Rows are sorted according to the order of the partitioner, see http://wiki.apache.org/cassandra/FAQ#range_rp
Cheers ----------------- Aaron Morton Freelance Cassandra Developer @aaronmorton http://www.thelastpickle.com On 18/08/2011, at 8:53 AM, Thamizh wrote: > Hi All, > > Thanks a lot. > > How to sort row key in CF using CLI / API ? Does it boost the search > performance ? > > As of now, I am inserting row key( as ByteBuffer ) from Hadoop Map/Reduce. It > looks, by default Cassandra does not sort the Row keys. > > Below is the cli command, I have used to create CF. > create column family User with comparator = UTF8Type and subcomparator = > UTF8Type and column_type = 'Super' and key_validation_class = UTF8Type; > > > Regards, > Thamizhannal P > > --- On Wed, 17/8/11, Konstantin Naryshkin <konstant...@a-bb.net> wrote: > > From: Konstantin Naryshkin <konstant...@a-bb.net> > Subject: Re: Reg row limit & sorting > To: user@cassandra.apache.org > Date: Wednesday, 17 August, 2011, 6:56 PM > > 1. The 100 row limit is for listing (i.e. how many rows that the list command > will print). You can give list another limit: > list User limit 1000; > This limit has nothing to do with any internal Cassandra limitation. I am not > aware of any limitation on the number of rows that you can have. > > 2. I believe that you should be fine if you zero pad them (so for example > your IP would be 124.149.040.000, 0.0.0.0 would be 000.000.000.000, etc) or > if you just store them as byte arrays (so 7C 95 28 00 and 00 00 00 00). > > ----- Original Message ----- > From: "Thamizh" <tceg...@yahoo.co.in> > To: user@cassandra.apache.org > Sent: Wednesday, August 17, 2011 5:47:45 AM > Subject: Reg row limit & sorting > > Hi All, > > I have two questions on Cassandra, > > 1. Is there any limit(s) on total no. of rows in a single column family? > > I am using Cassandra-0.8.4 version. > [default@tutorials] list User; > Using default limit of 100 > > It looks, here the default limit is 100. How shall I increase this limit ? > > 2. I wanted to store row key as IP's of 124.149.40.0/24 format? Does it > require custom sorting Or is there any other way to make it sorted order? > > Regards, > Thamizhannal
