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From "Sunil G (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (YARN-2005) Blacklisting support for scheduling AMs
Date Tue, 27 Jan 2015 18:58:38 GMT

    [ https://issues.apache.org/jira/browse/YARN-2005?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14293971#comment-14293971
] 

Sunil G commented on YARN-2005:
-------------------------------

Hi [~jlowe]

As discussed in YARN-2293 , AMs can be failed in few nodes and such nodes can be avoid while
launching next attempt or even new AMs. 

Scoring mechanism based on AM container failure will be the key point here. A container failure
which is non-related to a buggy application can be considered as genuine candidates here.


Scoring mechanism also has to be lenient time. If a node is black listed, and if its idle
for long time by running only normal containers, such nodes can be brought back as normal
nodes.

I would like to keep a discussion on same here. Please share your thoughts,. 

> Blacklisting support for scheduling AMs
> ---------------------------------------
>
>                 Key: YARN-2005
>                 URL: https://issues.apache.org/jira/browse/YARN-2005
>             Project: Hadoop YARN
>          Issue Type: Improvement
>          Components: resourcemanager
>    Affects Versions: 0.23.10, 2.4.0
>            Reporter: Jason Lowe
>
> It would be nice if the RM supported blacklisting a node for an AM launch after the same
node fails a configurable number of AM attempts.  This would be similar to the blacklisting
support for scheduling task attempts in the MapReduce AM but for scheduling AM attempts on
the RM side.



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