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https://issues.apache.org/jira/browse/FLINK-2366?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14629373#comment-14629373
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Paris Carbone commented on FLINK-2366:
--------------------------------------

That's a tough one! ^^
If you mean using something else, we could use a transactional persistent 
database which has the same impact with zookeeper (perhaps better throughput).
If on the other hand you mean creating something totally custom that can be 
pretty tricky as Till mentioned. We need leader election, 2-phase paxos commit 
etc. These things are already solved by zookeeper


> HA Without ZooKeeper
> --------------------
>
>                 Key: FLINK-2366
>                 URL: https://issues.apache.org/jira/browse/FLINK-2366
>             Project: Flink
>          Issue Type: Improvement
>            Reporter: Suminda Dharmasena
>            Priority: Minor
>
> Please provide a way to do HA without having to use ZK.



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