[jira] [Resolved] (HBASE-4442) Provide test script to do rolling restart of RSs, master and do verification

["Andrew Purtell (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HBASE-4442?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrew Purtell resolved HBASE-4442.
-----------------------------------
    Resolution: Incomplete
      Assignee:     (was: Michael Weng)

> Provide test script to do rolling restart of RSs, master and do verification
> ----------------------------------------------------------------------------
>
>                 Key: HBASE-4442
>                 URL: https://issues.apache.org/jira/browse/HBASE-4442
>             Project: HBase
>          Issue Type: Improvement
>          Components: test
>            Reporter: Ming Ma
>
> We use a script that restart RS on a rolling fashion and found couple new issues in HBase in the area of server shutdown and region assignments. Running such test on a cluster will help to verify changes made in the area of server shutdown and regions assignment. The script could do the followings:
> 1. Based on the cluster config file, get the list of RSs and master server.
> 2. Restart RSs and Master periodically. The parameters like the sleep time between stop and start, the percentage of machines down at at given time, etc. should be configurable. 
> 3. Use hbck or other ways to verify the cluster is moving. There will be inconsistency at a given time when you have lots of regions in transition. So that is ok. Script should mark test failure only when things aren't moving, for example, .META. isn't online for > timeoutmonitor period.



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