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Sangjin Lee commented on YARN-3046: ----------------------------------- LGTM. Just to close on one point, at a later point let's consider whether HierarchicalTimelineEntity makes more sense for the MR entities. If the parent-child navigation becomes more important (it's not clear if it will), then there seems to be a slight advantage with using HierarchicalTimelineEntity. If that turns out to be the case, we could conceivably create subclasses in a standard place for MR, and have all use cases use those concrete subclasses. But I'm fine deferring that aspect a little bit. It's not a critical point. > [Event producers] Implement MapReduce AM writing MR events to v2 ATS > -------------------------------------------------------------------- > > Key: YARN-3046 > URL: https://issues.apache.org/jira/browse/YARN-3046 > Project: Hadoop YARN > Issue Type: Sub-task > Components: timelineserver > Reporter: Sangjin Lee > Assignee: Junping Du > Attachments: YARN-3046-no-test-v2.patch, YARN-3046-no-test.patch, > YARN-3046-v1-rebase.patch, YARN-3046-v1.patch, YARN-3046-v2.patch, > YARN-3046-v3.patch, YARN-3046-v4.patch, YARN-3046-v5.patch, YARN-3046-v6.patch > > > Per design in YARN-2928, select a handful of MR metrics (e.g. HDFS bytes > written) and have the MR AM write the framework-specific metrics to ATS. -- This message was sent by Atlassian JIRA (v6.3.4#6332)