Github user Ben-Zvi commented on a diff in the pull request:
https://github.com/apache/drill/pull/822#discussion_r119748615
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/aggregate/HashAggTemplate.java
---
@@ -306,14 +685,29 @@ public AggOutcome doWork() {
while (true) {
// Cleanup the previous batch since we are done processing it.
+ long pre = allocator.getAllocatedMemory();
for (VectorWrapper<?> v : incoming) {
v.getValueVector().clear();
}
+ long beforeAlloc = allocator.getAllocatedMemory();
+
--- End diff --
The doWork() function's basic outline is the same as before; this code
change just peppered few lines of code in few places. I was trying to minimize
the change ....
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