Renan DelValle created YARN-2408: ------------------------------------ Summary: Resource Request REST API for YARN Key: YARN-2408 URL: https://issues.apache.org/jira/browse/YARN-2408 Project: Hadoop YARN Issue Type: New Feature Components: webapp Reporter: Renan DelValle Priority: Minor
I’m proposing a new REST API for YARN which exposes a snapshot of the Resource Requests that exist inside of the Scheduler. My motivation behind this new feature is to allow external software to monitor the amount of resources being requested to gain more insightful information into cluster usage than is already provided. The API can also be used by external software to detect a starved application and alert the appropriate users and/or sys admin so that the problem may be remedied. Here is the proposed API: {code:xml} <resourceRequests> <MB>96256</MB> <VCores>94</VCores> <appMaster> <applicationId>application_</applicationId> <applicationAttemptId>appattempt_</applicationAttemptId> <queueName>default</queueName> <totalPendingMB>96256</totalPendingMB> <totalPendingVCores>94</totalPendingVCores> <numResourceRequests>3</numResourceRequests> <resourceRequests> <request> <MB>1024</MB> <VCores>1</VCores> <resourceName>/default-rack</resourceName> <numContainers>94</numContainers> <relaxLocality>true</relaxLocality> <priority>20</priority> </request> <request> <MB>1024</MB> <VCores>1</VCores> <resourceName>*</resourceName> <numContainers>94</numContainers> <relaxLocality>true</relaxLocality> <priority>20</priority> </request> <request> <MB>1024</MB> <VCores>1</VCores> <resourceName>master</resourceName> <numContainers>94</numContainers> <relaxLocality>true</relaxLocality> <priority>20</priority> </request> </resourceRequests> </appMaster> </resourceRequests> {code} -- This message was sent by Atlassian JIRA (v6.2#6252)