I don't know if I understand correctly that UUIDs are good unless you have a specific reading pattern. In the latter case you can develop a better compound row key.
Yi 從我的 BlackBerry® 無線裝置 -----Original Message----- From: Ramesh S <investt...@gmail.com> Date: Thu, 29 Sep 2011 16:26:05 To: <user@cassandra.apache.org> Reply-To: user@cassandra.apache.org Subject: Re: Is LexicalUUID a good option for generating Ids Thanks Aaron. Appreciate your valuable input/advice. regards, Ramesh On Thu, Sep 29, 2011 at 4:21 PM, aaron morton <aa...@thelastpickle.com>wrote: > UUID will be fine, LexicalUUID should be used for version 2,3,4 and 5 > UUID's. TimeUUID for version 1. > > A > > ----------------- > Aaron Morton > Freelance Cassandra Developer > @aaronmorton > http://www.thelastpickle.com > > On 30/09/2011, at 5:48 AM, Ramesh S wrote: > > > We have to assign Id for each item in our database. Item is linked to geo > location and hence would need hundreds of millions of Ids. > > So is LexicalUUID a good option ? > > > > regards, > > Ramesh > >