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Date: Wed, 26 Jul 2017 18:50:01 +0000 (UTC)
From: "Konstantinos Karanasos (JIRA)" <jira@apache.org>
To: yarn-issues@hadoop.apache.org
Message-ID: <JIRA.12786252.1427474746000.20375.1501095001585@Atlassian.JIRA>
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Subject: [jira] [Commented] (YARN-3409) Support Node Attribute functionality
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archived-at: Wed, 26 Jul 2017 18:50:10 -0000


    [ https://issues.apache.org/jira/browse/YARN-3409?page=3Dcom.atlassian.=
jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=3D16102=
100#comment-16102100 ]=20

Konstantinos Karanasos commented on YARN-3409:
----------------------------------------------

We can use brackets instead of square brackets: {{node1:java=3D8(string),ss=
d=3Dfalse(boolean)}}.
Using {{:}} both for the node and the data type will lead to confusion I am=
 afraid. In the expression {{n1:java=3Djdk8,n2:boolean=3Dfalse}}, one could=
 read it as node n1 has an attribute java=3Djdk8, and node n2 has an attrib=
ute boolean=3Dfalse, while another can think that n2 is the name of an attr=
ibute in n1.

> 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-Labe=
ls-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% mi=
nimum capacity and Dev team has 60% of minimum capacity of the partition).
> Attributes are orthogonal to partition, they=E2=80=99re describing featur=
es of node=E2=80=99s hardware/software just for affinity. Some example of a=
ttributes:
> - 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=
 >=3D 2.20 && JDK.version >=3D 8u20 && x86_64).


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