Heartbeat lost for all Ambari services in HDP

The main reason behind Heartbeat lost for all Ambari services in HDP is, losing the connection between the ambari-server and ambari-agent. To fix this issue you can stop and start ambari-server and ambari-agent again in proper sequence. In this article I am going to explain step by step debugging process and solution. [Read more…]

Failed to execute goal org.codehaus.mojo:exec-maven-plugin

“Failed to execute goal org.codehaus.mojo:exec-maven-plugin”  throws by maven plugins. I start getting this error at the time when I was integrating my Java Application with Mulesoft API Manager. where I created one maven application using eclipse oxygen, JDK8 and Maven 3.3.9 as a complete development environment. After doing much Research and debugging I got the below solution for my case, please try following solution to come out of this… [Read more…]

blocked by: [FORBIDDEN/12/index read-only / allow delete (api)]

I was working around ELK (Elasticsearch, Logstash, and Kibana) stack in windows 10 environment for an end to end analytics. And when I tried to delete existing “Index Pattern” from Kibana, suddenly I started getting this error-  blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];: [cluster_block_exception] blocked by: [FORBIDDEN/12/index read-only / allow delete (api)];. But this is just a small issue of read/write access. [Read more…]

JHipster Installation steps

In continuation to our previous article this article contains complete “Jhipster Installation steps”. We will create a simple project using JHipster and at the end you will get to know how “JHipster” makes everything easier in application development. Before creating JHipster application you will need to download the softwares specified in the steps below. And I am also assuming that you already using Java8. [Read more…]