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From "Tsuyoshi OZAWA (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2017) Merge some of the common lib code in schedulers
Date Tue, 13 May 2014 15:23:17 GMT

    [ https://issues.apache.org/jira/browse/YARN-2017?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13996492#comment-13996492
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Tsuyoshi OZAWA commented on YARN-2017:
--------------------------------------

Thanks for your patch, Jian! Some comments:

1. +1 for using Generics to avoid warnings by casting as Sandy and Wangda mentioned.
2. Can we assert node with Preconditions.checkNotNull() in SchedulerNode?
{code}
  public SchedulerNode(RMNode node, boolean usePortForNodeName) {
    this.rmNode = node;
    this.availableResource = Resources.clone(node.getTotalCapability());
    this.totalResourceCapability = Resources.clone(node.getTotalCapability());
    ...
  }
{code}
3. Some lines over 80 chars per line. 

> Merge some of the common lib code in schedulers
> -----------------------------------------------
>
>                 Key: YARN-2017
>                 URL: https://issues.apache.org/jira/browse/YARN-2017
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>            Reporter: Jian He
>            Assignee: Jian He
>         Attachments: YARN-2017.1.patch
>
>
> A bunch of same code is repeated among schedulers, e.g:  between FicaSchedulerNode and
FSSchedulerNode. It's good to merge and share them in a common base.



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