otterc commented on a change in pull request #30433:
URL: https://github.com/apache/spark/pull/30433#discussion_r539516440
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File path:
common/network-shuffle/src/main/java/org/apache/spark/network/shuffle/RemoteBlockPushResolver.java
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@@ -370,26 +391,19 @@ public MergeStatuses
finalizeShuffleMerge(FinalizeShuffleMerge msg) throws IOExc
new MergeStatuses(msg.shuffleId, new RoaringBitmap[0], new int[0], new
long[0]);
} else {
Collection<AppShufflePartitionInfo> partitionsToFinalize =
shufflePartitions.values();
- int totalPartitions = partitionsToFinalize.size();
- RoaringBitmap[] bitmaps = new RoaringBitmap[totalPartitions];
- int[] reduceIds = new int[totalPartitions];
- long[] sizes = new long[totalPartitions];
+ List<RoaringBitmap> bitmaps = new
ArrayList<>(partitionsToFinalize.size());
+ List<Integer> reduceIds = new ArrayList<>(partitionsToFinalize.size());
+ List<Long> sizes = new ArrayList<>(partitionsToFinalize.size());
Review comment:
I think that was my mistake. I changed it overlooking the fact that
there could be fewer partitions because of the exceptions when truncating data
file or updating index/meta.
I don't think it is better to have `null`s in the array that is returned
though.
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