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https://issues.apache.org/jira/browse/YARN-4218?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15625628#comment-15625628
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Eric Payne commented on YARN-4218:
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[~lichangleo]. Sorry, I should have been more specific. Can you please fix the
following javadocs errors. These came from the new methods that you created:
{noformat}
[ERROR]
/testptch/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ApplicationResourceUsageReport.java:199:
error: @param name not found
[ERROR] * @param memory_seconds the aggregated amount of memory seconds
[ERROR] ^
[ERROR]
/testptch/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ApplicationResourceUsageReport.java:203:
warning: no @param for memorySeconds
[ERROR] public abstract void setPreemptedMemorySeconds(long memorySeconds);
[ERROR] ^
[ERROR]
/testptch/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ApplicationResourceUsageReport.java:218:
error: @param name not found
[ERROR] * @param vcore_seconds the aggregated number of vcore seconds
[ERROR] ^
[ERROR]
/testptch/hadoop/hadoop-yarn-project/hadoop-yarn/hadoop-yarn-api/src/main/java/org/apache/hadoop/yarn/api/records/ApplicationResourceUsageReport.java:222:
warning: no @param for vcoreSeconds
[ERROR] public abstract void setPreemptedVcoreSeconds(long vcoreSeconds);
[ERROR] ^
{noformat}
> Metric for resource*time that was preempted
> -------------------------------------------
>
> Key: YARN-4218
> URL: https://issues.apache.org/jira/browse/YARN-4218
> Project: Hadoop YARN
> Issue Type: Bug
> Components: resourcemanager
> Reporter: Chang Li
> Assignee: Chang Li
> Attachments: YARN-4218.2.patch, YARN-4218.2.patch, YARN-4218.2.patch,
> YARN-4218.2.patch, YARN-4218.3.patch, YARN-4218.4.patch, YARN-4218.5.patch,
> YARN-4218.branch-2.2.patch, YARN-4218.branch-2.patch, YARN-4218.patch,
> YARN-4218.trunk.2.patch, YARN-4218.trunk.3.patch, YARN-4218.trunk.patch,
> YARN-4218.wip.patch, screenshot-1.png, screenshot-2.png, screenshot-3.png
>
>
> After YARN-415 we have the ability to track the resource*time footprint of a
> job and preemption metrics shows how many containers were preempted on a job.
> However we don't have a metric showing the resource*time footprint cost of
> preemption. In other words, we know how many containers were preempted but we
> don't have a good measure of how much work was lost as a result of preemption.
> We should add this metric so we can analyze how much work preemption is
> costing on a grid and better track which jobs were heavily impacted by it. A
> job that has 100 containers preempted that only lasted a minute each and were
> very small is going to be less impacted than a job that only lost a single
> container but that container was huge and had been running for 3 days.
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