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https://issues.apache.org/jira/browse/DRILL-6147?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16518448#comment-16518448
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ASF GitHub Bot commented on DRILL-6147:
---------------------------------------
vrozov commented on a change in pull request #1330: DRILL-6147: Adding Columnar
Parquet Batch Sizing functionality
URL: https://github.com/apache/drill/pull/1330#discussion_r196895612
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/columnreaders/PageReader.java
##########
@@ -335,7 +335,7 @@ public boolean next() throws IOException {
readPosInBytes = in.position();
repetitionLevels.readInteger();
}
- if (parentColumnReader.columnDescriptor.getMaxDefinitionLevel() != 0) {
+ if (parentColumnReader.columnDescriptor.getMaxDefinitionLevel() != 0){
Review comment:
Please avoid format only changes.
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> Limit batch size for Flat Parquet Reader
> ----------------------------------------
>
> Key: DRILL-6147
> URL: https://issues.apache.org/jira/browse/DRILL-6147
> Project: Apache Drill
> Issue Type: Improvement
> Components: Storage - Parquet
> Reporter: salim achouche
> Assignee: salim achouche
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.14.0
>
>
> The Parquet reader currently uses a hard-coded batch size limit (32k rows)
> when creating scan batches; there is no parameter nor any logic for
> controlling the amount of memory used. This enhancement will allow Drill to
> take an extra input parameter to control direct memory usage.
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