Re: Bitmaps

2014-10-07 Thread Eduardo Cusa
The bitmap updates will be daily. I'll watch the video.. Regards Eduardo On Mon, Oct 6, 2014 at 6:04 PM, DuyHai Doan wrote: > Yes this one, not Ooyala sorry. Very inventive usage of C* indeed. Thanks > for the links > > On Mon, Oct 6, 2014 at 11:01 PM, Peter Sanford > wrote: > >> On Mon,

Re: Bitmaps

2014-10-06 Thread DuyHai Doan
Yes this one, not Ooyala sorry. Very inventive usage of C* indeed. Thanks for the links On Mon, Oct 6, 2014 at 11:01 PM, Peter Sanford wrote: > On Mon, Oct 6, 2014 at 1:56 PM, DuyHai Doan wrote: > >> Isn't there a video of Ooyala at some past Cassandra Summit demonstrating >> usage of Cassandra

Re: Bitmaps

2014-10-06 Thread Peter Sanford
On Mon, Oct 6, 2014 at 1:56 PM, DuyHai Doan wrote: > Isn't there a video of Ooyala at some past Cassandra Summit demonstrating > usage of Cassandra for text search using Trigram ? AFAIK they were storing > kind of bitmap to perform OR & AND operations on trigram > That sounds like the talk Matt

Re: Bitmaps

2014-10-06 Thread graham sanderson
You certainly have plenty of freedom to trade off size vs access granularity using multiple blobs. It really depends on how mutable the data is, how you intend to read it, whether it is highly sparse and or highly dense (in which case you perhaps don’t need to store every bit) etc. On Oct 6, 20

Re: Bitmaps

2014-10-06 Thread DuyHai Doan
Isn't there a video of Ooyala at some past Cassandra Summit demonstrating usage of Cassandra for text search using Trigram ? AFAIK they were storing kind of bitmap to perform OR & AND operations on trigram On Mon, Oct 6, 2014 at 10:53 PM, Russell Bradberry wrote: > I highly recommend against sto

Re: Bitmaps

2014-10-06 Thread Russell Bradberry
I highly recommend against storing data structures like this in C*. That really isn't it's sweet spot. For instance, if you were to use the blob type which will give you the smallest size, you are still looking at a cell size of (90,000,000/8/1024) = 10,986 or over 10MB in size, which is prohibiti