weijietong 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_r232918469
##########
File path:
exec/java-exec/src/main/java/org/apache/drill/exec/ops/FragmentContextImpl.java
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@@ -136,8 +143,8 @@ public void interrupt(final InterruptedException e) {
private final AccountingUserConnection accountingUserConnection;
/** Stores constants and their holders by type */
private final Map<String, Map<MinorType, ValueHolder>>
constantValueHolderCache;
-
- private RuntimeFilterSink runtimeFilterSink;
+ private Map<Long, RuntimeFilterWritable> rfIdentifier2RFW = new
ConcurrentHashMap<>();
+ private Map<Long, Boolean> rfIdentifier2fetched = new ConcurrentHashMap<>();
Review comment:
It can't be replaced by the `rfIdentifier2RFW ` thorough setting the value
to null. Since we need to decrease the reference number of the received RFW's
Drillbuf to keep reference number count balance, we should keep the RFW object
reference to do the decreasing at the `closeReceivedRFWs ` . Further, we need
to do the decreasing even it has been consumed to keep reference number balance.
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