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From: Check Peck <comptechgeeky@gmail.com>
Date: Sun, 6 Apr 2014 21:21:17 -0700
Message-ID: 
 <CAF+A=7rajUHLWSfLff12xVMp3zY8DgEj8cdLjLrSoGdDwuk_5w@mail.gmail.com>
Subject: Re: Load on Zookeeper cluster?
To: user <user@zookeeper.apache.org>
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I tried following the steps mentioned on this github link -
https://github.com/phunt/zk-smoketest for zk-latencies.py.

I have 3 node ZK cluster-  machineA, machineB, machineC

Now I copied the Python program zk-latencies.py and zkclient.py in another
machineD in which no zookeeper is running. It's a plain ubuntu box.

Now when I ran the program like this -

david@machineD:~/zooksmoketest$ ./zk-latencies.py --servers
"machineA:2181,machineB::2181,machineC:2181" --znode_count=3D100
--znode_size=3D100 --synchronous
Traceback (most recent call last):
  File "./zk-latencies.py", line 22, in <module>
    import zkclient
  File "/home/david/zooksmoketest/zkclient.py", line 17, in <module>
    import zookeeper, time, threading

*ImportError: No module named zookeeper*

I got an error as shown above. Any thoughts what wrong I am doing here? I
don't have that much experience with Python. Any suggestions will be of
great help.

@Raul: Any thoughts?


On Sun, Apr 6, 2014 at 6:46 PM, Check Peck <comptechgeeky@gmail.com> wrote:

> Thanks guys.. I am going to do load test in couple of days using the
> exiting Python framework. And I will share the results once I am done.
>
>
> On Tue, Mar 25, 2014 at 11:19 PM, Rakesh R <rakeshr@huawei.com> wrote:
>
>>
>> If I understood the case correctly,
>> Test :- 3 node ZK cluster, 600 sessions each will do one read
>> operation(getChildren call) every one minute.
>>
>> I'm assuming the calls are equally distributed in time frame and it woul=
d
>> be like : 600ops/60secs, average 10 ops/sec will go to 3 node cluster
>> I also feel it should be, also it would be great if you publish the
>> results after your tests.
>>
>>
>> -Rakesh
>>
>> -----Original Message-----
>> From: Check Peck [mailto:comptechgeeky@gmail.com]
>> Sent: 26 March 2014 11:19
>> To: user
>> Subject: Re: Load on Zookeeper cluster?
>>
>> Thanks that is also quite useful.
>>
>> For my above use case, I just need to get the children of a particular
>> znode.. And that's what will be happening from all the 600 application
>> machines..
>>
>> From the wiki you provided, it looks it should be fine right?
>>
>>
>> On Tue, Mar 25, 2014 at 10:13 PM, Rakesh R <rakeshr@huawei.com> wrote:
>>
>> >
>> > Please go through the below one, hope it will be helpful to you. Also,
>> > I would recommend to have a look at the basic zk configurations too.
>> > All the
>> > best:)
>> >
>> >
>> > https://cwiki.apache.org/confluence/display/ZOOKEEPER/ServiceLatencyOv
>> > erview
>> >
>> >
>> > What client operations(for ex: simply creating many znodes, deleting,
>> > setwatches et.) you are planning to perform.
>> > Actually I'd like to know what each zkclient will be doing.
>> >
>> > -Rakesh
>> >
>> > -----Original Message-----
>> > From: Check Peck [mailto:comptechgeeky@gmail.com]
>> > Sent: 26 March 2014 09:40
>> > To: user
>> > Subject: Re: Load on Zookeeper cluster?
>> >
>> > On Tue, Mar 25, 2014 at 9:00 PM, Ra=FAl Guti=E9rrez Segal=E9s <
>> > rgs@itevenworks.net
>> > > wrote:
>> >
>> > > 1 ZK se
>> >
>> >
>> >
>> > Yes one ZK session per application. Zookeeper version I am running
>> > currently is 3.4.5 in production.
>> >
>>
>
>

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