this is what IPartitioner does
On Mon, Apr 26, 2010 at 10:16 AM, Schubert Zhang <zson...@gmail.com> wrote: > Hi Jonathan Ellis and Stu Hood, > > I think, finally, we should provide a user customizable key abstract class. > User can define what types of key and its class, which define how to compare > keys. > > Schubert > > On Sat, Apr 24, 2010 at 1:16 PM, Stu Hood <stu.h...@rackspace.com> wrote: >> >> Your keys cannot be an encoded as binary for OPP, since Cassandra will >> attempt to decode them as UTF-8, meaning that they may not come back in the >> same format. >> >> 0.7 supports byte keys using the ByteOrderedPartitioner, and tokens are >> specified using hex. >> >> -----Original Message----- >> From: "Mark Jones" <mjo...@imagehawk.com> >> Sent: Friday, April 23, 2010 10:55am >> To: "user@cassandra.apache.org" <user@cassandra.apache.org> >> Subject: RE: org.apache.cassandra.dht.OrderPreservingPartitioner Initial >> Token >> >> So if my keys are binary, is there any way to escape the keysequence in? >> >> I have 20 bytes (any value 0x0-0xff is possible) as the key. >> >> Are they compared as an array of bytes? So that I can use truncation? >> >> 4 nodes, broken up by 0x00, 0x40, 0x80, 0xC0? >> >> >> -----Original Message----- >> From: Jonathan Ellis [mailto:jbel...@gmail.com] >> Sent: Friday, April 23, 2010 10:22 AM >> To: user@cassandra.apache.org >> Subject: Re: org.apache.cassandra.dht.OrderPreservingPartitioner Initial >> Token >> >> a normal String from the same universe as your keys. >> >> On Fri, Apr 23, 2010 at 7:23 AM, Mark Jones <mjo...@imagehawk.com> wrote: >> > How is this specified? >> > >> > Is it a large hex #? >> > >> > A string of bytes in hex? >> > >> > >> > >> > http://wiki.apache.org/cassandra/StorageConfiguration doesn't say. >> >> > >
