thanks in hbase 0.99.0, I find the rb file: draining_servers.rb
i have some suggestions on this tool: 1. if I add rs hs1 to draining_servers, when hs1 restart, the zk node still exists in zk, but hmaster will not treat hs1 as draining_servers i think when we add a hs to draining_servers, we do not need to store the start code in zk, just store the hostName and port 2. we add hs1 to draining_servers, but if hs1 always restart, we will need to add hs1 several times when we need to delete the draining_servers info of hs1, we will need to delete hs1 several times finally, what is the original motivation of this tool, some scenario descriptions are good. At 2016-04-26 11:33:10, "Ted Yu" <yuzhih...@gmail.com> wrote: >Please take a look at: >bin/draining_servers.rb > >On Mon, Apr 25, 2016 at 8:12 PM, WangYQ <wangyongqiang0...@163.com> wrote: > >> in hbase, I find there is a "drain regionServer" feature >> >> >> if a rs is added to drain regionServer in ZK, then regions will not be >> move to on these regionServers >> >> >> but, how can a rs be add to drain regionServer, we add it handly or rs >> will add itself automaticly