2011/3/8 A J <s5a...@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)