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From tommy xiao <xia...@gmail.com>
Subject Re: How to measure the ZooKeeper Resilience on mesos cluster
Date Thu, 06 Aug 2015 15:30:01 GMT
Hi Marco,

Thanks for your nice comments. it already clear my confuse. Thanks.

2015-08-04 11:32 GMT+08:00 Marco Massenzio <marco@mesosphere.io>:

> Distributed systems are hard - but most importantly, they all differ in
> various ways.
>
> >  I feel the zookeeper is almost unstable for a cluster.
>
> this is too a general and vague statement to be either true or false (or
> provide any guidance): it all depends on how you deploy your ensemble, what
> hardware it runs on, what virtualization layer you use, how do you manage
> failovers and recovery.
>
> But, way more importantly, it all depends on *your* requirements: a
> configuration that works perfectly fine for a few hundred nodes,
> distributed across 2-3 DCs in a geographically "contained" region (eg,
> North America) would be woefully inadequate for a system running across 6
> global DCs, covering several thousand of nodes, with tight latency
> requirements.
>
> Outside of Google (where we would use our "own stuff" - Borg, Chubby &
> friends) I've never really had any trouble with ZK - then again, maybe the
> stuff I worked on, was nowhere near as complex as what you're trying to
> achieve.
>
> My suggestion would be to try it out on a staging environment, conduct
> some performance and stress test, and find out whether the performance,
> stability and availability of the ZK ensemble (and, consequently, of the
> Mesos cluster) meet your requirements.
>
> Hope this helps.
>
> *Marco Massenzio*
> *Distributed Systems Engineer*
>
> On Sun, Aug 2, 2015 at 10:15 AM, tommy xiao <xiaods@gmail.com> wrote:
>
>> today i reading  ZooKeeper Resilience at Pinterest (
>> https://engineering.pinterest.com/blog/zookeeper-resilience-pinterest?route=/post/%3Aid/%3Asummary),
>>  I feel the zookeeper is almost unstable for a cluster.
>>
>> Does anyone have some experience with the zookeeper usage?
>>
>> --
>> Deshi Xiao
>> Twitter: xds2000
>> E-mail: xiaods(AT)gmail.com
>>
>
>


-- 
Deshi Xiao
Twitter: xds2000
E-mail: xiaods(AT)gmail.com

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