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