Hi again, I'm using HBase 0.92.1-cdh4.0.0. I have two server machine with 48Gb RAM,12 physical core & 24 logical core that contain 12 nodes(6 nodes on each server). Each node has 8Gb RAM & 2 VCPU. I've set some parameter that get better result like set WAL=off on put,but some parameters like Heap-size,Deferred log flush don't help me. Beside that I have another question,why each time I've run mapreduce,I've got different result time while all the config & hardware are same & not change ?
Tnx you guys On Tue, Jan 8, 2013 at 8:42 AM, Ted Yu <yuzhih...@gmail.com> wrote: > Have you read through http://hbase.apache.org/book.html#performance ? > > What version of HBase are you using ? > > Cheers > > On Mon, Jan 7, 2013 at 9:05 PM, Farrokh Shahriari < > mohandes.zebeleh...@gmail.com> wrote: > > > Hi there > > I have a cluster with 12 nodes that each of them has 2 core of CPU. Now,I > > want insert large data about 2Gb in 80 sec ( or 6Gb in 240sec ). I've > used > > Map-Reduce over hbase,but I can't achieve proper result . > > I'd be glad if you tell me what I can do to get better result or which > > parameters should I config or tune to improve Map-Reduce/Hbase > performance > > ? > > > > Tnx > > >
