Tools for Hadoop disaster recovery

This is a set of scripts that interacts with the Ranger REST API to transfer and compare policies of two clusters. Have a look at the README.md in the rangercli subdirectory for more details.

This directory contains a few XML files serving as examples...

• for creating a cluster entity in Falcon (cluster_example.xml)

• for creating a mirror process between two clusters (mirror_example.dms)

This is simple sample script that does the following:

• connects to MySQL server
• dumps content of "hive" database on disk (per default in /tmp/ directory)
• changes cluster name
• imports dump to backup MySQL server
• clean up

• Environment variables must be set

  CLUSTERNAME, HIVE_USER, HIVE_PASSWORD, MYSQL_HOST,
  CLUSTERNAME2, HIVE_USER2, HIVE_PASSWORD2, MYSQL_HOST2
  

• Network connectivity to both hosts on port 3306 must be given.
• User need to be allowed to connect to hive database on both servers from server the script is executed from.

Make sure script has execute permissions.

./hive-schema-copy.sh