Hi sowen   We actually have the same problem of filed to bind with the internal ip-port 10.1.0.11:50321.   The question is that sometimes connect Spark Streaming with the port and sometimes didn´t it and when the did not connect sometimes in 5 -7 min that Spark Streaming is trying connect.   Do you know what is the possible cause?   We install Spark 1.5.1 on clouderas 5.3.7 (with YARN).   Best regards ... View more