Dynamic server addition/deletion

["raghul@yahoo.com" <ra...@yahoo.com>]

Our product would require support for dynamic addition and deletion of ZK servers to the cluster. We would like to come up with a design, propose the design to the ZK developers and then implement the feature once the design is signed off by the ZK developers. Before we go down that path, I would like to know if people already have any ideas on this that they could share with us. Also, we don't want to duplicate the effort, so we would appreciate if you let us know anyone is already working on a design proposal for this feature.

Thanks
Raghu


      

Re: Dynamic server addition/deletion

[Mahadev Konar <ma...@yahoo-inc.com>]

Hi Raghu and Ted,
 Theire is already an open jira on this --

http://issues.apache.org/jira/browse/ZOOKEEPER-107

You can go through the suggestions on it and can continue the discussion on
the jira. Please  feel free to add your ideas to the jira.

Also, I don't think anyone is working on it (to answer raghu's question).

mahadev


On 5/1/09 12:30 PM, "Ted Dunning" <te...@gmail.com> wrote:

> This is relatively easy to do now, although somewhat inelegant.
> 
> You can make configuration changes and then do a rolling restart of the
> systems.
> 
> A more elegant solution in which you add additional servers without a
> restart should be relatively easy to build into the code if you can make it
> look like the new machine is simply a reboot of a previously known machine.
> 
> Folk like Ben and Patrick and Mahadev should have better informed ideas
> about that.
> 
> 
> On Fri, May 1, 2009 at 12:25 PM, raghul@yahoo.com <ra...@yahoo.com> wrote:
> 
>> 
>> Our product would require support for dynamic addition and deletion of ZK
>> servers to the cluster. We would like to come up with a design, propose the
>> design to the ZK developers and then implement the feature once the design
>> is signed off by the ZK developers. Before we go down that path, I would
>> like to know if people already have any ideas on this that they could share
>> with us. Also, we don't want to duplicate the effort, so we would appreciate
>> if you let us know anyone is already working on a design proposal for this
>> feature.
>> 
>> Thanks
>> Raghu
>> 
>> 
>> 
>> 
> 

Re: Dynamic server addition/deletion

[Ted Dunning <te...@gmail.com>]

This is relatively easy to do now, although somewhat inelegant.

You can make configuration changes and then do a rolling restart of the
systems.

A more elegant solution in which you add additional servers without a
restart should be relatively easy to build into the code if you can make it
look like the new machine is simply a reboot of a previously known machine.

Folk like Ben and Patrick and Mahadev should have better informed ideas
about that.


On Fri, May 1, 2009 at 12:25 PM, raghul@yahoo.com <ra...@yahoo.com> wrote:

>
> Our product would require support for dynamic addition and deletion of ZK
> servers to the cluster. We would like to come up with a design, propose the
> design to the ZK developers and then implement the feature once the design
> is signed off by the ZK developers. Before we go down that path, I would
> like to know if people already have any ideas on this that they could share
> with us. Also, we don't want to duplicate the effort, so we would appreciate
> if you let us know anyone is already working on a design proposal for this
> feature.
>
> Thanks
> Raghu
>
>
>
>


-- 
Ted Dunning, CTO
DeepDyve

111 West Evelyn Ave. Ste. 202
Sunnyvale, CA 94086
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