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From aaron morton <aa...@thelastpickle.com>
Subject Re: EC2 Best Practices
Date Mon, 30 Apr 2012 03:22:08 GMT
> node that fail had the token id of 0 (this is the seed node - right?).
Seed nodes are listed in the seeds: section of the cassandra.yaml file. 

Using 0 as a token for a node is normal.

Cheers

-----------------
Aaron Morton
Freelance Developer
@aaronmorton
http://www.thelastpickle.com

On 26/04/2012, at 10:18 AM, Dave Brosius wrote:

> 0 is a perfectly valid id.
> 
> node - 1 is modulo the maximum token value. that token range is 0  -  2**127
> 
> so node - 1 in this case is 2**127
> 
> 
> ----- Original Message -----
> From: "Deno Vichas" <deno@syncopated.net> 
> Sent: Wed, April 25, 2012 18:11
> Subject: Re: EC2 Best Practices
> 
> 
>  
> has anybody written up anything related to recovery for fails in EC2?
> 
> this morning i woke up to find 1 (of 4) nodes marked as unreachable.  i used the datastax
(1.0.7) ami to set u p my clu ster and the node that fail had the token id of 0 (this is the
seed node - right?).  the docs says to replace a failed node to set the token to failed node
- 1, which i don't think would work.  luckily rebooting the machine  
> 
> but i'm left with the question of what should i do if node with the token ID of 0 fails
and should i even have a node with that ID.
> 
> 
> thanks,
> deno
> 
> 
> 
> On 2/23/2012 11:21 AM, aaron morton wrote:
>> General EC2 setup.
>>  
>> http://www.datastax.com/docs/1.0/install/install_ami
>> http://wiki.apache.o rg/cassa ndra/CloudConfig
>>  
>> Cassandra with a VPN on EC2. From memory it talks about using the VPN within EC2.

>> http://blog.vcider.com/2011/09/running-cassandra-on-a-virtual-network-in-ec2/
>>  
>> Clients need a single port (9160) to talk to the cluster.
>>  
>> Hope that helps. 
>> 
>>  
>> 
>> -----------------
>> Aaron Morton
>> Freelance Developer
>> @aaronmorton
>> http://www.thelastpickle.com
>> 
>> On 24/02/2012, at 3:46 AM, Philip Shon wrote:
>> 
>>> Are there any good resources for best practices when running Cassandra within
EC2? I'm particularly interested in the security issues, when the servers communicating w/
Cassandra are outside of EC2.
>>>  
>>> Thanks,
>>>  
>>> -Phil
> 
>  


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