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From ruslan usifov <ruslan.usi...@gmail.com>
Subject Re: Several 'TimedOutException' in stress.py
Date Tue, 08 Mar 2011 18:37:09 GMT
2011/3/8 A J <s5alye@gmail.com>

> Trying out stress.py on AWS EC2 environment (4 Large instances. Each
> of 2-cores and 7.5GB RAM. All in the same region/zone.)
>
> python stress.py -o insert  -d
> 10.253.203.224,10.220.203.48,10.220.17.84,10.124.89.81 -l 2 -e ALL -t
> 10 -n 500 -S 1000000 -k
>
> (I want to try with column size of about 1MB. I am assuming the above
> gives me 10 parallel threads each executing 50 inserts sequentially
> (500/10) ).
>
> Getting several timeout errors.TimedOutException(). With just 10
> concurrent writes spread across 4 nodes, kind of surprised to get so
> many timeouts. Any suggestions ?
>
>

It may by EC2 disc speed degradation (io speed of EC2 instances doesnt
const, also can vary in greater limits)

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