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Date: Sat, 27 Jun 2015 07:48:19 -0700
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Subject: Re: Hbase master selection doubt
From: Ted Yu <yuzhihong@gmail.com>
To: "user@hbase.apache.org" <user@hbase.apache.org>
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bq. non strictly consistency of Zookeeper

Can you elaborate on what the above means ?

please read this:
http://zookeeper.apache.org/doc/trunk/zookeeperProgrammers.html#ch_zkGuarantees

Cheers

On Sat, Jun 27, 2015 at 7:20 AM, Shushant Arora <shushantarora09@gmail.com>
wrote:

> How Hbase uses Zookeeper for Master selection and region server failure
> detection when Zookeeper is not strictly consistent.
>
> Say In Hbase Master selection process, how does a node is 100 % sure that a
> master is created ? Does it has to create the /master node and that node
> already exists will thow node exists excpetion .  Since only by reading (ls
> /) . It may get stale data and gets node does not exists.but in actual
> /master was present.
>
> Does there any issue with non strictly consistency of Zookeeper for Hbase?
>

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