FAQ
Hi,

I have a question regarding quorum in context to
http://stackoverflow.com/questions/13022244/zookeeper-reliability-three-versus-five-nodes

Zookeeper requires that you have a quorum of servers up, where quorum is
ceil(N/2). For a 3 server ensemble, that means 2 servers must be up at any
time, for a 5 server ensemble, 3 servers need to be up at any time.

    1. what does quorum mean?
    2. so does ceil(N/2) mean 3+1/2 = 4/2 which is 2 servers in context to 3
    server ensemble and 5+1/2 = 6/2 which is 3 servers in context to 5 server
    ensemble if the ceil(N/2) is a ceiling function?
    3. what does ensemble mean in context to Apache zookeeper?

I would appreciate your help.

Regards,

Kaushal

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groupuser @
categorieszookeeper, hadoop
postedMay 29, '15 at 5:08p
activeMay 29, '15 at 7:38p
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Chris Nauroth: 2 posts Kaushal Shriyan: 2 posts

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