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https://issues.apache.org/jira/browse/YARN-6082?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15831405#comment-15831405
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Sunil G commented on YARN-6082:
-------------------------------
Yes [~vinodkv]. You are correct. Both are un related.
*Analysis*
In {{SchedulerApplicationAttempt#getResourceUsageReport}}, QueueUsagePercent is
calculated as follows
{code}
float queueUsagePerc = calc.divide(cluster, usedResourceClone, Resources
.multiply(cluster, queue.getQueueInfo(false, false).getCapacity()))
* 100;
{code}
Hence if {{queue.getQueueInfo(false, false).getCapacity())}} is 0, we will get
divide by 0 error (INF). hence *queueUsagePercentage* will come as INF and will
corrupt the JSON o/p.
> Invalid REST api response for getApps since queueUsagePercentage is coming as
> INF
> ---------------------------------------------------------------------------------
>
> Key: YARN-6082
> URL: https://issues.apache.org/jira/browse/YARN-6082
> Project: Hadoop YARN
> Issue Type: Bug
> Affects Versions: 2.7.3
> Reporter: Sunil G
> Assignee: Sunil G
> Priority: Critical
>
> {noformat}
> 2017-01-11 07:17:11,475 WARN ipc.Server (Server.java:run(2202)) - Large
> response size 4476919 for call
> org.apache.hadoop.yarn.api.ApplicationClientProtocolPB.getApplications from
> 172.27.0.101:39950 Call#951474 Retry#0
> {noformat}
> Above server log is coming and JSON o/p was coming invalid
> For eg:
> {noformat}
> Unexpected token I in JSON at position 851
> {noformat}
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