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From Boris Yen <yulin...@gmail.com>
Subject Re: Fast lookups for userId to username and vice versa
Date Wed, 16 Nov 2011 14:37:26 GMT
I think secondary index could do the trick.

However, if you need to provide the pagination function, I will go for
Konstantin's
solution.


On Wed, Nov 16, 2011 at 10:27 PM, Konstantin Naryshkin <konstantinn@a-bb.net
> wrote:

> Or just have two column families to do it: A CF idToName that has the
> userIds as keys and the userName as the only column and a CF nameToId
> that has the userNames as keys and the userId as the only column
>
> On Mon, Nov 14, 2011 at 03:50, chovatia jaydeep
> <chovatia_jaydeep@yahoo.co.in> wrote:
> > Check if Cassandra secondary index meets your requirement.
> >
> > Thank you,
> > Jaydeep
> > ________________________________
> > From: Aklin_81 <asdkl93@gmail.com>
> > To: user <user@cassandra.apache.org>
> > Sent: Sunday, 13 November 2011 12:32 PM
> > Subject: Fast lookups for userId to username and vice versa
> >
> > I need to create mapping from <userId>(s) to <username>(s) which need
to
> > provide for fast lookups service ?
> > Also I need to provide a mapping from <username> to <userId> inorder
to
> > implement search functionality in my application.
> >
> > What could be a good strategy to implement this ? (I would welcome
> > suggestions to use any new technologies if they are really worth for my
> > case.)
> >
> >
>

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