I am using the latest Spark master and additionally, I am loading these jars: - spark-streaming-twitter_2.10-1.1.0-SNAPSHOT.jar - twitter4j-core-4.0.2.jar - twitter4j-stream-4.0.2.jar
My simple test program that I execute in the shell looks as follows:
import org.apache.spark.streaming._
import org.apache.spark.streaming.twitter._
import org.apache.spark.streaming.StreamingContext._
System.setProperty("twitter4j.oauth.consumerKey", "jXgXF...")
System.setProperty("twitter4j.oauth.consumerSecret", "mWPvQRl1....")
System.setProperty("twitter4j.oauth.accessToken", "26176....")
System.setProperty("twitter4j.oauth.accessTokenSecret", "J8Fcosm4...")
var ssc = new StreamingContext(sc, Seconds(1))
var tweets = TwitterUtils.createStream(ssc, None)
var statuses = tweets.map(_.getText)
statuses.print()
ssc.start()
However, I won't get any tweets. The main error I see is
14/08/04 10:52:35 ERROR scheduler.ReceiverTracker: Deregistered receiver for stream 0: Error starting receiver 0 - java.lang.NoSuchMethodError: twitter4j.TwitterStream.addListener(Ltwitter4j/StatusListener;)V
at org.apache.spark.streaming.twitter.TwitterReceiver.onStart(TwitterInputDStream.scala:72)
....
And then for each iteration:
INFO scheduler.ReceiverTracker: Stream 0 received 0 blocks
I'm not sure where the problem lies. How can I verify that my twitter credentials are correctly recognized? Might there be another jar missing?
NoSuchMethodError should always cause you to ask whether you are running with the same versions of libraries and classes that you compiled with.
If you look at the pom.xml file for the Spark examples module, you'll see that it uses twitter4j 3.0.3. You're bringing incompatible 4.0.2 with you at runtime and that breaks it.