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https://issues.apache.org/jira/browse/FLINK-10175?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16585676#comment-16585676
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ASF GitHub Bot commented on FLINK-10175:
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StefanRRichter opened a new pull request #6583: [FLINK-10175] Fix concurrent
access to shared buffer between RocksDBMapState and querable state
URL: https://github.com/apache/flink/pull/6583
## What is the purpose of the change
- Fixing a shared buffer between two threads in `RocksDBMapState``-Replacing
`ByteArrayData[Input|Output]View` with slightly enhanced versions of the
already existing `Data[Output|InputDe]Serializer`
## Verifying this change
This change is a trivial rework / code cleanup without any test coverage.
## 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): (yes)
- Anything that affects deployment or recovery: JobManager (and its
components), Checkpointing, Yarn/Mesos, ZooKeeper: (yes)
- The S3 file system connector: (no)
## Documentation
- Does this pull request introduce a new feature? (no)
- If yes, how is the feature documented? (not applicable)
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> Fix concurrent access to shared buffer in map state / querable state
> --------------------------------------------------------------------
>
> Key: FLINK-10175
> URL: https://issues.apache.org/jira/browse/FLINK-10175
> Project: Flink
> Issue Type: Bug
> Components: State Backends, Checkpointing
> Affects Versions: 1.7.0
> Reporter: Stefan Richter
> Assignee: Stefan Richter
> Priority: Major
> Labels: pull-request-available
>
> Accidental sharing of buffers between event processing loop and queryable
> state thread can happen in {{RocksDBMapState::deserializeUserKey}}. Queryable
> state should provide a separate buffer.
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