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Posted to dev@slider.apache.org by "Steve Loughran (JIRA)" <ji...@apache.org> on 2014/09/12 19:56:34 UTC

[jira] [Updated] (SLIDER-226) Provide mechanism for rolling upgrade

     [ https://issues.apache.org/jira/browse/SLIDER-226?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Steve Loughran updated SLIDER-226:
----------------------------------
    Fix Version/s: Slider 2.0.0

> Provide mechanism for rolling upgrade
> -------------------------------------
>
>                 Key: SLIDER-226
>                 URL: https://issues.apache.org/jira/browse/SLIDER-226
>             Project: Slider
>          Issue Type: Improvement
>            Reporter: Ted Yu
>             Fix For: Slider 2.0.0
>
>
> update action paves the road for supporting rolling upgrade on Slider deployed cluster.
> User can specify a different image for a running cluster with N instances for role R.
> The rolling upgrade would restart each of the N instances while maintaining the invariant that there're at least N-1 active instances for role R.
> After restart, new image would be effective.
> This capability would, e.g., allow HBase to perform compatibility check across releases.



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