Is flushCommits true or false? On Thu, Jan 10, 2013 at 8:40 PM, Anoop Sam John <anoo...@huawei.com> wrote:
> Hi > You mind telling the configs that you changed and set? BTW which > version of HBase you are using? > > -Anoop- > ________________________________________ > From: Bryan Keller [brya...@gmail.com] > Sent: Friday, January 11, 2013 10:01 AM > To: user@hbase.apache.org > Subject: Maximizing throughput > > I am attempting to configure HBase to maximize throughput, and have > noticed some bottlenecks. In particular, with my configuration, write > performance is well below theoretical throughput. I have a test program > that inserts many rows into a test table. Network I/O is less than 20% of > max, and disk I/O is even lower, maybe around 5% max on all boxes in the > cluster. CPU is well below than 50% max on all boxes. I do not see any I/O > waits or anything in particular than raises concerns. I am using iostat and > iftop to test throughput. To determine theoretical max, I used dd and > iperf. I have spent quite a bit of time optimizing the HBase config > parameters, optimizing GC, etc., and am familiar with the HBase book online > and such. > -- Thanks & Regards, Anil Gupta
