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Maysam Yabandeh commented on YARN-2162: --------------------------------------- If we add this feature, it should certainly be optional. Think of the following scenario, which quite usual: # Cluster is divided between 100 queues # Queue 1 require more resources and ask for more capacity # More machines added to the cluster to respond to the new demand of Queue 1 # The min and max Resources of Queue 1 is updated accordingly If the queues' min and max resources are expressed in terms of percentage, then all the queues have to update their percentage. > Fair Scheduler :ability to configure minResources and maxResources in terms > of percentage > ----------------------------------------------------------------------------------------- > > Key: YARN-2162 > URL: https://issues.apache.org/jira/browse/YARN-2162 > Project: Hadoop YARN > Issue Type: Improvement > Components: scheduler > Reporter: Ashwin Shankar > Labels: scheduler > > minResources and maxResources in fair scheduler configs are expressed in > terms of absolute numbers X mb, Y vcores. > As a result, when we expand or shrink our hadoop cluster, we need to > recalculate and change minResources/maxResources accordingly, which is pretty > inconvenient. > We can circumvent this problem if we can (optionally) configure these > properties in terms of percentage of cluster capacity. -- This message was sent by Atlassian JIRA (v6.2#6252)