Zhijie Shen created YARN-3881: --------------------------------- Summary: Writing RM cluster-level metrics Key: YARN-3881 URL: https://issues.apache.org/jira/browse/YARN-3881 Project: Hadoop YARN Issue Type: Sub-task Components: timelineserver Reporter: Zhijie Shen Assignee: Zhijie Shen
RM has a bunch of metrics that we may want to write into the timeline backend to. I attached the metrics.json that I've crawled via {{http://localhost:8088/jmx?qry=Hadoop:*}}. IMHO, we need to pay attention to three groups of metrics: 1. QueueMetrics 2. JvmMetrics 3. ClusterMetrics The problem is that unlike other metrics belongs to a single application, these ones belongs to RM or cluster-wide. Therefore, current write path is not going to work for these metrics because they don't have the associated user/flow/app context info. We need to rethink of modeling cross-app metrics and the api to handle them. -- This message was sent by Atlassian JIRA (v6.3.4#6332)