A related question.  If I have run a Zookeeper service with many ephemeral
znodes on five servers, then I want to replace one of the servers by a new
one, and the new server has a new IP. How can I do the job without any loss
of data ?

Thanks


On Mon, Jun 29, 2009 at 9:24 AM, Qian Ye <yeqian....@gmail.com> wrote:

> Thanks for the explanation, it sounds great.
>
> It seems that I should study more on Zookeeper :-)
>
> regards
>
>
> On Mon, Jun 29, 2009 at 2:15 AM, Ted Dunning <ted.dunn...@gmail.com>wrote:
>
>> I don't think you should be very nervous at all.
>>
>> There are two questions:
>>
>> 1) can 3.1.1 go to 3.2 with no down time.  This is very likely, but a
>> wiser
>> head than mine should have final say
>>
>> 2) can 3.1.1 go to 3.2 with < 1 minute of downtime.  The is for sure.
>>
>> Neither option involves data loss.
>>
>> ZK is actually really really good for HA operations.
>>
>> On Sun, Jun 28, 2009 at 4:55 AM, Qian Ye <yeqian....@gmail.com> wrote:
>>
>> > your answer makes me nervous about upgrade Zookeeper
>> > server
>> >
>>
>
>
>
> --
> With Regards!
>
> Ye, Qian
> Made in Zhejiang University
>
>


-- 
With Regards!

Ye, Qian
Made in Zhejiang University

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