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Subject: Re: EC2 Best Practices
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From: aaron morton <aaron@thelastpickle.com>
In-Reply-To: <1335392286.v2.mailanyonewebmail-596227@fuseweb2d>
Date: Mon, 30 Apr 2012 15:22:08 +1200
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References: <1335392286.v2.mailanyonewebmail-596227@fuseweb2d>
To: user@cassandra.apache.org,
 dbrosius@mebigfatguy.com

> 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.=20=


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.
>=20
> node - 1 is modulo the maximum token value. that token range is 0  -  =
2**127
>=20
> so node - 1 in this case is 2**127
>=20
>=20
> ----- Original Message -----
> From: "Deno Vichas" <deno@syncopated.net>=20
> Sent: Wed, April 25, 2012 18:11
> Subject: Re: EC2 Best Practices
>=20
>=20
> =20
> has anybody written up anything related to recovery for fails in EC2?
>=20
> 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 =20
>=20
> 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.
>=20
>=20
> thanks,
> deno
>=20
>=20
>=20
> On 2/23/2012 11:21 AM, aaron morton wrote:
>> General EC2 setup.
>> =20
>> http://www.datastax.com/docs/1.0/install/install_ami
>> http://wiki.apache.o rg/cassa ndra/CloudConfig
>> =20
>> Cassandra with a VPN on EC2. =46rom memory it talks about using the =
VPN within EC2.=20
>> =
http://blog.vcider.com/2011/09/running-cassandra-on-a-virtual-network-in-e=
c2/
>> =20
>> Clients need a single port (9160) to talk to the cluster.
>> =20
>> Hope that helps.=20
>>=20
>> =20
>>=20
>> -----------------
>> Aaron Morton
>> Freelance Developer
>> @aaronmorton
>> http://www.thelastpickle.com
>>=20
>> On 24/02/2012, at 3:46 AM, Philip Shon wrote:
>>=20
>>> 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.
>>> =20
>>> Thanks,
>>> =20
>>> -Phil
>=20
> =20