Re: two dimensional slicing

2012-01-30 Thread Bryce Allen
On Mon, 30 Jan 2012 11:14:37 -0600 Bryce Allen wrote: > With RP, the idea is to query many versions in ListVersionIndex > starting at the desired version going backward, hoping that it will > hit a compact version. We could also maintain a separate > CompactVersion index, and accept another query.

Re: two dimensional slicing

2012-01-30 Thread aaron morton
(not trolling) but do you have any ideas on how ? The token produced by the partitioner is used as the key in the distributed hash table so we can map keys to nodes, and evenly distribute load. If the range of tokens for the DHT are infinite it's difficult to evenly map them to a finite set o

Re: two dimensional slicing

2012-01-30 Thread Bryce Allen
two CFs, one for storing compacted complete > > lists and one for storing deltas on the compacted list. Based on > > usage, we will create a new compacted list and start writing deltas > > against that. We should be able to limit the number of deltas in a > > single row

Re: two dimensional slicing

2012-01-29 Thread Terje Marthinussen
On Sun, Jan 29, 2012 at 7:26 PM, aaron morton wrote: > and compare them, but at this point I need to focus on one to get > things working, so I'm trying to make a best initial guess. > > I would go for RP then, BOP may look like less work to start with but it > *will* bite you later. If you use an

Re: two dimensional slicing

2012-01-29 Thread aaron morton
aintain that under all load scenarios. The compacted lists are > straightforward, but there are many ways to structure the deltas and > they all have trade offs. A CF with composite columns that supported > two dimensional slicing would be perfect. > >> * How many names in each version

Re: two dimensional slicing

2012-01-26 Thread Bryce Allen
to below 100; I'd like to be able to keep it lower but I'm not sure we can maintain that under all load scenarios. The compacted lists are straightforward, but there are many ways to structure the deltas and they all have trade offs. A CF with composite columns that supported two dimens

Re: two dimensional slicing

2012-01-23 Thread aaron morton
imension, small_dimension). Data is queried > based on the large dimension, and the client throws out the extra data > in the other dimension. > > Neither of the above solutions are ideal. Does anyone else have a use > case where two dimensional slicing is useful? Given the d

two dimensional slicing

2012-01-20 Thread Bryce Allen
linear ordering on a composite type (large_dimension, small_dimension). Data is queried based on the large dimension, and the client throws out the extra data in the other dimension. Neither of the above solutions are ideal. Does anyone else have a use case where two dimensional slicing is us