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https://issues.apache.org/jira/browse/DRILL-6410?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16474646#comment-16474646
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ASF GitHub Bot commented on DRILL-6410:
---------------------------------------
vrozov commented on a change in pull request #1257: DRILL-6410: Fixed memory
leak in flat Parquet reader
URL: https://github.com/apache/drill/pull/1257#discussion_r188062899
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/store/parquet/columnreaders/AsyncPageReader.java
##########
@@ -297,11 +297,11 @@ private void waitForExecutionResult() throws
InterruptedException, ExecutionExce
while (asyncPageRead != null && !asyncPageRead.isEmpty()) {
try {
Future<Void> f = asyncPageRead.poll();
- if(!f.isDone() && !f.isCancelled()){
+ if(!f.isDone() && !f.isCancelled()) {
f.cancel(true);
- } else {
- f.get(1, TimeUnit.MILLISECONDS);
}
+ // The framework guarantees a blocking version of FutureTask
cancellation. At this time we are
Review comment:
I suggest to agree on a unified approach. Having two different
implementations for the same functionality is, IMO, undesirable.
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> Memory leak in Parquet Reader during cancellation
> -------------------------------------------------
>
> Key: DRILL-6410
> URL: https://issues.apache.org/jira/browse/DRILL-6410
> Project: Apache Drill
> Issue Type: Bug
> Components: Storage - Parquet
> Reporter: salim achouche
> Assignee: salim achouche
> Priority: Major
>
> Occasionally, a memory leak is observed within the flat Parquet reader when
> query cancellation is invoked.
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