Thank you Neha, it's very helpful information!

I also read this article
For the section "Handling Failures", I am wondering some questions:

1. "The leader and the ISR for each partition are also stored in Zookeeper
and are used during the failover of the controller." What path does it be
stored ? Is there any way to see the information on zookeeper ?

2. If the controller fail, how does the new controller be elected ? Does it
be elected by Zookeeper ? How does Zookeeper decide which node should be
the controller ?

Many thanks!
On Fri, Aug 23, 2013 at 11:59 AM, Neha Narkhede <[EMAIL PROTECTED]>wrote:

Friendly regards,

*James Wu <>

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