why read operaions request at last forward to a leard?

[fuyou001]

Recently I have readed Zookeeer internal document,discover that a client may be follow below steps:
1:a client submits a Read/Write request to Zookeeper Server
2:if the Zookeeper Server is follower,forward to a leader
3:Leader executes and propagets status update
if a request is write operation is no problem.but why a read operation request must be forward to a Leader?

[Camille Fournier]

Read operations don't require a forward to the leader.

C

On Thu, Jul 19, 2012 at 11:24 PM, fuyou001 <[hidden email]> wrote:

> Recently I have readed Zookeeer internal document,discover that a client
> may
> be follow below steps:
>     1:a client submits a Read/Write request to Zookeeper Server
>     2:if the Zookeeper Server is follower,forward to a leader
>     3:Leader executes and propagets status update
>
>  if a request is write operation is no problem.but why a read operation
> request must be forward to a Leader?
>
>
>
> --
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