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From Lei Gao <l...@linkedin.com>
Subject Question on maintaining leader/membership status in zookeeper
Date Fri, 30 Apr 2010 18:56:11 GMT

I have a general question on how zookeeper can maintain its view of the user cluster (that
zookeeper manages) that is consistent with the nodes in the user cluster. In other words,
when zookeeper considers the current leader is unavailable, does it really guarantee that
a majority of nodes in the user cluster can’t reach the current leader? The same question
applies to the membership service as well. Because the zookeeper can be partitioned from a
majority of the nodes in the user cluster. How does the zookeeper handle situations like this?



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