SimpleCassie - ORM PHP Client

2010-03-20 Thread Marcin
Hi guys, I would like to share with you link to the PHP client for Cassandra build with flexibility and easy use in mind. It implements some of the ORM concepts. here you go: http://code.google.com/p/simpletools-php/wiki/SimpleCassie P.S. Appreciate any feedback. cheers, /Marcin

running mapreduce against a remote cassandra

2010-03-20 Thread Matteo Caprari
Hi. How do I configure the mapreduce job (example in contrib/wordcount) so that it connects to a cassandra running on a remote host? Thanks -- :Matteo Caprari matteo.capr...@gmail.com

Re: Digg's data model

2010-03-20 Thread Joe Stump
On Mar 20, 2010, at 2:53 AM, Lenin Gali wrote: 1. Eventual consistency: Given a volume of 5K writes / sec and roughly 1500 writes are Updates per sec while the rest are inserts, what kind of latency can be expected in eventual consistency? Depending on the size of the cluster you're not

Re: running mapreduce against a remote cassandra

2010-03-20 Thread Jonathan Ellis
This is covered in the README: If you want to point wordcount at a real cluster, modify the seed and listenaddress settings in storage-conf.xml accordingly. On Sat, Mar 20, 2010 at 9:10 AM, Matteo Caprari matteo.capr...@gmail.com wrote: Hi. How do I configure the mapreduce job (example  in

Re: why Cassandra 0.5.1 write speed is very slow

2010-03-20 Thread Jonathan Ellis
Looks like the right question to ask is what _else_ changed during the move? On Sat, Mar 20, 2010 at 8:44 AM, 郭鹏 gpcus...@gmail.com wrote: Hi: I'm doing a research on move our data from MySQL to Cassandra 0.5.1 At first, I am doing it in the Windows XP, and read the record from MySQL then

RE: node repair

2010-03-20 Thread Todd Burruss
same IP, same token. i'm trying Handling Failure, #3. it is running, a part of the ring, and seems to be handling reads/writes, but does not appear to have received a copy of its data (the last node below). i've searched the all logs for ERRORs but there are none. i will compact the other

Re: why Cassandra 0.5.1 write speed is very slow

2010-03-20 Thread Jonathan Ellis
time a single-threaded client is spending waiting for a reply, is time it's not spending sending another request 2010/3/20 郭鹏 gpcus...@gmail.com: Good ideal, I will try it with client multithread write. But I don't understand the meaning of d the latency in cluster mode hurts that much more.

Re: why Cassandra 0.5.1 write speed is very slow

2010-03-20 Thread Jonathan Ellis
If you're benchmarking throughput, then you absolutely have to be multithreaded. 2010/3/20 郭鹏 gpcus...@gmail.com: You mean I waste lots of time waiting for the write reply? How could I avoid this problem? Using multi-thread for very write operation? I am totally confused. Thx. 在