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From Patrick Hunt <ph...@apache.org>
Subject Re: Strange responses from server
Date Fri, 26 Aug 2011 18:55:18 GMT
That's how tools like my zktop currently work. https://github.com/phunt/zktop

Andrei did some work in 3.4.0 (unreleased as of yet) to support more
(easier) machine readable output.

Patrick

On Fri, Aug 26, 2011 at 11:46 AM, Jordan Zimmerman
<jzimmerman@netflix.com> wrote:
> What's missing, IMO, is a uniform response that says the system is
> nominal. I can query "stat" but I now have to do an ugly compare against
> the response - something like: response.startsWith("Zookeeper version").
> Or, am I missing something?
>
> -JZ
>
> On 8/26/11 11:42 AM, "Ted Dunning" <ted.dunning@gmail.com> wrote:
>
>>Not really.
>>
>>Diagnosing the network is an important step.  Diagnosing quorum formation
>>is
>>the next step.
>>
>>On Fri, Aug 26, 2011 at 11:31 AM, Jordan Zimmerman
>><jzimmerman@netflix.com>wrote:
>>
>>> Thanks - that makes "ruok" essentially useless. Grrr...
>>>
>>> On 8/26/11 11:10 AM, "Patrick Hunt" <phunt@apache.org> wrote:
>>>
>>> >ruok checks if the server is listening on the port, that it's up and
>>> >functional, not that it's joined a quorum
>>> >
>>> >stat provides details on the server wrt the quorum, not serving
>>> >requests means that it is not currently a member of the quorum.
>>> >
>>> >You'd need to check the logs to see why it's not participating.
>>> >
>>> >Patrick
>>> >
>>> >On Fri, Aug 26, 2011 at 11:06 AM, Jordan Zimmerman
>>> ><jzimmerman@netflix.com> wrote:
>>> >> I have a three node ensemble. Each node responds to "ruok" with
>>>"imok".
>>> >> Yet, each one response to "stat" with "This ZooKeeper instance is not
>>> >> currently serving requests". What gives? Which one should I trust?
>>>How
>>> >> might it get in this state and what's the correct way to fix it?
>>> >>
>>> >> -Jordan
>>> >>
>>> >>
>>> >
>>>
>>>
>
>

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