azagrebin commented on a change in pull request #7704: [FLINK-11604][network]
Extend the necessary methods in ResultPartitionWriter interface
URL: https://github.com/apache/flink/pull/7704#discussion_r257317570
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File path:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/api/writer/ResultPartitionWriter.java
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@@ -31,12 +37,26 @@
BufferProvider getBufferProvider();
+ BufferPool getBufferPool();
Review comment:
Regarding other methods:
`getNumberOfSubpartitions` and `getNumTargetKeyGroups` look like some
general piece of information about partition which should be already known
without `ShuffleService` from RPDD. Maybe `Environment.getWriter` should return
some wrapping general class `ResultPartition` which could contain common info
like those methods and `ResultPartitionWriter` produced by `ShuffleService`.
Also `getPartitionId` and `getPartitionType` look to be called only in
internals of `NetworkEnviroment` and anyways available in RPDD for `Task`.
`getAllSubPartitions` is used in `ResultPartitionMetrics` which might be
also specifics of `NetworkEnviroment`.
`createSubpartitionView` and `release` (used in `ResultPartitionManager`):
Should `ResultPartitionManager` actually inside `NetworkEnviroment` (future
`ShuffleService`)? It seems to be exactly at least one of the main roles of
`ShuffleService` and its `releasePartitionsProducedBy` and `shutdown` might be
rather associated with `ResultPartitionWriter.close` and `ShuffleService.close`.
`addBufferConsumer`, `flush`, `flushAll`, `finish` look like important
methods of `ResultPartitionWriter` interface used in `RecordWriter` and `Task`.
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