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Date: Tue, 8 Apr 2014 20:54:52 -0700
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Subject: Re: Load on Zookeeper cluster?
From: Michi Mutsuzaki <michi@cs.stanford.edu>
To: Check Peck <comptechgeeky@gmail.com>
Cc: user <user@zookeeper.apache.org>
Content-Type: text/plain; charset=ISO-8859-1

Ok maybe you should try exactly that instead of using zk-latency.py.
Create 600 sessions and do a get once every minute. ZooKeeper should
be able to handle that.

On Tue, Apr 8, 2014 at 7:05 PM, Check Peck <comptechgeeky@gmail.com> wrote:
> Actual scenario will be -
>
>
> Test :- 3 node ZK cluster, 600 sessions each will do one read
> operation(getChildren call) every one minute.
>
> At what configuration I should try it out.
>
>
> On Tue, Apr 8, 2014 at 6:25 PM, Michi Mutsuzaki <michi@cs.stanford.edu>
> wrote:
>>
>> > So my question is what does this line mean at the end? Does it say, it
>> > can
>> > do a get request call at a rate of 2557 requests per second?
>> >
>> >      get         100           znodes  in     39 ms (0.390978 ms/op
>> > 2557.689587/sec)
>>
>> Yes.
>>
>> > Also I was interested to see how much load a 3 node ZK cluster can
>> > handle.
>> > In my case, most of the call will be "get" (get the data from only one
>> > znode) on the ZK cluster So with the above test I should be able to get
>> > some
>> > idea right?
>>
>> How many ZK clients do you expect to have? I would run the same number
>> of zk-latency.py instances with higher number of operations to get a
>> more accurate picture. The performance also depends on whether you use
>> asynchronous reads or synchronous reads.
>
>