Although, if replication factor spans all nodes, then the disparity in row allocation should be a non-issue when using OrderPreservingPartitioner.
On Wed, May 12, 2010 at 6:42 PM, Vijay <vijay2...@gmail.com> wrote: > If you use Random partitioner, You will NOT get RowKey's sorted. (Columns > are sorted always). > Answer: If used Random partitioner > True True > > Regards, > </VJ> > > > > On Wed, May 12, 2010 at 1:25 AM, David Boxenhorn <da...@lookin2.com> wrote: >> >> You do any kind of range slice, e.g. keys beginning with "abc"? But the >> results will not be ordered? >> >> Please answer one of the following: >> >> True True >> True False >> False False >> >> Explain? >> >> Thanks! >> >> On Sun, May 9, 2010 at 8:27 PM, Vijay <vijay2...@gmail.com> wrote: >>> >>> True, The Range slice support was enabled in Random Partitioner for the >>> hadoop support. >>> Random partitioner actually hash the Key and those keys are sorted so we >>> cannot have the actual key in order.... (Hope this doesnt confuse you)... >>> Regards, >>> </VJ> >>> >>> >>> >>> On Sun, May 9, 2010 at 12:00 AM, David Boxenhorn <da...@lookin2.com> >>> wrote: >>>> >>>> This is something that I'm not sure that I understand. Can somebody >>>> confirm/deny that I understand it? Thanks. >>>> >>>> If you use random partitioning, you can loop through all keys with a >>>> range query, but they will not be sorted. >>>> >>>> True or False? >>>> >>>> On Sat, May 8, 2010 at 3:45 AM, AJ Chen <ajc...@web2express.org> wrote: >>>>> >>>>> thanks, that works. -aj >>>>> >>>>> On Fri, May 7, 2010 at 1:17 PM, Stu Hood <stu.h...@rackspace.com> >>>>> wrote: >>>>>> >>>>>> Your IPartitioner implementation decides how the row keys are sorted: >>>>>> see http://wiki.apache.org/cassandra/StorageConfiguration#Partitioner . >>>>>> You >>>>>> need to be using one of the OrderPreservingPartitioners if you'd like a >>>>>> reasonable order for the keys. >>>>>> >>>>>> -----Original Message----- >>>>>> From: "AJ Chen" <ajc...@web2express.org> >>>>>> Sent: Friday, May 7, 2010 3:10pm >>>>>> To: user@cassandra.apache.org >>>>>> Subject: key is sorted? >>>>>> >>>>>> I have a super column family for "topic", key being the name of the >>>>>> topic. >>>>>> <ColumnFamily Name="Topic" CompareWith="UTF8Type" ColumnType="Super" >>>>>> CompareSubcolumnsWith="BytesType" /> >>>>>> When I retrieve the rows, the rows are not sorted by the key. Is the >>>>>> row key >>>>>> sorted in cassandra by default? >>>>>> >>>>>> -aj >>>>>> -- >>>>>> AJ Chen, PhD >>>>>> Chair, Semantic Web SIG, sdforum.org >>>>>> http://web2express.org >>>>>> twitter @web2express >>>>>> Palo Alto, CA, USA >>>>>> >>>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> AJ Chen, PhD >>>>> Chair, Semantic Web SIG, sdforum.org >>>>> http://web2express.org >>>>> twitter @web2express >>>>> Palo Alto, CA, USA >>>> >>> >> > >
