Re: SSTable format

2012-07-14 Thread Sylvain Lebresne
> Any reason rowkeys are not stored by their raws keys on a given node > for RP ? I understand the partitioning across nodes should be > randomized, but on a given node why they are sorted by hash of their > keys and not just by the raw keys ? All the operation that change the topology of the clu

bootstrapping problem. 1.1.2 version

2012-07-14 Thread Michael Cherkasov
Hi all, I have only one node and trying to add new DC with one node too. So I do all steps according this instruction http://www.datastax.com/docs/1.0/operations/cluster_management#adding-nodes-to-a-cluster But looks like nothing happens: D:\db\apache-cassandra-1.1.2\bin>nodetool netstats Start

Re: SSTable format

2012-07-14 Thread Edward Capriolo
There is a more subtle and profound aspect here as well. The md5 transformation is a hash that is good at spraying data around the hash space evenly. For a given sstable their should be good entropy where if the data was not transformed it could be "clumpy" and the sorted string structure and index

nodetool repair

2012-07-14 Thread Michael Theroux
Hello, I'm looking at nodetool repair with the "-pr", vs. non "-pr" option. Looking around, I'm seeing a lot of conflicting information out there. Almost universally, the recommendation is to run nodetool repair with the "-pr" for any day-to-day maintenance. This is my understanding of how i