Thanks a lot Ted and Benjamin.

On Mon, Jul 12, 2010 at 3:01 PM, Benjamin Reed <br...@yahoo-inc.com> wrote:

> ted is correct, as usual. that warning is really to avoid unnecessary load,
> and 16 clients really don't generate much of a load at all. even with
> thousands of cliets, if they really need the list of children it will still
> be ok. the point of that note was that for leader election only one process
> will emerge, so having a bunch of other processing making unneeded requests
> is wasteful and can be avoided.
>
> ben
>
>
> On 07/12/2010 01:47 PM, Ted Dunning wrote:
>
>> Having 16 clients all wake up and ping ZK is an extremely light load.  The
>> warning on the recipes page had more to do with the situation where
>> thousands of nodes wake up at the same time.
>>
>> On Mon, Jul 12, 2010 at 1:30 PM, Srikanth Bondalapati:<
>> sbondalap...@tagged.com>  wrote:
>>
>>
>>
>>> Hi,
>>>
>>> I am using ZooKeeper service for leader election and group management. I
>>> have read in the site (
>>>
>>>
>>> http://hadoop.apache.org/zookeeper/docs/r3.2.2/recipes.html#sc_leaderElection
>>> )
>>> under the "LeaderElection" section that, if all the clients try to access
>>> the getChildren() when trying to become a leader, it causes a bottleneck
>>> on
>>> the server. But, I wanted to execute getChildren() method on all the
>>> clients
>>> that have seen a change on the parent's ZNode. So, could you please tell
>>> what could be the maximum number of clients that can be used without any
>>> performance drop on the server, when all the clients try to execute
>>> getChildren() method? Currently, I intend to use 16 clients cluster, and
>>> the
>>> data on each of the ZNodes is very less (say<  500 bytes).
>>>
>>> Anxiously waiting for your reply,
>>> Thanks&  Regards,
>>> Srikanth.
>>>
>>>
>>>
>>
>

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