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https://issues.apache.org/jira/browse/DRILL-6340?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16506736#comment-16506736
]
ASF GitHub Bot commented on DRILL-6340:
---------------------------------------
ilooner commented on a change in pull request #1302: DRILL-6340: Output Batch
Control in Project using the RecordBatchSizer
URL: https://github.com/apache/drill/pull/1302#discussion_r194206547
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/physical/impl/project/ProjectRecordBatch.java
##########
@@ -230,18 +265,37 @@ protected IterOutcome doWork() {
container.buildSchema(SelectionVectorMode.NONE);
}
+ memoryManager.updateOutgoingStats(outputRecords);
+ if (logger.isDebugEnabled()) {
+ logger.debug("BATCH_STATS, outgoing: {}", new RecordBatchSizer(this));
+ }
// Get the final outcome based on hasRemainder since that will determine
if all the incoming records were
// consumed in current output batch or not
return getFinalOutcome(hasRemainder);
}
private void handleRemainder() {
final int remainingRecordCount = incoming.getRecordCount() -
remainderIndex;
- if (!doAlloc(remainingRecordCount)) {
+ assert this.memoryManager.incomingBatch == incoming;
+ final int recordsToProcess = Math.min(remainingRecordCount,
memoryManager.getOutputRowCount());
+
+ if (!doAlloc(recordsToProcess)) {
outOfMemory = true;
return;
}
- final int projRecords = projector.projectRecords(remainderIndex,
remainingRecordCount, 0);
+ if (logger.isTraceEnabled()) {
+ logger.trace("handleRemainder: remaining RC " + remainingRecordCount + "
toProcess " + recordsToProcess
Review comment:
{}
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> Output Batch Control in Project using the RecordBatchSizer
> ----------------------------------------------------------
>
> Key: DRILL-6340
> URL: https://issues.apache.org/jira/browse/DRILL-6340
> Project: Apache Drill
> Issue Type: Improvement
> Components: Execution - Relational Operators
> Reporter: Karthikeyan Manivannan
> Assignee: Karthikeyan Manivannan
> Priority: Major
> Fix For: 1.14.0
>
>
> This bug is for tracking the changes required to implement Output Batch
> Sizing in Project using the RecordBatchSizer. The challenge in doing this
> mainly lies in dealing with expressions that produce variable-length columns.
> The following doc talks about some of the design approaches for dealing with
> such variable-length columns.
> [https://docs.google.com/document/d/1h0WsQsen6xqqAyyYSrtiAniQpVZGmQNQqC1I2DJaxAA/edit?usp=sharing]
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