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From "Konstantin Boudnik (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (IGNITE-1203) Cluster Discovery via ZooKeeper
Date Sat, 15 Aug 2015 19:51:45 GMT

    [ https://issues.apache.org/jira/browse/IGNITE-1203?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14698420#comment-14698420

Konstantin Boudnik commented on IGNITE-1203:

Actually, I don't feel anything about ZK. It's being bent out of the way it was initially
made for, but I guess ppl just found more use-cases for it ;) It has limitations and it's
a pain to manage a ZK cluster (and even using it on the client side, because of the awkward
locking implementations they have); and its algorithm is splitbrain-prone. But if it works
for some - I am not here to pass the judgment around ;)
And you said it right there:

bq. it's been a solid and stable technology whenever ... as long as the underlying network
is reliable
TCP-IP isn't a reliable protocol. This is the mistaken assumption that many ppl make. For
a dare consequences to them.

I am not on IRC or anything like that. And I want to stop hijacking this ticket for sideway
discussion. If you want to reach out - just drop me an email to my apache address. Thanks!

> Cluster Discovery via ZooKeeper
> -------------------------------
>                 Key: IGNITE-1203
>                 URL: https://issues.apache.org/jira/browse/IGNITE-1203
>             Project: Ignite
>          Issue Type: New Feature
>          Components: general
>            Reporter: Raúl Kripalani
>            Assignee: Valentin Kulichenko
>              Labels: discovery
> From their site:
> bq. ZooKeeper is a centralised service for maintaining configuration information, naming,
providing distributed synchronisation, and providing group services. 
> It is used by Kafka, Hadoop Yarn, HBase and many other technologies as a distributed
service registry and discovery directory.
> It would be nice to support cluster discovery via ZK.

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