Thanks a ton, Juho. The command was:
./stress.py -o read -t 50 -d $NODELIST -n 75000000 -k -i 2 I made a few minor modifications to stress.py to count errors instead of logging them, and avoid the pointless try-catch on missing keys. (There are also unrelated edits to restart long runs of inserts.) My version is uploaded here: http://gist.github.com/481966 -- David Schoonover On Jul 19, 2010, at 4:26 PM, Juho Mäkinen wrote: > I'm about to extend my two node cluster with four dedicated nodes and > removing one of the old nodes, leaving a five node cluster. The > cluster is in production, but I can spare it to do some stress testing > in the meantime as I'm also interested about my cluster performance. I > can't dedicate the cluster for the test, but the load at day time > should be low enough not to screw with the end results too much. The > results might come in within a few days as we'll get the nodes up - > hopefully my tests will produce something meaningful data which can be > applied to this issue. > > I haven't used stress.py yet, any tips on that? Could you, David, send > me the stress.py command line which you used? > > - Juho Mäkinen