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https://issues.apache.org/jira/browse/YARN-11633?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17796954#comment-17796954
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ASF GitHub Bot commented on YARN-11633:
---------------------------------------
slfan1989 commented on PR #6356:
URL: https://github.com/apache/hadoop/pull/6356#issuecomment-1857019443
@singer-bin Thank you forYARN's scheduler compares based on memory by
default. We can refer to `FairSharePolicy.java`
Therefore, using memory for comparison in LoadBasedRouterPolicy is in line
with the design rules of the scheduler.
```
/**
* Makes scheduling decisions by trying to equalize shares of memory.
*/
@Private
@Unstable
public class FairSharePolicy extends SchedulingPolicy {
@VisibleForTesting
public static final String NAME = "fair";
private static final Logger LOG =
LoggerFactory.getLogger(FairSharePolicy.class);
private static final String MEMORY =
ResourceInformation.MEMORY_MB.getName();
private static final DefaultResourceCalculator RESOURCE_CALCULATOR =
new DefaultResourceCalculator();
private static final FairShareComparator COMPARATOR =
new FairShareComparator();
@Override
public String getName() {
return NAME;
}
...
```
> [Federation] Improve LoadBasedRouterPolicy To Use Available vcores
> ------------------------------------------------------------------
>
> Key: YARN-11633
> URL: https://issues.apache.org/jira/browse/YARN-11633
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: federation
> Affects Versions: 3.3.6
> Reporter: yanbin.zhang
> Priority: Major
> Labels: pull-request-available
>
> When selecting a subcluster, consider not only available memory but also
> available vcore
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