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From "Thomas Graves (JIRA)" <j...@apache.org>
Subject [jira] [Created] (YARN-382) SchedulerUtils improve way normalizeRequest sets the resource capabilities
Date Wed, 06 Feb 2013 14:21:13 GMT
Thomas Graves created YARN-382:
----------------------------------

             Summary: SchedulerUtils improve way normalizeRequest sets the resource capabilities
                 Key: YARN-382
                 URL: https://issues.apache.org/jira/browse/YARN-382
             Project: Hadoop YARN
          Issue Type: Improvement
          Components: scheduler
    Affects Versions: 2.0.3-alpha
            Reporter: Thomas Graves


In YARN-370, we changed it from setting the capability to directly setting memory and cores:

-    ask.setCapability(normalized);
+    ask.getCapability().setMemory(normalized.getMemory());
+    ask.getCapability().setVirtualCores(normalized.getVirtualCores());

We did this because before it is directly setting the values in the original resource object
passed in when the AM gets allocated and without it the AM doesn't get the resource normalized
correctly in the submission context. See YARN-370 for more details.

I think we should find a better way of doing this long term, one so we don't have to keep
adding things there when new resources are added, two because its a bit confusing as to what
its doing and prone to someone accidentally breaking it in the future again.  Something closer
to what Arun suggested in YARN-370 would be better but we need to make sure all the places
work and get some more testing on it before putting it in. 

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