what is the fileSize you are specifying for TestDFSIO? I think, If you haven't specified this value then default is 1MB. This might cause client bottleneck.
-Bharath ________________________________ From: sendy.seftiandy <[email protected]> To: [email protected] Sent: Saturday, May 21, 2011 11:35 PM Subject: Re: TestDFSIO delivers bad values of "throughput" and "average IO rate" after read this thread, i'm still confused. in my cluster when it has 1 master + 3 slaves with nrFiles=3 and total MBytes processed = 1000, the throughput is equal with when it has 1 master+6slaves with nrFiles=6, the total MBytes processed = 1000 can i multiplied the throughpout from first try by the number of slaves (3) and compare that with the throughput from second try multiplied by the number of its slaves i really need the answer, thank you very much -- View this message in context: http://old.nabble.com/Re%3A-TestDFSIO-delivers-bad-values-of-%22throughput%22-and-%22average-IO-rate%22-tp21322404p31673904.html Sent from the Hadoop core-user mailing list archive at Nabble.com.
