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From Vladimir Prudnikov <v.prudni...@gmail.com>
Subject Re: MailBox Impl
Date Fri, 19 Jul 2013 19:15:03 GMT
Great link, thanks.


On Fri, Jul 19, 2013 at 9:40 AM, CharSyam <charsyam@gmail.com> wrote:

> How about this:
> http://www.elasticinbox.com/
>
> 2013년 7월 19일 금요일에 Vegard  Berget<post@fantasista.no>님이 작성:
>
> > Hi,
> > 1)  Counters will probably work for this.  Our experience with counters
> is that it is very accurate.  But read up on how repair/inconsistencies etc
> is handled.
> > 2)  You can not, as far as i know at least, have ttl on part of a
> counter.  What you can do, depending on how accurate it needs to be, is to
> have counters per hour (or something like that) and add them together for
> the last 10 days (which of course can be done async and stored):
> >   MailboxId as rowkey, Year,Month,Day,Hour as columnkey.  I don't know
> if this solves anything for you, but maybe you can use part of that idea
> for something?
> > .vegard,
> >
> > ----- Original Message -----
> > From:
> > user@cassandra.apache.org
> > To:
> > "user@cassandra.apache.org" <user@cassandra.apache.org>
> > Cc:
> > Sent:
> > Thu, 18 Jul 2013 21:30:08 +0000
> > Subject:
> > MailBox Impl
> >
> >
> > Hi  - We are planning on using Cassandra for an IMAP based
> implementation. There are some questions that we are stuck with –
> >
> >
> >
> > 1)      Each user will have a pre-defined mailbox size (say 10 MB). We
> need to maintain a field to check if the mail-box size exceeds the
> predefined size. Will using the counter family be appropriate ?
> >
> > 2)      Also, we need to have retention for only 10 days. After 10 days,
> the previous days data will be removed. We plan to have TTL defined per
> message. But if we do that, how does the counter in question 1 get updated
> with the space cleaned due to deletion ?
> >
> > 3)      Do we NOT have TTL and manage the deletions within the
> application itself ?
> >
> >
> >
> > Thanks,
> >
> > Kanwar
> >
> >
>



-- 
Vladimir Prudnikov

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