Re: Number of replica for Luwak

2011-02-23 Thread Bryan Fink
On Wed, Feb 23, 2011 at 10:40 AM, Les Mikesell wrote: > On 2/23/2011 9:11 AM, Bryan Fink wrote: >> >> On Fri, Feb 18, 2011 at 8:54 PM, Les Mikesell >>  wrote: >>> >>> What happens if there is a read of the object while it is in the process >>> of >>> being updated if the update is several differen

Re: Number of replica for Luwak

2011-02-23 Thread Les Mikesell
On 2/23/2011 10:39 AM, Ryan Zezeski wrote: Thanks! A couple more somewhat related questions: is that atomic update nature hard to duplicate outside of luwak (say by a client that needs to keep several items in sync), and if the luwak blocks are immutable, how do you ever clean u

Re: Number of replica for Luwak

2011-02-23 Thread Ryan Zezeski
On Wed, Feb 23, 2011 at 10:40 AM, Les Mikesell wrote: > > > > Thanks! A couple more somewhat related questions: is that atomic update > nature hard to duplicate outside of luwak (say by a client that needs to > keep several items in sync), and if the luwak blocks are immutable, how do > you ever c

Re: Number of replica for Luwak

2011-02-23 Thread Les Mikesell
On 2/23/2011 9:11 AM, Bryan Fink wrote: On Fri, Feb 18, 2011 at 8:54 PM, Les Mikesell wrote: What happens if there is a read of the object while it is in the process of being updated if the update is several different operations? Luwak streams work in an "all or nothing" fashion. That is, no

Re: Number of replica for Luwak

2011-02-23 Thread Bryan Fink
On Fri, Feb 18, 2011 at 8:54 PM, Les Mikesell wrote: > What happens if there is a read of the object while it is in the process of > being updated if the update is several different operations? Luwak streams work in an "all or nothing" fashion. That is, no read will see the result of any stream

Re: Number of replica for Luwak

2011-02-18 Thread Les Mikesell
On 2/18/11 6:34 PM, Ryan Zezeski wrote: I realized what I just said is confusing. I start out saying there is no N/W/R in Luwak and end by saying essentially the opposite. Maybe I shouldn't reply on my iPhone while drinking a beer on my front stoop? Such a nice night in Baltimore. Luwak has

Re: Number of replica for Luwak

2011-02-18 Thread Ryan Zezeski
I realized what I just said is confusing. I start out saying there is no N/W/R in Luwak and end by saying essentially the opposite. Maybe I shouldn't reply on my iPhone while drinking a beer on my front stoop? Such a nice night in Baltimore. Luwak has no _direct_ notion of N/W/R. You can't cal

Re: Number of replica for Luwak

2011-02-18 Thread Ryan Zezeski
Hi Aditya, There are no concepts of N, W, or R in Luwak. This is because Luwak is built _on top_ of Riak. To be more specific, Luwak takes a large file and chunks it into smaller pieces. These smaller pieces are then hashed, and stored under a key equal to the hash value. That is, Luwak use