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From "Carlo Curino (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-6608) Backport all SLS improvements from trunk to branch-2
Date Fri, 02 Jun 2017 21:34:04 GMT

    [ https://issues.apache.org/jira/browse/YARN-6608?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16035458#comment-16035458

Carlo Curino commented on YARN-6608:

[~yufeigu] The question you ask if very reasonable, yet non-trivial to answer. My main concern
is that there are some patches (e.g., HDFS-10266) which we do not fully import---that patch
specifically is an HDFS patch, which only modifies a .json file in SLS.  This was one of the
concerns we discussed with [~leftnoteasy] and [~chris.douglas] early on, as we might be backporting
"parts of a patch".  This might be enough for the SLS to work properly, though might make
later backports of patchs a little more clumsy (you will have to exclude the portion of the
patch that touches SLS).  Backporting all full patches is likely overkill/does not make sense,
but it is needed for SLS to work.  [~leftnoteasy]'s point to me was that this raw approach
is better than living with the choppy/partial implementation of SLS we have in branch-2. 
Moreover, I see from the last yetus that there is some JDK 1.7 issues to look at (and I don't
have much time for this right now, so help is welcome here). 

What do you guys think about this? Is it worth doing like this?

> Backport all SLS improvements from trunk to branch-2
> ----------------------------------------------------
>                 Key: YARN-6608
>                 URL: https://issues.apache.org/jira/browse/YARN-6608
>             Project: Hadoop YARN
>          Issue Type: Improvement
>    Affects Versions: 2.9.0
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>         Attachments: YARN-6608-branch-2.v0.patch, YARN-6608-branch-2.v1.patch, YARN-6608-branch-2.v2.patch
> The SLS has received lots of attention in trunk, but only some of it made it back to
branch-2. This patch is a "raw" fork-lift of the trunk development from hadoop-tools/hadoop-sls.

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