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From CharSyam <chars...@gmail.com>
Subject Re: MailBox Impl
Date Fri, 19 Jul 2013 07:40:09 GMT
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
>
>

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