Project: springxd
Issue XD-2187: testHdfsSink  sporadically fails because twitter data is written to file.
The hdfs sink needs to have a unique stream name. Because the twitterSearch test uses the "defaultName" and it may broadcast more than one message to the sink for the search. So when the stream is destroyed the message is abandoned until hdfsTest starts up using the same "defaultName" and the message is delivered to hdfs sink and thus the twitter data is written to the file.
Story points: 3