Re: Basic Architecture Question

2010-05-01 Thread Jonathan Ellis
It will. 2010/5/1 Patricio Echagüe : > Roger, if you include the last read key as the start key for the next API > call, will that retrieve the same key/row twice? > The documentation says that both keys (start, finish) are included. > Thanks > > On Thu, Apr 29, 2010 at 1:31 PM, Brandon Williams

Re: Basic Architecture Question

2010-04-30 Thread Patricio Echagüe
Roger, if you include the last read key as the start key for the next API call, will that retrieve the same key/row twice? The documentation says that both keys (start, finish) are included. Thanks On Thu, Apr 29, 2010 at 1:31 PM, Brandon Williams wrote: > On Thu, Apr 29, 2010 at 10:19 AM, Davi

Re: Basic Architecture Question

2010-04-29 Thread Brandon Williams
On Thu, Apr 29, 2010 at 10:19 AM, David Boxenhorn wrote: > So now we can do any kind of range queries, not just "for getting all keys" > as Jesse said? > With RP, the key ranges are based on the MD5 sum of the key, so it's really only useful for getting all keys, or obtaining a semi-random row.

Re: Basic Architecture Question

2010-04-29 Thread David Boxenhorn
So now we can do any kind of range queries, not just "for getting all keys" as Jesse said? On Thu, Apr 29, 2010 at 6:04 PM, Roger Schildmeijer wrote: > take a look at get_range_slices and start with "". > then invoke get_range_slices again, but this time use the last key as the > start key > > //

Re: Basic Architecture Question

2010-04-29 Thread Roger Schildmeijer
take a look at get_range_slices and start with "". then invoke get_range_slices again, but this time use the last key as the start key // Roger Schildmeijer On 29 apr 2010, at 16.28em, David Boxenhorn wrote: > How do I do that??? > > On Thu, Apr 29, 2010 at 4:31 PM, Jesse McConnell > wrote

Re: Basic Architecture Question

2010-04-29 Thread David Boxenhorn
How do I do that??? On Thu, Apr 29, 2010 at 4:31 PM, Jesse McConnell wrote: > apparently there is now range query support for getting all keys using the > RP... > > cheers, > jesse > > -- > jesse mcconnell > jesse.mcconn...@gmail.com > > > > On Thu, Apr 29, 2010 at 08:16, David Boxenhorn wrote:

Re: Basic Architecture Question

2010-04-29 Thread Jesse McConnell
apparently there is now range query support for getting all keys using the RP... cheers, jesse -- jesse mcconnell jesse.mcconn...@gmail.com On Thu, Apr 29, 2010 at 08:16, David Boxenhorn wrote: > We want to store objects in Cassandra. In general, the mapping is quite > easy. But for some kind

Basic Architecture Question

2010-04-29 Thread David Boxenhorn
We want to store objects in Cassandra. In general, the mapping is quite easy. But for some kinds of objects, we want to be able to read all of them into memory. We want to use random partitioning, which means that we can't do a range query over keys (is this right?). Is there any way to get ALL th

Re: Architecture question

2010-04-02 Thread Jonathan Ellis
On Fri, Apr 2, 2010 at 10:50 AM, Brian Hawkins wrote: > What pieces of data make up the token that determines on what node the data > is placed? The row key. > Specifically are all the columns placed on the same node?  What about super > columns, are they all placed on the same node? Yes and ye

Architecture question

2010-04-02 Thread Brian Hawkins
What pieces of data make up the token that determines on what node the data is placed? Specifically are all the columns placed on the same node? What about super columns, are they all placed on the same node? Thanks Brian