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Posted to issues@flink.apache.org by "Chesnay Schepler (JIRA)" <ji...@apache.org> on 2019/05/31 20:13:00 UTC

[jira] [Closed] (FLINK-12564) Remove getBufferProvider method from ResultPartitionWriter interface

     [ https://issues.apache.org/jira/browse/FLINK-12564?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Chesnay Schepler closed FLINK-12564.
------------------------------------
    Resolution: Fixed

master: c53c446486d58e3db149a9ea6fe1984227e415b2

> Remove getBufferProvider method from ResultPartitionWriter interface
> --------------------------------------------------------------------
>
>                 Key: FLINK-12564
>                 URL: https://issues.apache.org/jira/browse/FLINK-12564
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Network
>            Reporter: zhijiang
>            Assignee: zhijiang
>            Priority: Minor
>              Labels: pull-request-available
>          Time Spent: 20m
>  Remaining Estimate: 0h
>
> Currently `ResultPartitionWriter#getBufferProvider` is used for requesting `BufferBuilder` in `RecordWriter`, then the `BufferConsumer` created from `BufferBuilder` is added into `ResultPartitionWriter` via `addBufferConsumer` method.
> We could merge these two methods in `ResultPartitionWriter` in order not to expose `getBufferProvider`. `ResultPartitionWriter` could internally request `BufferBuilder` and  add the created `BufferConsumer` into one sub partition, then return the `BufferBuilder` for `RecordWriter` writing serialized data.
> Since we also change the `ResultPartitionWriter#addBufferConsumer` to `ResultPartitionWriter#requestBufferBuilder`, then another new method `ResultPartitionWriter#broadcastEvents` should be introduced for handling the case of events.
> In future it might worth further abstracting the `ResultPartitionWriter` to be not only related to  `BufferBuilder`. We could provide `writeRecord(int targetIndex)` to replace `requestBufferBuilder`, then the serialization process could be done inside specific `ResultPartitionWriter` instance.



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