Daniel Templeton created YARN-4795: -------------------------------------- Summary: ContainerMetrics drops records Key: YARN-4795 URL: https://issues.apache.org/jira/browse/YARN-4795 Project: Hadoop YARN Issue Type: Bug Components: resourcemanager Affects Versions: 2.9.0 Reporter: Daniel Templeton Assignee: Daniel Templeton
The metrics2 system was implemented to deal with persistent sources. {{ContainerMetrics}} is an ephemeral source, and so it causes problems. Specifically, the {{ContainerMetrics}} only reports metrics once after the container has been stopped. This behavior is a problem because the metrics2 system can ask sources for reports that will be quietly dropped by the sinks that care. (It's a metrics2 feature, not a bug.) If that final report is silently dropped, it's lost, because the {{ContainerMetrics}} won't report anything else ever anymore. -- This message was sent by Atlassian JIRA (v6.3.4#6332)