I observed what I thought was a similar problem but found that I was actually hitting the physical disks much harder/more efficiently ... I found that I had some spindles with pretty deep queue depths. When I sat back and actually measured, I found that my throughput had substantially increased, moving the bottleneck to the disks. What does iostats tell you?
*.......“The race is not to the swift,nor the battle to the strong,but to those who can see it coming and jump aside.” - Hunter ThompsonDaemeon C.M. ReiydelleUSA (+1) 415.501.0198London (+44) (0) 20 8144 9872* On Tue, Nov 11, 2014 at 2:43 PM, Premal Shah <premal.j.s...@gmail.com> wrote: > Hi, > We recently upgraded from 1.0.4 to 1.2.1 and now have a ton of DFS > balancing to do. > On 1.0.4, when I set the bandwidth to 1 or 10 Gbps, the datanodes got > working and were using a ton of network to get the nodes balanced. However, > looks like 1.2.1 is not honoring the setBandWidth setting, no matter how > high I set it to be. The datanodes are using only around 30Mbps. Is there a > way to speed up the balancing? > > -- > Regards, > Premal Shah. >
