Ted Yu created SLIDER-226:
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Summary: 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
SLIDER-223 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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