Re: PHP Client

2010-10-24 Thread Jeremy Hanna
Would you like feedback/questions on here or are you going to be using http://groups.google.com/group/phpcassa? On Oct 23, 2010, at 8:26 PM, Tyler Hobbs wrote: > Hello all, > > I've been working for a while now on putting together a PHP client that works > with Cassandra 0.7. It's at a decent

Re: PHP Client

2010-10-24 Thread Tyler Hobbs
I would prefer to use http://groups.google.com/group/phpcassa to help keep this list focused. Thanks for the question. - Tyler On Sun, Oct 24, 2010 at 6:25 AM, Jeremy Hanna wrote: > Would you like feedback/questions on here or are you going to be using > http://groups.google.com/group/phpcassa?

Re: [Q] MapReduce behavior and Cassandra's scalability for petabytes of data

2010-10-24 Thread Takayuki Tsunakawa
Hello, Jonathan, Thank you for your kind reply. Could you give me some more opinions/comments? From: "Jonathan Ellis" > (b) Cassandra generates input splits from the sampling of keys each > node has in memory. So if a node does end up with no data for a > keyspace (because of bad OOP balancing

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2010-10-24 Thread Lance Li
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Experiences with Cassandra hardware planning

2010-10-24 Thread Eric Rosenberry
All- Over the past nine months I have been working to tune our hardware configuration to optimally balance CPU/RAM/disk/iops/network per node for our Cassandra workload. Thanks much to those here who have provided helpful advice. I wanted to share back to the community some of the learnings we h

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2010-10-24 Thread Marie-Anne
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RE: Experiences with Cassandra hardware planning

2010-10-24 Thread David Dabbs
Eric, Thanks for the detailed post! Did you need to start your JVMs with numactl in order to take advantage of NUMA? I know the board, OS and JVM must be configured properly, but it's not clear if the JVMs must be started with numactl. Thanks, David From: Eric Rosenberry [mailto:epros...@g

Re: Experiences with Cassandra hardware planning

2010-10-24 Thread Eric Rosenberry
We have not started our JVM's with numactl. I am not sure what (if any) benefit there has been to turning on NUMA in the BIOS. Turning it on could have in fact reduced performance. I suspect that Java is only using memory from one of the processors (since less than half of the physical memory is