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Zhijie Shen commented on YARN-3551: ----------------------------------- Created a new patch to change timeline metric APIs according to the aforementioned comments. In addition, change the collection to TreeMap, and sort the data points according to timestamp in descending order. > Consolidate data model change according to the backend implementation > --------------------------------------------------------------------- > > Key: YARN-3551 > URL: https://issues.apache.org/jira/browse/YARN-3551 > Project: Hadoop YARN > Issue Type: Sub-task > Components: timelineserver > Reporter: Zhijie Shen > Assignee: Zhijie Shen > Attachments: YARN-3551-YARN-2928.4.patch, YARN-3551.1.patch, > YARN-3551.2.patch, YARN-3551.3.patch > > > Based on the comments on > [YARN-3134|https://issues.apache.org/jira/browse/YARN-3134?focusedCommentId=14512080&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14512080] > and > [YARN-3411|https://issues.apache.org/jira/browse/YARN-3411?focusedCommentId=14512098&page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#comment-14512098], > we need to change the data model to restrict the data type of > info/config/metric section. > 1. Info: the value could be all kinds object that is able to be > serialized/deserialized by jackson. > 2. Config: the value will always be assumed as String. > 3. Metric: single data or time series value have to be number for aggregation. > Other than that, info/start time/finish time of metric seem not to be > necessary for storage. They should be removed. -- This message was sent by Atlassian JIRA (v6.3.4#6332)