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https://issues.apache.org/jira/browse/DRILL-6792?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16670952#comment-16670952
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ASF GitHub Bot commented on DRILL-6792:
---------------------------------------

sohami commented on a change in pull request #1504: DRILL-6792: Find the right 
probe side fragment wrapper & fix DrillBuf…
URL: https://github.com/apache/drill/pull/1504#discussion_r229909442
 
 

 ##########
 File path: 
exec/java-exec/src/main/java/org/apache/drill/exec/work/filter/RuntimeFilterSink.java
 ##########
 @@ -115,7 +98,8 @@ public void aggregate(RuntimeFilterWritable 
runtimeFilterWritable) {
   public RuntimeFilterWritable fetchLatestDuplicatedAggregatedOne() {
     try {
       aggregatedRFLock.lock();
-      return aggregated.duplicate(bufferAllocator);
+      RuntimeFilterWritable duplicated = aggregated.duplicate(bufferAllocator);
 
 Review comment:
   This class is not required anymore. It's only used in tests where we should 
replace the reference with correct implementation. Basically update the test 
implementation of [this 
method](https://github.com/apache/drill/blob/master/exec/java-exec/src/main/java/org/apache/drill/exec/ops/FragmentContext.java#L172)

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> Find the right probe side fragment to any storage plugin
> --------------------------------------------------------
>
>                 Key: DRILL-6792
>                 URL: https://issues.apache.org/jira/browse/DRILL-6792
>             Project: Apache Drill
>          Issue Type: Improvement
>          Components: Execution - Flow
>            Reporter: weijie.tong
>            Assignee: weijie.tong
>            Priority: Major
>             Fix For: 1.15.0
>
>
> The current implementation of JPPD to find the probe side wrapper depends on 
> the GroupScan's digest. But there's no promise the GroupScan's digest will 
> not be changed since it is attached to the RuntimeFilterDef by different 
> storage plugin implementation logic.So here we assign a unique identifier to 
> the RuntimeFilter operator, and find the right probe side fragment wrapper by 
> the runtime filter identifier at the RuntimeFilterRouter class. 



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