> Also, if there's hot spot is there any way out of it, other than restarting > from scratch… A cluster with a changed partitioner is like a mule with a spinning wheel. No one knows how it changed and danged if it knows how to return your data . (You cannot change it.)
By uniform I meat evenly distributed across the range of values. That is what the RandomPartitioner does by using the MD5 transform (also means we know that the tokens have finite range). Cheers ----------------- Aaron Morton Freelance Developer @aaronmorton http://www.thelastpickle.com On 10/02/2012, at 8:31 AM, Tharindu Mathew wrote: > That sounds like writing a DB... indexing the index row.... :) > > By making the keys uniform.... Do you mean like keep the initial X characters > the same or the last Y the same... Could you elaborate, please? > > Also, if there's hot spot is there any way out of it, other than restarting > from scratch... > > On Tue, Jan 24, 2012 at 3:50 PM, R. Verlangen <ro...@us2.nl> wrote: > If you would like to index your rows in an "index-row", you could also choose > for indexing the "index-rows". This will scale up for any needs and create a > tree structure. > > > 2012/1/24 aaron morton <aa...@thelastpickle.com> > Nothing I can thin of other than making the keys uniform. > > Having a single index row with the RP can be a pain. Is there a way to > partition it ? > > Cheers > > > ----------------- > Aaron Morton > Freelance Developer > @aaronmorton > http://www.thelastpickle.com > > On 23/01/2012, at 11:42 PM, Tharindu Mathew wrote: > >> Hi, >> >> We use Cassandra in a way we always want to range slice queries. Because, of >> the tendency to create hotspots with OrderedPartioner we decided to use >> RandomPartitioner. Then we would use, a row as an index row, holding values >> of the other row keys of the CF. >> >> I feel this has become a burden and would like to move to an >> OrderedPartioner to avoid this work around. The index row workaround which >> has become cumbersome when we query the data store. >> >> Is there any tips we can follow to allow for lesser amount of hot spots? >> >> -- >> Regards, >> >> Tharindu >> >> blog: http://mackiemathew.com/ >> > > > > > > -- > Regards, > > Tharindu > > blog: http://mackiemathew.com/ >
