Github user Ben-Zvi commented on a diff in the pull request:
https://github.com/apache/drill/pull/761#discussion_r103068095
--- Diff:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/xsort/managed/ExternalSortBatch.java
---
@@ -765,12 +838,12 @@ private void processBatch() {
spillFromMemory();
}
- // Sanity check. We should now be above the spill point.
+ // Sanity check. We should now be below the buffer memory maximum.
long startMem = allocator.getAllocatedMemory();
- if (memoryLimit - startMem < spillPoint) {
- logger.error( "ERROR: Failed to spill below the spill point. Spill
point = {}, free memory = {}",
- spillPoint, memoryLimit - startMem);
+ if (startMem > bufferMemoryPool) {
+ logger.error( "ERROR: Failed to spill above buffer limit. Buffer
pool = {}, memory = {}",
+ bufferMemoryPool, startMem);
--- End diff --
Do we need to return or throw an exception here ?
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