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From pankaj soni <pankajsoni0...@gmail.com>
Subject Re: IP address resolution in MultiDC setup
Date Tue, 26 Apr 2011 10:59:15 GMT
one last doubt is pending after reading your document:

1. when deploying cassandra across multiple dcs using your patch, is it
possible to have internal network of nodes in each data center talking over
private ip? then I assume the node with public ip will act as coordinator.
But if it goes down the link between data centers will be down?

could you clear this one.

thnks
pankaj

On Mon, Apr 25, 2011 at 7:00 PM, pankaj soni <pankajsoni0126@gmail.com>wrote:

> scrap the last mail, just finished reading Amazon ec2 resource policy.
>
> @milind when deploying cassandra across multiple dcs using your patch, is
> it possible to have internal network of nodes in each data center talking
> over private ip?
> then I assume the node with public ip will act as co-ordinator. If it goes
> down the link between data centers will be down?
>
> Thanks
> pankaj
>
>
> On Mon, Apr 25, 2011 at 6:09 PM, pankaj soni <pankajsoni0126@gmail.com>wrote:
>
>> Just read your paper on this. Must say helped a great deal.
>>
>> 1 more query does amazon by default award both external and internal IP
>> address for each node? or we have to explicitly buy the external IP's?
>>
>> I am looking into overlay n/w's.
>>
>>
>> On Mon, Apr 25, 2011 at 5:20 PM, Milind Parikh <milindparikh@gmail.com>wrote:
>>
>>> I stand corrected....I show how cassandra can be deployed in multiple dcs
>>> through a simple patch; using public ips. In your scenario with an overlay
>>> n/w, you will not require this patch.
>>>
>>> /***********************
>>> sent from my android...please pardon occasional typos as I respond @ the
>>> speed of thought
>>> ************************/
>>>
>>> On Apr 25, 2011 7:43 AM, "Milind Parikh" <milindparikh@gmail.com> wrote:
>>>
>>> I have authored exactly this paper....please search this ml. Please be
>>> aware about ec2's internal network as you design your deployment. Ec2 also
>>> does not support multicast; which is a pain,but not unsurmountable.
>>>
>>>
>>>
>>> /***********************
>>> sent from my android...please pardon occasional typos as I respond @ the
>>> ...
>>>
>>>
>>> >
>>> > On Apr 25, 2011 7:31 AM, "pankaj soni" <pankajsoni0126@gmail.com>
>>> wrote:
>>> >
>>> > We are expecting t...
>>>
>>> pankaj
>>>
>>>
>>> >
>>> >
>>> >
>>> > On Mon, Apr 25, 2011 at 4:55 PM, Milind Parikh <milindparikh@gmail.com>
>>> wrote:
>>> > >
>>> > It will be thro...
>>>
>>>
>>
>

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