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From Zili Chen <wander4...@gmail.com>
Subject [SURVEY] How do you use high-availability services in Flink?
Date Wed, 21 Aug 2019 07:32:22 GMT
Hi guys,

We want to have an accurate idea of how users actually use
high-availability services in Flink, especially how you customize
high-availability services by HighAvailabilityServicesFactory.

Basically there are standalone impl., zookeeper impl., embedded impl.
used in MiniCluster, YARN impl. not yet implemented, and a gate to
customized implementations.

Generally I think standalone impl. and zookeeper impl. are the most
widely used implementations. The embedded impl. is used without
awareness when users run a MiniCluster.

Besides that, it is helpful to know how you guys customize
high-availability services using HighAvailabilityServicesFactory
interface for the ongoing FLINK-10333[1] which would evolve
high-availability services in Flink. As well as whether there is any
user take interest in the not yet implemented YARN impl..

Any user case should be helpful. I really appreciate your time and your


[1] https://issues.apache.org/jira/browse/FLINK-10333

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