liuzqt commented on code in PR #47192:
URL: https://github.com/apache/spark/pull/47192#discussion_r1667111116
##########
core/src/main/java/org/apache/spark/memory/TaskMemoryManager.java:
##########
@@ -507,4 +525,19 @@ public long getMemoryConsumptionForThisTask() {
public MemoryMode getTungstenMemoryMode() {
return tungstenMemoryMode;
}
+
+ /**
+ * Returns peak task-level off-heap memory usage in bytes.
+ *
+ */
+ public long getPeakOnHeapExecutionMemory() {
+ return peakOnHeapMemory;
+ }
Review Comment:
So far I think it's safe, as you mentioned, only invoked at the end of task.
But no harm to add `volatile`, in case we might have race condition in the
future if we add other use case.
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core/src/main/scala/org/apache/spark/executor/TaskMetrics.scala:
##########
@@ -111,8 +113,14 @@ class TaskMetrics private[spark] () extends Serializable {
* across all such data structures created in this task. For SQL jobs, this
only tracks all
* unsafe operators and ExternalSort.
*/
+ // TODO: SPARK-48789: the naming is confusing since this does not really
reflect the whole
Review Comment:
Updated
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