Github user satishd commented on a diff in the pull request:
https://github.com/apache/storm/pull/2019#discussion_r106795805
--- Diff: storm-core/src/jvm/org/apache/storm/bolt/JoinBolt.java ---
@@ -191,9 +191,9 @@ public void execute(TupleWindow inputWindow) {
for (ResultRecord resultRecord : joinResult.getRecords()) {
ArrayList<Object> outputTuple = resultRecord.getOutputFields();
if ( outputStreamName==null )
- collector.emit( outputTuple );
+ collector.emit( resultRecord.tupleList, outputTuple );
--- End diff --
It may be good to add a comment here, saying that anchoring with only
matched input tuples as .
`WindowedOutputCollector` anchors with all the incoming tuples.
For others to understand the issue, collector used here is
[`WindowedOutputCollector`](https://github.com/apache/storm/blob/master/storm-core/src/jvm/org/apache/storm/topology/WindowedBoltExecutor.java#L31)
and it emits output tuple by anchoring with all the input tuples with in that
window.
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