After seeing your post, I found a good information that can be helpful for you. Nayeli is the person you can contact for more free samples. You can send email to her or call her instead.(nayeli@wis-connector.com/ her number as well: TW:+886-2-2790-1979 #66 US: +1 (407) 282-3220 UK: +44-2033896967) You can use some connectors to diversify your ideas. Recently Wisconn Techonolgy, an international connector company offers good quality products. You can search on their web to see whether there are what you need. https://www.wis-connector.com/ By the way, Good luck for finding what you need. ... View more

@Jay SenSharma Restarting ambari-server did it for me. Thanks ... View more

The issue was a cyclic link where HDF 2.1.3 linked /etc/nifi/conf to /usr/hdf/current/nifi/conf while HDF 2.1.2 was linking the other way round. Deleting the previous link resolved the issue. HDF 2.1.2 installed and controllers are fine. Thanks for your guidance @Matt Clarke ... View more

Thanks @Jay SenSharma and @Willem Conradie I did put in some dummy properties for the configs but only managed to get past all the errors by removing Atlas service. ... View more

thanks @Matt Clarke. Will downgrade asap. ... View more

read alsto about a limitation of Python.. ... View more

I'd also post this question on the Ambari track to check why Ambari didn't detect the DataNodes doing down. Also from your logs it is hard to say why the DataNode went down. I again recommend increasing the DataNode heap allocation via Ambari. Also check that your nodes are provisioned with sufficient amount of RAM. ... View more

Thank you @Matt Clarke. ... View more