There is also a script added but its not in a release yet its in trunk start-balancer.sh
its in the bin folder this is from the source code * To start: * bin/start-balancer.sh [-threshold <threshold>] * Example: bin/ start-balancer.sh * start the balancer with a default threshold of 10% * bin/ start-balancer.sh -threshold 5 * start the balancer with a threshold of 5% * To stop: * bin/ stop-balancer.sh Billy "Bryan Duxbury" <[EMAIL PROTECTED]> wrote in message news:[EMAIL PROTECTED] > We've been doing some testing with HBase, and one of the problems we ran > into was that our machines are not homogenous in terms of disk capacity. > A few of our machines only have 80gb drives, where the rest have 250s. As > such, as the equal distribution of blocks went on, these smaller machines > filled up first, completely overloading the drives, and came to a > crashing halt. Since one of these machines was also the namenode, it > broke the rest of the cluster. > > What I'm wondering is if there should be a way to tell HDFS to only use > something like 80% of available disk space before considering a machine > full. Would this be a useful feature, or should we approach the problem > from another angle, like using a separate HDFS data partition? > > -Bryan >
