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From arp57 <>
Subject Re: Zookeeper for replicated LevelDB
Date Wed, 05 Nov 2014 07:13:14 GMT
>From the documentation  here
<>  :

All messaging operations which require a sync to disk will wait for the
update to be replicated to a quorum of the nodes before completing. So if
you configure the store with replicas="3" then the quorum size is (3/2+1)=2.
The master will store the update locally and wait for 1 other slave to store
the update before reporting success. Another way to think about it is that
store will do synchronous replication to a quorum of the replication nodes
and asynchronous replication replication to any additional nodes.

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