Re: riak sizing considerations

2012-01-26 Thread Sebastian Gerlach
Hi Ian, thanks a lot for the answer. Yes this are all important points to consider. Have you a suggestion what's could be better. Have a 'small' ring_creation_size and servers with lets say 20 TB / server or a higher ring_creation_size and more servers with only 4 TB / server. Best regards Sebas

Re: riak sizing considerations

2012-01-26 Thread Sebastian Gerlach
Hi Ian, thanks for your reply. First, thank's a lot for explain the read process in riak. It helps a lot. For the benchmarks i use 4 Server: CPU: 1x Intel(R) Xeon(R) CPU X5670 @ 2.93GHz RAM: 16 GB NET: 1 GBit interface I believe that a cluster can perform over 500 reques

Re: riak sizing considerations

2012-01-25 Thread Ian Plosker
On Tuesday, January 24, 2012 at 5:21 AM, Sebastian Gerlach wrote: > Some other points in my considerations are the time required for a > reorganization after a new node are added to the cluster or a node has > been replaced. > > Sebastian, Sorry I missed this part of your question. The time

Re: riak sizing considerations

2012-01-25 Thread Ian Plosker
Sebastian, With all requests, Riak will attempt to read or write to all replicas regardless of the specified r or w value. The r and w values affect how many reads from or writes to partitions must be completed before the operation is considered successful. As a result, the get (read) and put

riak sizing considerations

2012-01-24 Thread Sebastian Gerlach
Dear Riak-Users, we consider to save a large amount (5000) of binary Data (Images) in a riak cluster. Each image has a size of 648 KB. We want to store 3 copy's of each image. In this case i need to store 5000 * 648 KB * 3 = 90.5 TB Data. This calculation didn't include any overhead for