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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Multi data-center configuration
Date Thu, 29 Oct 2009 17:08:32 GMT
Try using just a single seed then.

On Thu, Oct 29, 2009 at 10:09 AM, Musto Domenico <Domenico.Musto@yoox.com>wrote:

>  Hi,
>
>
>
> we already tried putting the same seeds list on each DC but it did not work
>
>
>
> Thanks
>
>
>
> *From:* Jonathan Ellis [mailto:jbellis@gmail.com]
> *Sent:* giovedì 29 ottobre 2009 17.06
>
> *To:* cassandra-user@incubator.apache.org
> *Subject:* Re: Multi data-center configuration
>
>
>
> the seeds list needs to be the same for both DCs -- in fact your whole
> configuration file should be the same.
>
> put one node from each DC in the seeds list.
>
> On Thu, Oct 29, 2009 at 9:59 AM, Musto Domenico <Domenico.Musto@yoox.com>
> wrote:
>
> Hi,
>
>
>
> thank you for your reply.
>
>
>
> We tried your suggestion but it did not work.
>
>
>
> We are working on version 4.1 and we have already verified that there are
> no network problems between the datacenters. Also we verified that the nodes
> inside the same data center are joining each other without any problem.
>
>
>
> In attach our configuration files.
>
>
>
> I hope you can help us
>
>
>
> Thank you
>
>
>
> *From:* Jonathan Ellis [mailto:jbellis@gmail.com]
> *Sent:* giovedì 29 ottobre 2009 15.32
> *To:* cassandra-user@incubator.apache.org
> *Subject:* Re: Multi data-center configuration
>
>
>
> Try with one seed from each DC.
>
> On Thu, Oct 29, 2009 at 8:19 AM, Musto Domenico <Domenico.Musto@yoox.com>
> wrote:
>
> Hi there,
>
>
>
> we are experiencing a problem with a multidatacenter configuration.
>
> We have the following scenario :
>
>
>
> We have two data-centers with 3 nodes each.
>
>
>
> We have configured seeds like this on each datacenter.
>
>
>
> <Seeds>
>
>       <Seed>ip1_datacenter_A</Seed>
>
>       <Seed>ip2_datacenter_A </Seed>
>
>       <Seed>ip3_datacenter_A </Seed>
>
>       <Seed>ip1_datacenter_B </Seed>
>
>   </Seeds>
>
>
>
> We tried both RackAwareStrategy and RackUnAwareStrategy but it seems that
> the two data-centers are not communicating at all between them.
>
>
>
> Also, with  version 4.1 and RackAwareStrategy we are getting an error : UnsupportedOperationException:
Rack-aware bootstrapping not supported
>
>
>
> With trunk version we are not getting the error but there is no communication at all
between datacenters.
>
>
>
>
>
>
>
>
>
>
>
>
> Can anyone help?
>
>
>
> Thanks
>
>
>
>
>
> Domenico Musto
>
> Software Factory Developer
>
> YOOX Group
>
> Via Nannetti 1, 40069 Zola Predosa, Bologna, Italia
>
> T  +39 051 6184240
>
> F  +39 051 6184215
>
> domenico.musto@yoox.com
>
>
>
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>
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