout/stderr to log directory so that user can
view these in Flink's web ui*
## Verifying this change
- *Added unit tests for FlinkConfMountDecoratorTest.java*
- *Manually verified the change with kubernetes.flink.std.redirect.enabled
is true or false.*
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (no)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (no)
- The serializers: (no)
- The runtime per-record code paths (performance sensitive): (no)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (no)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
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