incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "R. Verlangen" <ro...@us2.nl>
Subject Re: counter column family
Date Tue, 27 Mar 2012 13:25:14 GMT
You should use a connection pool without retries to prevent a "single"
increment of +1 have a result of e.g. +3.

2012/3/27 Rishabh Agrawal <rishabh.agrawal@impetus.co.in>

>  You can even define how much increment you want. But let me just warn
> you, as far my knowledge, it has consistency issues.
>
>
>
> *From:* puneet loya [mailto:puneetloya@gmail.com]
> *Sent:* Tuesday, March 27, 2012 5:59 PM
>
> *To:* user@cassandra.apache.org
> *Subject:* Re: counter column family
>
>
>
> thanxx a ton :) :)
>
>
>
> the counter column family works synonymous as 'auto increment' in other
> databases rite?
>
>
>
> I mean we have a column of  type integer which increments with every
> insert.
>
>
>
> Am i goin the rite way??
>
>
>
> please reply :)
>
> On Tue, Mar 27, 2012 at 5:50 PM, R. Verlangen <robin@us2.nl> wrote:
>
> *create column family MyCounterColumnFamily with
> default_validation_class=CounterColumnType and
> key_validation_class=UTF8Type and comparator=UTF8Type;*
>
>
>
> There you go! Keys must be utf8, as well as the column names. Of course
> you can change those validators.
>
>
>
> Cheers!
>
>
>
> 2012/3/27 puneet loya <puneetloya@gmail.com>
>
> Can u give an example of create column family with counter column in it.
>
>
>
>
>
> Please reply
>
>
>
>
>
> Regards,
>
>
>
> Puneet Loya
>
>
>
>
>
> --
> With kind regards,
>
>
>
> Robin Verlangen
>
> www.robinverlangen.nl
>
>
>
>
>
> ------------------------------
>
> Impetus to sponsor and exhibit at Structure Data 2012, NY; Mar 21-22. Know
> more about our Big Data quick-start program at the event.
>
> New Impetus webcast ‘Cloud-enabled Performance Testing vis-à-vis
> On-premise’ available at http://bit.ly/z6zT4L.
>
>
> NOTE: This message may contain information that is confidential,
> proprietary, privileged or otherwise protected by law. The message is
> intended solely for the named addressee. If received in error, please
> destroy and notify the sender. Any use of this email is prohibited when
> received in error. Impetus does not represent, warrant and/or guarantee,
> that the integrity of this communication has been maintained nor that the
> communication is free of errors, virus, interception or interference.
>



-- 
With kind regards,

Robin Verlangen
www.robinverlangen.nl

Mime
View raw message