wankunde commented on PR #40339:
URL: https://github.com/apache/spark/pull/40339#issuecomment-1599100107
We can reduce the network IO with local shuffle. Could we use parameter for
different kind of PartitionSpec ?
Like
```java
case PartialReducerPartitionSpec(_, startMapIndex, endMapIndex, _) =>
if (!shuffleLocalityEnabled) return Nil
tracker.getMapLocation(dependency, startMapIndex, endMapIndex)
case PartialMapperPartitionSpec(mapIndex, _, _) =>
if (!localShuffleLocalityEnabled) return Nil
tracker.getMapLocation(dependency, mapIndex, mapIndex + 1)
case CoalescedMapperPartitionSpec(startMapIndex, endMapIndex,
numReducers) =>
if (!localShuffleLocalityEnabled) return Nil
tracker.getMapLocation(dependency, startMapIndex, endMapIndex)
```
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