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Posted to common-user@hadoop.apache.org by tom uno <lt...@gmail.com> on 2011/10/08 09:12:29 UTC

performance normal?

release 0.21.0
Production System
20 nodes
read 100 megabits per second
write 10 megabits per second
performance normal?

Re: performance normal?

Posted by Brian Bockelman <bb...@cse.unl.edu>.

"Normal operation" is a function of hardware.  Giving the version without the underlying hardware means I get to make up any answer I feel like.

I can't imagine a rational set of hardware where 10 megabits (as in, one megabyte) a second is normal.

Brian

On Oct 8, 2011, at 3:04 AM, Bochun Bai wrote:

> Yes, for single thread HDFS client.
> No, for well designed map-reduce jobs.
> 
> On Sat, Oct 8, 2011 at 3:12 PM, tom uno <lt...@gmail.com> wrote:
>> release 0.21.0
>> Production System
>> 20 nodes
>> read 100 megabits per second
>> write 10 megabits per second
>> performance normal?
>>

Re: performance normal?

Posted by Bochun Bai <bb...@bbcn.name>.

Yes, for single thread HDFS client.
No, for well designed map-reduce jobs.

On Sat, Oct 8, 2011 at 3:12 PM, tom uno <lt...@gmail.com> wrote:
> release 0.21.0
> Production System
> 20 nodes
> read 100 megabits per second
> write 10 megabits per second
> performance normal?
>

Re: performance normal?

Posted by Raj Vishwanathan <ra...@yahoo.com>.

Really horriblr performance

Sent from my iPad
Please excuse the typos. 

On Oct 8, 2011, at 12:12 AM, tom uno <lt...@gmail.com> wrote:

> release 0.21.0
> Production System
> 20 nodes
> read 100 megabits per second
> write 10 megabits per second
> performance normal?