[GitHub] beyondli commented on issue #7320: where PS-lite implementation of server manager & hash ring ??

[gi...@git.apache.org]

beyondli commented on issue #7320: where PS-lite implementation of server manager & hash ring ??
URL: https://github.com/apache/incubator-mxnet/issues/7320#issuecomment-319981575
 
 
   
   1:if no hash ring , what kind of policy to implement **consistent Hashing**?since this is such important factor to scale server node ??
   
   2:all the node (server/worker) managment is coded in van.cc, rigint??
   
   3:seems code below is hash coded or not , it just linear transformation from rank to ID, even not the simplest linear hash.
   int id = node.role == Node::SERVER ?
   Postoffice::ServerRankToID(num_servers_) : 
   Postoffice::WorkerRankToID(num_workers_);
   
   4:why remove hash ring in new version? Is there better method instead of hash ring?? if not , how to improve load balance  that server node added or removed dynamiclly hash ring can solve better??
   
   thanks!!
   
 
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