I think you have to check the log on the zookeeper side, my advice is to increase the value of "nifi.zookeeper.connect.timeout" and "nifi.zookeeper.session.timeout" settings. Also check your network connection between the Zookeeper servers and Nifi servers, Network latency can cause the issue. ... View more

Thanks, it's useful ... View more

Hello I've just add these two line below under security section and it works [security] ssl_verify_cert=0 force_https_protocol=PROTOCOL_TLSv1_2 ... View more

Hello I've just add these two line below under security section and it works [security] ssl_verify_cert=0 force_https_protocol=PROTOCOL_TLSv1_2 ... View more

Hello, Anyone have an idea about nifi registry databases, how to backup that database ? you can locate that database by the "nifi.registry.db.directory" proporities ... View more

My solution is to add spark.jars Property to spark 1.6 config. spark.jars='path-to-jar' (you can use any path) and I copy spark-csv jar (spark-csv_2.10-1.5.0.jar) and its dependancy (commons-csv-1.1.jar, univocity-parsers-1.5.1.jar) to the path-to-jar ... View more

Adel, I have the same issue, I have spark1.6 and I need to use spark-csv, can you tell me what I need to do please. and for Zeppelin, does it work fot you? ... View more

Thanks Matt, but my servers cannot access to the internet, I donwload the sapark-csv jar and copy it to spark server, I'm looking to know how does spark locate the folder which contain the saprk-csv JAR !!! ... View more