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From "R. Verlangen" <ro...@us2.nl>
Subject Re: Replication factor per column family
Date Fri, 17 Feb 2012 14:10:37 GMT
Ok, that's clear, thank you for your time!

2012/2/16 aaron morton <aaron@thelastpickle.com>

> yes.
>
> -----------------
> Aaron Morton
> Freelance Developer
> @aaronmorton
> http://www.thelastpickle.com
>
> On 16/02/2012, at 10:15 PM, R. Verlangen wrote:
>
> Hmm ok. This means if I want to have a CF with RF = 3 and another CF with
> RF = 1 (e.g. some debug logging) I will have to create 2 keyspaces?
>
> 2012/2/16 aaron morton <aaron@thelastpickle.com>
>
>> Multiple CF mutations for a row are treated atomically in the commit log,
>> and they are sent together to the replicas. Replication occurs at the row
>> level, not the row+cf level.
>>
>> If each CF had it's own RF, odd things may happen. Like sending a batch
>> mutation for one row and two CF's that fails because there is not enough
>> nodes for one of the CF's.
>>
>> Would be other reasons as well. In short it's baked in.
>>
>> Cheers
>>
>>   -----------------
>> Aaron Morton
>> Freelance Developer
>> @aaronmorton
>> http://www.thelastpickle.com
>>
>> On 16/02/2012, at 9:54 PM, R. Verlangen wrote:
>>
>> Hi there,
>>
>> As the subject states: "Is it possible to set a replication factor per
>> column family?"
>>
>> Could not find anything of recent releases. I'm running Cassandra 1.0.7
>> and I think it should be possible on a per CF basis instead of the whole
>> keyspace.
>>
>> With kind regards,
>> Robin
>>
>>
>>
>
>

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