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ASF GitHub Bot commented on DRILL-5457: --------------------------------------- Github user Ben-Zvi commented on a diff in the pull request: https://github.com/apache/drill/pull/822#discussion_r119748791 --- 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(); + + // Get the next RecordBatch from the incoming IterOutcome out = outgoing.next(0, incoming); + + // If incoming batch is bigger than our estimate - adjust the estimate + long afterAlloc = allocator.getAllocatedMemory(); + long incomingBatchSize = afterAlloc - beforeAlloc; + if ( /* ! handlingSpills && */ estMaxBatchSize < incomingBatchSize ) { + logger.trace("Found a bigger incoming batch: {} , prior estimate was: {}",incomingBatchSize,estMaxBatchSize); + estMaxBatchSize = incomingBatchSize; + } + if (EXTRA_DEBUG_1) { logger.debug("Received IterOutcome of {}", out); } switch (out) { + case RESTART: + logger.warn("HASH AGG: doWork got a RESTART..."); --- End diff -- This code (and the RESTART state) was eliminated .... > Support Spill to Disk for the Hash Aggregate Operator > ----------------------------------------------------- > > Key: DRILL-5457 > URL: https://issues.apache.org/jira/browse/DRILL-5457 > Project: Apache Drill > Issue Type: Improvement > Components: Execution - Relational Operators > Affects Versions: 1.10.0 > Reporter: Boaz Ben-Zvi > Assignee: Boaz Ben-Zvi > Fix For: 1.11.0 > > > Support gradual spilling memory to disk as the available memory gets too > small to allow in memory work for the Hash Aggregate Operator. -- This message was sent by Atlassian JIRA (v6.3.15#6346)