Can you tell me why readings corresponding to different timestamps would
appear in the same row ?
Thanks
On Fri, Sep 27, 2013 at 8:57 AM, yonghu <yongyong...@gmail.com> wrote:
> (1,3,5) are timestamp.
>
> regards!
>
> Yong
>
>
> On Fri, Sep 27, 2013 at 4:47 PM, Ted Yu <yuzhih...@gmail.com> wrote:
>
> > In {10K:1, 20K:3, 15K:5}, what does the value (1, 3, 5) represent ?
> >
> > Cheers
> >
> >
> > On Fri, Sep 27, 2013 at 7:24 AM, yonghu <yongyong...@gmail.com> wrote:
> >
> > > Hello,
> > >
> > > In my understanding, the timestamp of each data version is generated by
> > Put
> > > command. The value of TS is either indicated by user or assigned by
> HBase
> > > itself. If the TS is generated by HBase, it only records when (the time
> > > point) that data version is generated (Have no meaning to the
> > application).
> > > However, if TS is indicated by user, it may have a specific meaning to
> > > applications. The reason why I want to ask this question is: How can I
> > > correctly understand the meaning of following data? Suppose I have a
> > table
> > > which is used to record the internet speed of different suppliers for
> > > specific users.
> > > For example,
> > >
> > > rk Network:Supplier Network:speed
> > >
> > > Tom {d:1, c:4} {10K:1, 20K:3, 15K:5}
> > >
> > > Then I can have following different data information representations:
> > >
> > > 1. Supplier d have speeds 10K and 20K. Supplier c have 15K.
> > > 2. Supplier d have speeds 10K, 20K and 15K. We only insert the
> supplier c
> > > but has not inserted any speed information.
> > >
> > > which one is the right understanding? Anyone knows whether there are
> any
> > > predefined semantics of TS in HBase?
> > >
> > > regards!
> > >
> > > Yong
> > >
> >
>
