pnowojski opened a new pull request #18392:
URL: https://github.com/apache/flink/pull/18392
Right now, if exclusive buffers for the input channel and one buffer for
each subpartition would be allocated on start successfully but there would be
not enough memory for the rest of the buffers(floating buffers, rest buffers
for subpartitions), then we see nothing in the log about that(as I understand).
So first of all, we need to check what logs we have right now about
situations when flink doesn't have enough memory for all configured buffers.
And if we have nothing (or not enough) we should add such a log.
## Verifying this change
Added a dedicated unit test
Manually tested in an end to end example.
## Does this pull request potentially affect one of the following parts:
- Dependencies (does it add or upgrade a dependency): (yes / **no**)
- The public API, i.e., is any changed class annotated with
`@Public(Evolving)`: (yes / **no**)
- The serializers: (yes / **no** / don't know)
- The runtime per-record code paths (performance sensitive): (yes / **no**
/ don't know)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Kubernetes/Yarn, ZooKeeper: (yes / **no** / don't
know)
- The S3 file system connector: (yes / **no** / don't know)
## Documentation
- Does this pull request introduce a new feature? (**yes** / no)
- If yes, how is the feature documented? (not applicable / **docs** /
JavaDocs / not documented)
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