incubator-cassandra-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Alvin UW <alvi...@gmail.com>
Subject Re: Consistency question caused by Read_all and Write_one
Date Mon, 13 Dec 2010 18:11:23 GMT
Yes, the same timestamp

2010/12/10 Ryan King <ryan@twitter.com>

> On Fri, Dec 10, 2010 at 12:49 PM, Alvin UW <alvinuw@gmail.com> wrote:
> > Hello,
> >
> >
> > I got a consistency problem in Cassandra.
> >
> > Given a column family with a record:    Id   Name
> >                                                         1    David
> >
> > There are three backups for this column family.
> >
> > Assume there are two write operation happens issued by the same
> application
> > by this order: write_one("1", "Dan") ; write_one("1", "Ken").
> > What will Read_all("1") get?
> >
> > Assume the above two write operations happens exactly the same time in
> two
> > applications,
> > Again what will Read_all("1") get?
>
> By "exactly the same" do you mean "with the same timestamp"?
>
> -ryan
>

Mime
View raw message