A Hadoop Cluster @Home : UnInstalling a Hadoop Cluster

Stop all Hadoop services (before uninstalling the Cloudera Manager Server and Agents)

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[For each Cloudera Management Service entry, click Actions and click Stop…. Click Stop in the confirmation screen]

Deactivate and remove Parcels ( if used for CDH installation.)

CM : Hosts -> Parcels

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Uninstall the Cloudera Manager Server

If installed the Cloudera Manager Server using cloudera-manager-installer.bin,

run the following command on the Cloudera Manager Server host:

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On all Agent hosts, uninstall CDH and the Cloudera Manager Agents

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On all Agent hosts, remove all Cloudera Manager data.

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On all Agent hosts, kill any running Cloudera Manager and Hadoop processes.

for u in hdfs mapred cloudera-scm hbase hue zookeeper oozie hive impala flume; do sudo kill $(ps -u $u -o pid=); done

Remove the Cloudera Manager lock file.

rm /tmp/.scm_prepare_node.lock

DONE!!

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About shalishvj : My Experience with BigData

6+ years of experience using Bigdata technologies in Architect, Developer and Administrator roles for various clients. • Experience using Hortonworks, Cloudera, AWS distributions. • Cloudera Certified Developer for Hadoop. • Cloudera Certified Administrator for Hadoop. • Spark Certification from Big Data Spark Foundations. • SCJP, OCWCD. • Experience in setting up Hadoop clusters in PROD, DR, UAT , DEV environments.
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