Dealing with ‘Blocks with no live replicas’ in the HDFS

In a previous post, we dealt about ‘Under-replicated blocks in the HDFS‘. However, while decommissioning a couple of worker nodes, … More

How to change mysql version for ambari connections?

CentOS generally comes with mysql-connector-java-5.1.17.jar. However, there are many known bugs with the same. Hortonworks suggests updating the jar to … More

Forgot ‘ambari’ password?

Working with multiple clusters at the same time can sometimes mean too many passwords to make note of! While for the … More