incubator-cassandra-dev mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Jeff Hodges <jhod...@twitter.com>
Subject Re: plugins/triggers/coprocessors
Date Fri, 11 Feb 2011 19:11:31 GMT
As the dude that worked on the 1016 prototype, I agree with this.

On Fri, Feb 11, 2011 at 10:53 AM, Stu Hood <stuhood@gmail.com> wrote:
> Honestly, I think we should just mark 1016 a dupe and move forward with
> 1311: we won't be hurting anyone's feelings, and the implementation from
> 1016 is: 1. much, much less complete, 2. abandoned.
>
>
> On Fri, Feb 11, 2011 at 9:23 AM, Jeremy Hanna <jeremy.hanna1234@gmail.com>wrote:
>
>> Thanks Maxim - I'll just go ahead and BCC you and Hentschel and move the
>> discussion to the dev list.
>>
>> Based on the comments on 1311 - did you have anything else to add to that -
>> could we unify around 1016 or 1311 and work on getting that to a general
>> state of acceptance?  Were there any that were able to do some work on
>> either these days?  Or are we not at that point?
>>
>> On Feb 11, 2011, at 10:36 AM, Maxim Grinev wrote:
>>
>> > Hi all,
>> >
>> > Jeremy, thanks for starting the discussion! We don't follow the dev list
>> closely so it was a good idea to email it directly.
>> >
>> > It really seems to be about the same. To unify the discussions, we
>> propose to list the features of each solution and compare them feature by
>> feature. Here is the feature list for triggers:
>> >       • Triggers are set on a column family. Triggers are executed for
>> each mutation to the column family and parametrized by the mutation.
>> >       • The mutation, which is the trigger parameter, is the "new" value.
>> The trigger cannot see the "old" value.
>> >       • Triggers are executed asynchronously some time after the write
>> which fired it is acknowledged to the client.
>> >       • Triggers are executed once during normal execution. We guarantee
>> "at least once" execution in case of node failures.
>> > Cheers,
>> > Maxim
>> >
>> >
>> > On Thu, Feb 10, 2011 at 8:45 AM, Jeremy Hanna
>> > <jeremy.hanna1234@gmail.com> wrote:
>> > > Hey guys,
>> > >
>> > > I was just wondering if it would be a good time to unify discussions on
>> plugins/triggers/coprocessors?
>> > >
>> > > https://issues.apache.org/jira/browse/CASSANDRA-1016
>> > > https://issues.apache.org/jira/browse/CASSANDRA-1311
>> > >
>> > > I was going to email the dev list but since I don't know if all of you
>> follow the dev list and you guys are the ones that expressed the most
>> interest, I thought I would start here.
>> >
>> > Yeah, they're all tackling basically the same problem. For which we
>> > should have a single solution.
>> >
>> > -ryan
>> >
>>
>>
>

Mime
View raw message