Ok I see... so the only thing that changed is the HW right? No upgrades to a new version? Also could it be possible that you changed some configs (or missed them)? BTW counting has a parameter for scanner caching, like you would write: count "myTable", CACHE = 1000
and it should stream through your data. Anything weird in the region server logs? J-D On Mon, May 16, 2011 at 12:13 PM, Himanish Kushary <[email protected]> wrote: > Thanks for the reply. We ran the TestDFSIO benchmark on both the development > and production and found the production to be better.The statistics are > shown below. > > But once we bring HBase into the picture things gets reversed :-( > > The count operation,map-reduces etc becomes less performing on the > production box.We are using Pseudo Distribution mode in both the development > and production servers for both hadoop and hbase. > > *DEVELOPMENT SERVER* > > 11/05/15 21:26:26 INFO fs.TestDFSIO: ----- TestDFSIO ----- : write > 11/05/15 21:26:26 INFO fs.TestDFSIO: Date & time: Sun May 15 > 21:26:26 EDT 2011 > 11/05/15 21:26:26 INFO fs.TestDFSIO: Number of files: 10 > 11/05/15 21:26:26 INFO fs.TestDFSIO: Total MBytes processed: 10000 > 11/05/15 21:26:26 INFO fs.TestDFSIO: Throughput mb/sec: > 58.09495038691237 > 11/05/15 21:26:26 INFO fs.TestDFSIO: Average IO rate mb/sec: > 59.699485778808594 > 11/05/15 21:26:26 INFO fs.TestDFSIO: IO rate std deviation: > 10.54547265175703 > 11/05/15 21:26:26 INFO fs.TestDFSIO: Test exec time sec: 163.354 > 11/05/15 21:26:26 INFO fs.TestDFSIO: > > 11/05/15 21:28:44 INFO fs.TestDFSIO: ----- TestDFSIO ----- : read > 11/05/15 21:28:44 INFO fs.TestDFSIO: Date & time: Sun May 15 > 21:28:44 EDT 2011 > 11/05/15 21:28:44 INFO fs.TestDFSIO: Number of files: 10 > 11/05/15 21:28:44 INFO fs.TestDFSIO: Total MBytes processed: 10000 > 11/05/15 21:28:44 INFO fs.TestDFSIO: Throughput mb/sec: > 682.4075337791729 > 11/05/15 21:28:44 INFO fs.TestDFSIO: Average IO rate mb/sec: > 755.5845947265625 > 11/05/15 21:28:44 INFO fs.TestDFSIO: IO rate std deviation: > 229.60029445080488 > 11/05/15 21:28:44 INFO fs.TestDFSIO: Test exec time sec: 63.896 > 11/05/15 21:28:44 INFO fs.TestDFSIO: > > > > > *PRODUCTION SERVER* > > 5/16 01:00:43 INFO fs.TestDFSIO: ----- TestDFSIO ----- : *WRITE PERFORMANCE* > > 11/05/16 01:00:43 INFO fs.TestDFSIO: Date & time: Mon May 16 01:00:43 > GMT+00:00 2011 > > 11/05/16 01:00:43 INFO fs.TestDFSIO: Number of files: 10 > > 11/05/16 01:00:43 INFO fs.TestDFSIO: Total MBytes processed: 10000 > > 11/05/16 01:00:43 INFO fs.TestDFSIO: Throughput mb/sec: 69.25447557048375 > > 11/05/16 01:00:43 INFO fs.TestDFSIO: Average IO rate mb/sec: > 70.06581115722656 > > 11/05/16 01:00:43 INFO fs.TestDFSIO: IO rate std deviation: > 7.243961483443693 > > 11/05/16 01:00:43 INFO fs.TestDFSIO: Test exec time sec: 126.896 > > > 5/16 01:25:01 INFO fs.TestDFSIO: ----- TestDFSIO ----- : *READ PERFORMANCE* > > 11/05/16 01:25:01 INFO fs.TestDFSIO: Date & time: Mon May 16 01:25:01 > GMT+00:00 2011 > > 11/05/16 01:25:01 INFO fs.TestDFSIO: Number of files: 10 > > 11/05/16 01:25:01 INFO fs.TestDFSIO: Total MBytes processed: 10000 > > 11/05/16 01:25:01 INFO fs.TestDFSIO: Throughput mb/sec: 1487.20999405116 > > 11/05/16 01:25:01 INFO fs.TestDFSIO: Average IO rate mb/sec: > 1525.230712890625 > > 11/05/16 01:25:01 INFO fs.TestDFSIO: IO rate std deviation: > 239.54492784268226 >
