If you're using C* 3.0 you can probably achieve this with UDFs. http://www.planetcassandra.org/blog/user-defined-functions-in-cassandra-3-0/
On 9 April 2016 at 00:22, Kevin Burton <bur...@spinn3r.com> wrote: > Ha.. Yes... C*... I guess I need something like coprocessors in > bigtable. > > On Fri, Apr 8, 2016 at 1:49 AM, vincent gromakowski < > vincent.gromakow...@gmail.com> wrote: > >> c* I suppose >> >> 2016-04-07 19:30 GMT+02:00 Jonathan Haddad <j...@jonhaddad.com>: >> >>> What is CS? >>> >>> On Thu, Apr 7, 2016 at 10:03 AM Kevin Burton <bur...@spinn3r.com> wrote: >>> >>>> I have a paging model whereby we stream data from CS by fetching >>>> 'pages' thereby reading (sequentially) entire datasets. >>>> >>>> We're using the bucket approach where we write data for 5 minutes, then >>>> we can just fetch the bucket for that range. >>>> >>>> Our app now has TONS of data and we have a piece of middleware that >>>> filters it based on the client requests. >>>> >>>> So if they only want english they just get english and filter away >>>> about 60% of our data. >>>> >>>> but it doesn't support condition pushdown. So ALL this data has to be >>>> sent from our CS boxes to our middleware and filtered there (wasting a lot >>>> of network IO). >>>> >>>> Is there away (including refactoring the code) that I could push this >>>> this into CS? Maybe some way I could discovery the CS topology and put >>>> daemons on each of our CS boxes and fetch from CS directly (doing the >>>> filtering there). >>>> >>>> Thoughts? >>>> >>>> -- >>>> >>>> We’re hiring if you know of any awesome Java Devops or Linux Operations >>>> Engineers! >>>> >>>> Founder/CEO Spinn3r.com >>>> Location: *San Francisco, CA* >>>> blog: http://burtonator.wordpress.com >>>> … or check out my Google+ profile >>>> <https://plus.google.com/102718274791889610666/posts> >>>> >>>> >> > > > -- > > We’re hiring if you know of any awesome Java Devops or Linux Operations > Engineers! > > Founder/CEO Spinn3r.com > Location: *San Francisco, CA* > blog: http://burtonator.wordpress.com > … or check out my Google+ profile > <https://plus.google.com/102718274791889610666/posts> > > -- Kurt Greaves k...@instaclustr.com www.instaclustr.com
