cloud-fan commented on a change in pull request #32401:
URL: https://github.com/apache/spark/pull/32401#discussion_r648090701
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File path:
core/src/main/java/org/apache/spark/shuffle/sort/BypassMergeSortShuffleWriter.java
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@@ -164,6 +180,13 @@ public void write(Iterator<Product2<K, V>> records) throws
IOException {
}
partitionLengths = writePartitionedData(mapOutputWriter);
+ if (checksumEnabled) {
+ long[] checksums = new long[numPartitions];
+ for (int i = 0; i < numPartitions; i ++) {
+ checksums[i] = partitionChecksums[i].getValue();
+ }
+ IndexShuffleBlockResolver.get().writeChecksumFile(shuffleId, mapId,
checksums);
Review comment:
How do we write the shuffle index file right now? In this method, we
also calculate the partition lengths but we don't write the index file
immediately.
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