hzjhjjyy opened a new pull request, #23254:
URL: https://github.com/apache/flink/pull/23254
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## What is the purpose of the change
In the context of https://github.com/apache/flink/pull/12069, the
initialization of the `CollectSinkFunction$ServerThread` currently uses port 0,
which corresponds to a random port assignment.
Issues might arise under the following circumstances:
1. When the JobManager and TaskManager are deployed on different servers.
2. When network communication between servers requires specific ports to be
open.
3. When using `sql-client.sh` at the JobManager to execute operations like
selecting data, the CollectSinkFunction$ServerThread running on the TaskManager
using a random port can lead to data retrieval failures.
The purpose of this pull request is to address this problem by introducing a
configuration parameter, 'taskmanager.collect.port', which allows specifying
the port for the `CollectSinkFunction$ServerThread`.
## Brief change log
1. The `TaskManagerOptions` has been expanded to include the configuration
`COLLECT_PORT` (`taskmanager.collect.port`). If left unconfigured, it defaults
to using port 0.
2. The `TaskManagerRuntimeInfo` now includes a default
`getTaskManagerCollectPort()` method.
3. In the `CollectSinkFunction$ServerThread`, a `getCollectPort()` method
has been added and incorporated into its initialization process. Additionally,
a minor portion of the methods has been refactored.
## Verifying this change
Integration tests have been added.
## 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: yes
- If yes, how is the feature documented: JavaDocs
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