[GitHub] [spark] WangGuangxin commented on a change in pull request #28780: [SPARK-31952][SQL]Fix incorrect memory spill metric when doing Aggregate

[GitBox]

WangGuangxin commented on a change in pull request #28780:
URL: https://github.com/apache/spark/pull/28780#discussion_r440108353



##########
File path: 
core/src/main/java/org/apache/spark/util/collection/unsafe/sort/UnsafeExternalSorter.java
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@@ -104,11 +104,13 @@ public static UnsafeExternalSorter 
createWithExistingInMemorySorter(
       int initialSize,
       long pageSizeBytes,
       int numElementsForSpillThreshold,
-      UnsafeInMemorySorter inMemorySorter) throws IOException {
+      UnsafeInMemorySorter inMemorySorter,
+      long existingMemoryConsumption) throws IOException {
     UnsafeExternalSorter sorter = new UnsafeExternalSorter(taskMemoryManager, 
blockManager,
       serializerManager, taskContext, recordComparatorSupplier, 
prefixComparator, initialSize,
         pageSizeBytes, numElementsForSpillThreshold, inMemorySorter, false /* 
ignored */);
     sorter.spill(Long.MAX_VALUE, sorter);
+    taskContext.taskMetrics().incMemoryBytesSpilled(existingMemoryConsumption);

Review comment:
       cc @maropu @cloud-fan 




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