[HBASE-4704] A JRuby script for identifying active master

• Type: Improvement
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Fix Version/s: 0.94.0
• Hadoop Flags: Reviewed
• Assignee: Mikhail Gryzykhin
• Reporter: Mikhail Gryzykhin
• Created: 31/Oct/11 03:29
• Updated: 12/Oct/12 05:35
• Resolved: 14/Nov/11 19:11

Description

This simple script reads the HBase master ZK node and outputs the hostname of the active master. This is needed so that operational scripts can decide where the primary master is running. I am also including a one-line hbase-jruby script so we can make our jruby scripts proper UNIX executables by including an "#!/usr/bin/env hbase-jruby" at the top.