On Sun, Jan 30, 2011 at 3:41 PM, Ted Yu <[email protected]> wrote: > Using 0.90 RC3 on our 7 node clsuter, the first time (after cluster start) > our map tasks ran quite fast writing to hbase (client side buffer size being > 17MB). >
Can you come up on release 0.90.0 Ted? 17MB client buffer might be a little large. > If I run the same hadoop job soon after the first finishes, there is > noticeable slow down. > What do you see in your ganglia? Anything else running on cluster at the time? What are the machines doing? CPU, iowait? Swapping? Thanks, St.Ack
