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https://issues.apache.org/jira/browse/YARN-9376?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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lindongdong updated YARN-9376:
------------------------------
Description:
One RMNodeImpl will create a new ContainerIdComparator instance, but it is not
necessary.
we may keep a static ContainerIdComparator instance and it is enough.
org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl#containersToClean
{code:java}
/* set of containers that need to be cleaned */
private final Set<ContainerId> containersToClean = new TreeSet<ContainerId>(
new ContainerIdComparator());
{code}
was:
One RMNodeImpl will create a new ContainerIdComparator instance, but it is not
necessary.
we may keep a static ContainerIdComparator instance is enough.
org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl#containersToClean
{code:java}
/* set of containers that need to be cleaned */
private final Set<ContainerId> containersToClean = new TreeSet<ContainerId>(
new ContainerIdComparator());
{code}
> too many ContainerIdComparator is not necessary
> -----------------------------------------------
>
> Key: YARN-9376
> URL: https://issues.apache.org/jira/browse/YARN-9376
> Project: Hadoop YARN
> Issue Type: Improvement
> Components: resourcemanager
> Affects Versions: 3.1.1, 3.1.2
> Reporter: lindongdong
> Priority: Minor
>
> One RMNodeImpl will create a new ContainerIdComparator instance, but it is
> not necessary.
> we may keep a static ContainerIdComparator instance and it is enough.
> org.apache.hadoop.yarn.server.resourcemanager.rmnode.RMNodeImpl#containersToClean
> {code:java}
> /* set of containers that need to be cleaned */
> private final Set<ContainerId> containersToClean = new TreeSet<ContainerId>(
> new ContainerIdComparator());
> {code}
>
>
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