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  1. Sub-task YARN-8549
    Adding a NoOp timeline writer and reader plugin classes for ATSv2
  2. Sub-task YARN-7041
    Nodemanager NPE running jobs with security off
  3. Sub-task YARN-7038
    [Atsv2 Security] CollectorNodemanagerProtocol RPC interface doesn't work when service authorization is enabled
  4. Sub-task YARN-7032
    [ATSv2] NPE while starting hbase co-processor when HBase authorization is enabled.
  5. Sub-task YARN-7028
    Backport HADOOP-14386 to YARN-5355 branch
  6. Sub-task YARN-7006
    [ATSv2 Security] Changes for authentication for CollectorNodemanagerProtocol
  7. Sub-task YARN-6905
    Multiple HBaseTimelineStorage test failures due to missing FastNumberFormat
  8. Sub-task YARN-6888
    Refactor AppLevelTimelineCollector such that RM does not have aggregator threads created
  9. Sub-task YARN-6874
    Supplement timestamp for min start/max end time columns in flow run table to avoid overwrite
  10. Sub-task YARN-6861
    Reader API for sub application entities
  11. Sub-task YARN-6850
    Ensure that supplemented timestamp is stored only for flow run metrics
  12. Sub-task YARN-6847
    [ATSv2] NPE in RM while starting timeline collector on recovery after explicit failover
  13. Sub-task YARN-6820
    Restrict read access to timelineservice v2 data
  14. Sub-task YARN-6801
    NPE in RM while setting collectors map in NodeHeartbeatResponse
  15. Sub-task YARN-6734
    Ensure sub-application user is extracted & sent to timeline service
  16. Sub-task YARN-6733
    Add table for storing sub-application entities
  17. Sub-task YARN-6707
    [ATSv2] Update HBase version to 1.2.6
  18. Sub-task YARN-6658
    Remove columnFor() methods of Columns in HBaseTimeline backend
  19. Sub-task YARN-6657
    The column family indicated in AppToFlowTable class javadoc is wrong
  20. Sub-task YARN-6638
    [ATSv2 Security] Timeline reader side changes for loading auth filters and principals
  21. Sub-task YARN-6604
    Allow metric TTL for Application table to be specified through cmd
  22. Sub-task YARN-6563
    ConcurrentModificationException in TimelineCollectorManager while stopping RM
  23. Sub-task YARN-6561
    Update exception message during timeline collector aux service initialization
  24. Sub-task YARN-6559
    Findbugs warning in YARN-5355 branch
  25. Sub-task YARN-6555
    Store application flow context in NM state store for work-preserving restart
  26. Sub-task YARN-6455
    Enhance the timelinewriter.flush() race condition fix
  27. Sub-task YARN-6435
    [ATSv2] Can't retrieve more than 1000 versions of metrics in time series
  28. Sub-task YARN-6424
    TimelineCollector is not stopped when an app finishes in RM
  29. Sub-task YARN-6414
    ATSv2 HBase related tests fail due to guava version upgrade
  30. Sub-task YARN-6377
    NMTimelinePublisher#serviceStop does not stop timeline clients
  31. Sub-task YARN-6376
    Exceptions caused by synchronous putEntities requests can be swallowed
  32. Sub-task YARN-6375
    App level aggregation should not consider metric values reported in the previous aggregation cycle
  33. Sub-task YARN-6357
    Implement putEntitiesAsync API in TimelineCollector
  34. Sub-task YARN-6342
    Make TimelineV2Client's drain timeout after stop configurable
  35. Sub-task YARN-6323
    Rolling upgrade/config change is broken on timeline v2.
  36. Sub-task YARN-6318
    timeline service schema creator fails if executed from a remote machine
  37. Sub-task YARN-6316
    Provide help information and documentation for TimelineSchemaCreator
  38. Sub-task YARN-6256
    Add FROM_ID info key for timeline entities in reader response.
  39. Sub-task YARN-6253
    FlowAcitivityColumnPrefix.store(byte[] rowKey, ...) drops timestamp
  40. Sub-task YARN-6237
    Move UID constant to TimelineReaderUtils
  41. Sub-task YARN-6170
    TimelineReaderServer should wait to join with HttpServer2
  42. Sub-task YARN-6159
    Documentation changes for TimelineV2Client
  43. Sub-task YARN-6146
    Add Builder methods for TimelineEntityFilters
  44. Sub-task YARN-6134
    [ATSv2 Security] Regenerate delegation token for app just before token expires if app collector is active
  45. Sub-task YARN-6133
    [ATSv2 Security] Renew delegation token for app automatically if an app collector is active
  46. Sub-task YARN-6130
    [ATSv2 Security] Generate a delegation token for AM when app collector is created and pass it to AM via NM and RM
  47. Sub-task YARN-6094
    Update the coprocessor to be a dynamically loaded one
  48. Sub-task YARN-6074
    FlowRunEntity does not deserialize long values correctly
  49. Sub-task YARN-6069
    CORS support in timeline v2
  50. Sub-task YARN-6064
    Support fromId for flowRuns and flow/flowRun apps REST API's
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