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From Chris Wildman <cwild...@newrelic.com>
Subject Flink Upgrades and Job Upgrades
Date Fri, 27 May 2016 21:35:39 GMT

I have two questions around Flink deployment. I have done some research but
I wanted to confirm my conclusions.

1) Is it possible to do a live upgrade of a Flink cluster from one version
to the next without having to take down the entire cluster? (Imagining a
rolling deploy where we only take down one JobManager or TaskManager at a
time while the rest of the system continues)

2) Is it possible to upgrade a streaming dataflow without having to stop
it? I see mention of "Versioning for DataStream programs" on the roadmap

Assuming these are not available today are they on the roadmap for the
future? Any projected release that might have this functionality?


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