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From S Ahmed <sahmed1...@gmail.com>
Subject Re: advice, is cassandra suitable for a multi-tanency vBulletin type application?
Date Tue, 13 Jul 2010 14:16:51 GMT
The only issue I see (please correct me if I am wrong) is that you loose, is
that you have single points of failure in the system now i.e. redis etc.

On Tue, Jul 13, 2010 at 3:33 AM, Sandeep Kalidindi at PaGaLGuY.com <
sandeep.kalidindi@pagalguy.com> wrote:

> @michael - benjamin answered your question.
>
> Thing is if you use mysql just for indices you are not at all using the
> benefits of the whole relational database engine(which is fine) but then are
> inheriting all its disadvantages.
>
> You can use mysql for storing indices and then write your own sharding
> layer on top and then make sure network partitions are taken care of and
> then.. oh wait you are already starting to create a poor mans cassandra on
> top of Mysql. Why not just use cassandra ???
>
> One valid argument can be mysql is solid in stability where as cassandra
> still yet to prove it is rock solid. But then 0.7 release looks awesome.
> There are some really wonderful people developing cassandra and then here to
> answer most of your questions and then if you still need there is
> Riptano(and jonathan ellis is one hell of a person to discuss your infra
> issues).
>
> Cheers,
> Deepu.
>
>
> On Tue, Jul 13, 2010 at 12:17 PM, Benjamin Black <b@b3k.us> wrote:
>
>> On Mon, Jul 12, 2010 at 11:35 PM, Michael Dürgner <michael@duergner.de>
>> wrote:
>> > The thing about slow on joins is true (we experience that ourselves) but
>> still I wonder myself, why you use cassandra for the indices. Can't you just
>> store them in MySQL although?
>> >
>>
>> ...and then shard and shard and shard to deal with hundreds of
>> millions or billions of rows?  That's usually the trade-off.  Both can
>> be made to work, but neither is free.
>>
>>
>> b
>>
>
>

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