[jira] [Updated] (HBASE-4704) A JRuby script for identifying active master

["Phabricator (Updated) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4704?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Phabricator updated HBASE-4704:
-------------------------------

    Attachment: HBASE-4704.D117.2.patch

mbautin updated the revision "HBASE-4704 [jira] A JRuby script for identifying active master".
Reviewers: Kannan, Liyin, JIRA

  Fixing the script to actually work on trunk. Tested on a dev cluster, killed the master, tested again, got "Master not running" after znode expiration. Hacked the script to use incorrect ZK port, got a ZK exception and a nonzero error code, as expected.

REVISION DETAIL
  https://reviews.facebook.net/D117

AFFECTED FILES
  bin/get-active-master.rb
  bin/hbase-jruby

                
> A JRuby script for identifying active master
> --------------------------------------------
>
>                 Key: HBASE-4704
>                 URL: https://issues.apache.org/jira/browse/HBASE-4704
>             Project: HBase
>          Issue Type: Improvement
>            Reporter: Mikhail Bautin
>            Assignee: Mikhail Bautin
>            Priority: Trivial
>             Fix For: 0.94.0
>
>         Attachments: D117.1.patch, HBASE-4704.D117.2.patch
>
>
> 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.

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