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 >>>> >>> >>> >> >
