What I See

Apache Kafka is a distributed streaming platform. Kafka 2.0 supports Kerberos authentication, Enabling Kerberos Authentication Using the Wizard on cloudera manager. Courtesy - Apache Kafka Before we start a little about kafka . We think of a streaming platform as having three key capabilities: It lets you publish and subscribe to streams of records. In this respect it is similar to a message queue or enterprise messaging system. It lets you store streams of records in a fault-tolerant way. It lets you process streams of records as they occur. What is Kafka good for? It gets used for two broad classes of application: Building real-time streaming data pipelines that reliably get data between systems or applications Building real-time streaming applications that transform or react to the streams of data To understand how Kafka does these things, let’s dive in and explore Kafka’s capabilities from the bottom up. First a few concepts: Kafka is run as a cluster on o

We had recently built a cluster using cloudera API’s and had all the services running on it with Kerberos enabled. Next we had a requirement to add another kafka cluster to our already exsisting cluster in cloudera manager. Since it is a quick task to get the zookeeper and kafka up and running. We decided to get this done using the cloudera manager instead of the API’s. But we faced the Duplicate entry 'zookeeper' for key 'NAME' issue as described in the bug below. https://issues.cloudera.org/browse/DISTRO-790 I have set up two clusters that share a Cloudera Manger. The first I set up with the API and created the services with capital letter names, e.g., ZOOKEEPER, HDFS, HIVE. Now, I add the second cluster using the Wizard. Add Cluster->Select Hosts->Distribute Parcels->Select base HDFS Cluster install On the next page i get SQL errros telling that the services i want to add already exist. I suspect that the check for existing service names does n