Hi Amandeep, thanks for that . I've read it already as well as your book. But I believe that it doesn't discuss the "feed" problem , ie: get latest posts from the 2k people I follow. That's for me is the challenge. I would really appreciate any ideas. Thank you. On Wed, 1 Jul 2015 at 7:57 pm Amandeep Khurana <[email protected]> wrote:
> Hi Sleiman > > Take a look at this for some ideas: > > http://0b4af6cdc2f0c5998459-c0245c5c937c5dedcca3f1764ecc9b2f.r43.cf2.rackcdn.com/9353-login1210_khurana.pdf > > -Amandeep > > On Wed, Jul 1, 2015 at 11:53 AM, Sleiman Jneidi <[email protected]> > wrote: > > > Hello everyone, I am working on a scheme design for a time series > database. > > Something very similar to Twitter where people can follow each other and > > see their posts. I've looked at opentsdb but I think my problem is more > > complicated because I don't have the leading "metricid" in the row key. > > I've made several attempts so far but I am not happy with the > performance. > > > > 1. Md5(user)+timestamp . The problem with is when I want to query the > feed, > > I have to do a scan with the highest user ( alphabetical order) and the > > lowest and then add column column filter. Getting the next batch is hard. > > > > 2. Md5(user)+day and then put the posts of the day in the columns with > > timestamp in the qualifier name. Not optimal, getting the next batch is > > hard. > > > > So... What do you guys think? Any ideas for making this efficient or > > possible? > > > > Thanks for your time in reading this. > > Sleiman > > >
