@haco fayik Can you validate with the below command which will run sequentially the process # sudo yum clean all && yum repolist && sudo yum install -y ambari-server HTH ... View more

In the above Architecture, there is no nifi !! Apache NiFi and Apache Kafka are two different tools with different use-cases that may slightly overlap. Combining tools may appear wasteful, as it seems to introduce some overlap in functionality. For example, both NiFi and Kafka provide brokers to connect producers and consumers. However, they do so differently: in NiFi, the bulk of the data flow logic lays not inside the producer/consumer, but lives in the broker, allowing for centralized control. NiFi was built to do one important thing well: data flow management. With both tools combined, NiFi can take advantage of Kafka’s reliable stream data storage, while taking care of the data flow challenges that Kafka was not designed to solve. HTH If you found this answer addressed your question, please take a moment to log in and click the "accept" link on the answer. ... View more

@Vinay Can you disable the HDP* repos by changing the path enable from 1 to zero see below [HDP-2.6-repo-51] name=HDP-2.6-repo-51 baseurl=http://10.26.35.16/iso/2.6.5/HDP/centos7/2.6.5.0-292 path=enabled=0 gpgcheck=0'} Then run # yum clean all And try restarting the services through Ambari , ... View more