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Sunil G commented on YARN-3409: ------------------------------- Thanks [~kkaranasos] for comments. Some quick thoughts here. bq.is the plan to use the new constraints API we are introducing in YARN-6593? Yes, you are correct. We will be using new api set from YARN-6593. There are some minor thoughts in relation with that, i ll add same in YARN-6593. bq.In the CLI API the replace and update seem a bit confusing to me ... Adding some more thoughts. In line with [~leftnoteasy] comments, {{replace}} is a single operation, since it is a superset of {{remove}} and {{remove+add}}. We support this in existing node labels with a similar command but syntax is sometime confusing. And I think, and as also mentioned above, {{add}} / {{remove}} will be an operation which may be more happening in system. {{replace}} might be happening when we take system to maintenance mode and do some upgrades. I think more descriptive help seems a very nice addition and better documentation. for cli, we ll handle both. > Support Node Attribute functionality > ------------------------------------ > > Key: YARN-3409 > URL: https://issues.apache.org/jira/browse/YARN-3409 > Project: Hadoop YARN > Issue Type: New Feature > Components: api, capacityscheduler, client > Reporter: Wangda Tan > Assignee: Naganarasimha G R > Attachments: 3409-apiChanges_v2.pdf (4).pdf, > Constraint-Node-Labels-Requirements-Design-doc_v1.pdf, YARN-3409.WIP.001.patch > > > Specify only one label for each node (IAW, partition a cluster) is a way to > determinate how resources of a special set of nodes could be shared by a > group of entities (like teams, departments, etc.). Partitions of a cluster > has following characteristics: > - Cluster divided to several disjoint sub clusters. > - ACL/priority can apply on partition (Only market team / marke team has > priority to use the partition). > - Percentage of capacities can apply on partition (Market team has 40% > minimum capacity and Dev team has 60% of minimum capacity of the partition). > Attributes are orthogonal to partition, they’re describing features of node’s > hardware/software just for affinity. Some example of attributes: > - glibc version > - JDK version > - Type of CPU (x86_64/i686) > - Type of OS (windows, linux, etc.) > With this, application can be able to ask for resource has (glibc.version >= > 2.20 && JDK.version >= 8u20 && x86_64). -- This message was sent by Atlassian JIRA (v6.4.14#64029) --------------------------------------------------------------------- To unsubscribe, e-mail: yarn-issues-unsubscr...@hadoop.apache.org For additional commands, e-mail: yarn-issues-h...@hadoop.apache.org