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Li Lu commented on YARN-3166: ----------------------------- I've updated the proposed package/module structures. We may want to refactor some of our existing aggregator code, mainly changing their names. Here are the latest version: h4. Module: hadoop-yarn-api * package: {{o.a.h.yarn.api.records.timelineservice}} ** ApplicationEntity, ApplicationAttemptEntity, ClusterEntity, ContainerEntity, FlowEntity, FlowRunEntity, HierarchicalTimelineEntity, TimelineEntity ** TimelineEvent ** TimelineMetric ** TimelineQueue ** TimelineUser h4. Module: hadoop-yarn-client * package: {{o.a.h.yarn.client.api}} ** TimelineClient * package: {{o.a.h.yarn.client.api.impl}} ** TimelineClientImpl h4. Module: hadoop-yarn-server/hadoop-yarn-server-timelineservice * package: {{o.a.h.yarn.server.timelineservice.aggregator}} ** BaseAggregatorService -> BaseTimelineAggregator ** AppLevelAggregatorService -> AppLevelTimelineAggregator ** AppLevelServiceManager -> TimelineAggregatorsCollection ** AppLevelServiceProvider -> (TODO: Remove or rename) ** PerNodeAggregatorServer -> PerNodeTimelineAggregatorsAuxService ** PerNodeAggregatorWebService -> TimelineAggregatorWebService * package: {{o.a.h.yarn.server.timelineservice.reader}} ** TimelineReader ** TimelineReaderPool * package: {{o.a.h.yarn.server.timelineservice.storage}} ** TimelineStorage ** TimelineStorageImpl ** HBaseTimelineStorageImpl ** PhoenixTimelineStorageImpl ** InMemTimelineStorageImpl h4. Under hadoop-yarn-common For common YARN libraries. Modules/libraries added into this directory need to be decided on a case-by-case basis. > [Source organization] Decide detailed package structures for timeline service > v2 components > ------------------------------------------------------------------------------------------- > > Key: YARN-3166 > URL: https://issues.apache.org/jira/browse/YARN-3166 > Project: Hadoop YARN > Issue Type: Sub-task > Reporter: Li Lu > Assignee: Li Lu > > Open this JIRA to track all discussions on detailed package structures for > timeline services v2. This JIRA is for discussion only. > For our current timeline service v2 design, aggregator (previously called > "writer") implementation is in hadoop-yarn-server's: > {{org.apache.hadoop.yarn.server.timelineservice.aggregator}} > In YARN-2928's design, the next gen ATS reader is also a server. Maybe we > want to put reader related implementations into hadoop-yarn-server's: > {{org.apache.hadoop.yarn.server.timelineservice.reader}} > Both readers and aggregators will expose features that may be used by YARN > and other 3rd party components, such as aggregator/reader APIs. For those > features, maybe we would like to expose their interfaces to > hadoop-yarn-common's {{org.apache.hadoop.yarn.timelineservice}}? > Let's use this JIRA as a centralized place to track all related discussions. -- This message was sent by Atlassian JIRA (v6.3.4#6332)