I also desperately need this, and row/column TTLs. Let me know if there's
anything I can do to help with the release of either in the near-term time
frame.
R
On Sat, Mar 13, 2010 at 2:21 AM, Vijay wrote:
> Badly need it for my work let me know if i can do something to speed it up
> :)
>
> Rega
We'll be submitting patches for vector clocks soon on jira, stay tuned.
-Chris
On Mar 12, 2010, at 11:21 PM, Vijay wrote:
> Badly need it for my work let me know if i can do something to speed it up :)
>
> Regards,
>
>
>
>
> On Wed, Nov 4, 2009 at 1:32 PM, Chris Goffinet wrote:
> Hey,
>
>
Badly need it for my work let me know if i can do something to speed it up
:)
Regards,
On Wed, Nov 4, 2009 at 1:32 PM, Chris Goffinet wrote:
> Hey,
>
> At Digg we've been thinking about counters in Cassandra. In a lot of our
> use cases we need this type of support from a distributed storage
On Sat, Mar 6, 2010 at 4:59 PM, simon.reavely wrote:
> Is there a place on the Cassandra wiki where the proposals/thinking on these
> issues has been captured in one place?
The wiki is a terrible place for proposals. Use the ML for those, and
use JIRA when you start to actually generate code.
h
B that can be used to build counters. Given the historical
> influences
> > from Amazon
> > s Dynamo to Cassandra I would think a similar approach might work well.
> >
> http://www.allthingsdistributed.com/2010/02/strong_consistency_simpledb.html
> >
> > BTW...
ml
>
> BTW...I would be VERY interested in such support.
> --
> View this message in context:
> http://n2.nabble.com/Incr-Decr-Counters-in-Cassandra-tp3948361p4686353.html
> Sent from the cassandra-user@incubator.apache.org mailing list archive at
> Nabble.com.
>
10/02/strong_consistency_simpledb.html
BTW...I would be VERY interested in such support.
--
View this message in context:
http://n2.nabble.com/Incr-Decr-Counters-in-Cassandra-tp3948361p4686353.html
Sent from the cassandra-user@incubator.apache.org mailing list archive at
Nabble.com.
counters in cassandra will be awesome!
On Wed, Nov 4, 2009 at 1:32 PM, Chris Goffinet wrote:
> Hey,
>
> At Digg we've been thinking about counters in Cassandra. In a lot of our
> use cases we need this type of support from a distributed storage system.
> Anyone else out there who has such needs
)
-Original Message-
Date: Wednesday, November 04, 2009 5:32:16 pm
To: cassandra-user@incubator.apache.org
From: "Jonathan Mischo"
Subject: Re: Incr/Decr Counters in Cassandra
incr/decr actually fit with EC, since they're just add n or sub n ops
that can be replayed in a
incr/decr actually fit with EC, since they're just add n or sub n ops
that can be replayed in any order...it's just less costly to do it as
a get and incr or get and decr than as separate operations...the only
difference between a get on the value followed by an incr is the
overhead of the
Sure, that's why you say in the docs, "This isn't a sequence, it's a
counter." Just because in RDBMS land sequences are safe to use that
way doesn't meaning in NRDBMS land counters have to work the same
way. Eventually consistent models don't work very well for sequences,
but counters sho
Christian Vest Hansen wrote:
Numeric addition and subtraction are commutable operations: they can
be performed in any order without conflict, which I think is a key
performance promise.
Correct, but a common use case for incr/decr counting is issuing numeric
keys, which requires a global lock
n the API, you could make the resolution optional.
-Original Message-
From: "Chris Goffinet"
Sent: Wednesday, November 4, 2009 3:32pm
To: cassandra-user@incubator.apache.org
Cc: cassandra-...@incubator.apache.org
Subject: Incr/Decr Counters in Cassandra
Hey,
At Digg we've been th
incr/decr for counters maybe doesn't fit with EC (as you might need a
global lock for some use cases ), but plus/minus are slightly different
as they're commutative and don't require a total ordering.
Bill
Michael Greene wrote:
This has come up before at http://markmail.org/thread/w3mrh4h64xp
ould have to exist on the server side.
>
> Personally, I think (1) is the better approach, and for backwards
> compatibility in the API, you could make the resolution optional.
>
>
> -Original Message-
> From: "Chris Goffinet"
> Sent: Wednesday, November 4, 2009 3:32pm
Sent: Wednesday, November 4, 2009 3:32pm
To: cassandra-user@incubator.apache.org
Cc: cassandra-...@incubator.apache.org
Subject: Incr/Decr Counters in Cassandra
Hey,
At Digg we've been thinking about counters in Cassandra. In a lot of
our use cases we need this type of support from a distributed s
This has come up before at http://markmail.org/thread/w3mrh4h64xpf3vuj
and http://markmail.org/message/vnmsuddlrhaziq7g
I am in favor of adding eventually-consistent atomic operations such
as this, but I'm not sure how one would implement it. Some sort of
UUID + bloomfilter for the individual atom
Chris Goffinet wrote:
Hey,
At Digg we've been thinking about counters in Cassandra. In a lot of our
use cases we need this type of support from a distributed storage
system. Anyone else out there who has such needs as well? Zookeeper
actually has such support and we might use that if we can
Hey Chris,
I've been thinking along the same lines. I've got multiple
applications for counters where they'd be a lot faster as a single
operation than as a fetch and update chain. If you implement it, the
key is to have the ability to not just outright increment or
decrement, but also
We would appreciate the use of counters and I think is something that
would anyone could appreciate, adding atomic operations like this
doesn't seem out of scope.
-Dan
On Wed, Nov 4, 2009 at 1:32 PM, Chris Goffinet wrote:
> Hey,
>
> At Digg we've been thinking about counters in Cassandra. In a l
SimpleGeo would be interested.
--Joe
On Nov 4, 2009, at 2:32 PM, Chris Goffinet wrote:
Hey,
At Digg we've been thinking about counters in Cassandra. In a lot of
our use cases we need this type of support from a distributed
storage system. Anyone else out there who has such needs as well?
Hey,
At Digg we've been thinking about counters in Cassandra. In a lot of
our use cases we need this type of support from a distributed storage
system. Anyone else out there who has such needs as well? Zookeeper
actually has such support and we might use that if we can't get the
support i
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