Hi Flavio,

Thanks for the quick response — and apologies for not including these details 
up front!

- C client binding
- 99.99% MacOS X Clients (10.9.2), with a couple of Linux Clients (Ubuntu 14.04)
- All ZK nodes are Linux (Ubuntu 14.404)
- ZooKeeper 3.4.6

No Windows involved here….

—James

On 4 Jul 2014, at 13:57, Flavio Junqueira <[email protected]> wrote:

> Hi James,
> 
> Are you using the C or the Java client binding? What's the OS? I'm asking 
> because there is an issue with the randomization of the connect string on 
> Windows we found, but I haven't created a jira for it yet.
> 
> -Flavio 
> 
> 
> On Friday, July 4, 2014 10:41 AM, James Mulcahy <[email protected]> 
> wrote:
> 
> 
>> 
>> 
>> 
>> Hello,
>> 
>> I run a 5 node ZooKeeper ensemble, with ~900 clients connected at a given 
>> time.  I’m noticing that at any one point in time, all the clients are 
>> generally connected to the same ZooKeeper node.
>> 
>> Looking back over the graphs I have which track this, there has only been 
>> one brief period where one node didn’t have >90% of the clients; and during 
>> that period, two nodes shared roughly 50% of the clients each.
>> 
>> Is this expected behaviour?  Is there anything I can do to tune this, to 
>> encourage the clients to be more balanced?
>> 
>> My expectation was that the clients would self-balance — I thought I’d read 
>> that somewhere in the documentation, but I can’t find a reference for that 
>> now.
>> 
>> Thanks in advance,
>> 
>> —James
>> 

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