It'll still be a long int.

I don't know what format is. User_id generation will, someday, be similar.

-John Kalucki
http://twitter.com/jkalucki
Twitter, Inc.


On Wed, Aug 25, 2010 at 6:59 PM, D. Smith <emai...@sharedlog.com> wrote:

> Ok, so what column type show we make the status_id now in MySQL?
>
> By the way, you are not planning to also change format or user_id, are
> you?
>
> On Aug 23, 11:17 pm, John Kalucki <j...@twitter.com> wrote:
> > We're not using Cassandra to store tweets just yet. See:
> http://engineering.twitter.com/2010/07/cassandra-at-twitter-today.html
> >
> > I don't think we've announced our approach for tweet storage as yet.
> >
> > -John Kaluckihttp://twitter.com/jkalucki
> > Twitter, Inc.
> >
> >
> >
> > On Mon, Aug 23, 2010 at 8:03 PM, D. Smith <emai...@sharedlog.com> wrote:
> >
> > > Another one hits the MySQL brick wall.
> > > I'm surprised someone with as much data as you have have managed to
> > > stay with MySQL for as long as you have.
> > > I must have been a real pain to constantly fight the loosing MySQL
> > > optimization battle.
> >
> > > It would be very interesting to know what made you choose Cassandra
> > > over other NoSQL solutions.
> > > I hope you will post a nice blog post about this, why you chose
> > > Cassandra? What alternative have you considered?
> >
> > > On Aug 23, 6:45 pm, Matt Harris <thematthar...@twitter.com> wrote:
> > > > Hey Developers!
> >
> > > > A while ago we let you know about the new Tweet ID generation service
> > > > we developed called Snowflake and published the source code so you
> > > > could get familiar with how it works. Today, we're announcing that at
> > > > 10am PDT on Tuesday September 21st, 2010 Snowflake will be in use on
> > > > our production systems and that status IDs will no longer be
> > > > sequential.
> >
> > > > Snowflake still uses 64-bit unsigned integers but instead of being
> > > > sequential they will instead be based on time and composed of: a
> > > > timestamp, a worker number and a sequence number. For the majority of
> > > > you this change will go unnoticed and your applications will continue
> > > > to function without the need for any changes. In addition the API is
> > > > ready for Snowflake and parameters such as max_id and since_id will
> > > > work as expected. Snowflake does mean Tweet IDs will no longer be
> > > > useful for data analysis, and things like counting Tweets by
> > > > subtracting status IDs will not be possible.
> >
> > > > We listened when you told us about sorting Tweets by ID and knew that
> > > > we needed to keep the ID roughly sortable. With Snowflake if two
> > > > Tweets are posted within 1 second of each other they will be within a
> > > > second of each other in the ID space too. This means although Tweets
> > > > will no longer be sorted, they will be k-sorted to approximately 1
> > > > second.
> >
> > > > The key points:
> > > > * Status IDs will be unique
> > > > * Status IDs will continue to increase - Tweets created later in the
> > > > day will have a higher ID that those created in the morning
> > > > * Order will be maintained for Tweets allowing you to sort by Status
> > > > ID. The accuracy of the sort will be to approximately 1 second,
> > > > meaning Tweets created within a second of each other have no order.
> > > > * All existing API methods will continue to work the same as before
> > > > * Previous status IDs will be unchanged
> > > > * There will be a noticeable jump in the numerical value of status
> IDs
> > > > when we change.
> >
> > > > You can read more about Snowflake on the Twitter Engineering blog:
> > >http://bit.ly/announcing-snowflake
> >
> > > > Best
> >
> > > > Matt Harris
> > > > Developer Advocate, Twitterhttp://twitter.com/themattharris
>
> --
> Twitter developer documentation and resources: http://dev.twitter.com/doc
> API updates via Twitter: http://twitter.com/twitterapi
> Issues/Enhancements Tracker:
> http://code.google.com/p/twitter-api/issues/list
> Change your membership to this group:
> http://groups.google.com/group/twitter-development-talk?hl=en
>

-- 
Twitter developer documentation and resources: http://dev.twitter.com/doc
API updates via Twitter: http://twitter.com/twitterapi
Issues/Enhancements Tracker: http://code.google.com/p/twitter-api/issues/list
Change your membership to this group: 
http://groups.google.com/group/twitter-development-talk?hl=en

Reply via email to