Error initializing SparkContext : ‘sparkDriver’ failed after 16 retries!

Hi All, I just came across this error 'sparkDriver' failed after 16 retries!' while starting the spark shell. From the above screenshot, I came to know the error occurred due to the SparkUI port was not available. For this scenario I used Cloudera sandbox using Oracle VirtualBox. I just solved this issue by the following … Continue reading Error initializing SparkContext : ‘sparkDriver’ failed after 16 retries!

Apache Spark Streaming – Listen to a local streaming data using PySpark — Explained

Python : Anaconda Navigator – Create Environment and Installing Packages using Conda

HBase, a hadoop NoSQL database – Backup Process Explained

Hi Readers, I am happy to post another blog post on how to take HBase backup of a HBase data/ tables in hortonworks sandbox 2.5. Important:  You may get the following error in hbase shell. ERROR: Can't get master address from ZooKeeper; znode data == null Just open ambari(Hortonworks Sandbox) / cloudera manager(Cloudera Sandbox) start the … Continue reading HBase, a hadoop NoSQL database – Backup Process Explained