1. Bug YARN-6743
    yarn.resourcemanager.zk-max-znode-size.bytes description needs spaces in yarn-default.xml
  2. Bug YARN-7011
    yarn-daemon.sh is not respecting --config option
  3. Improvement YARN-6757
    Refactor the usage of yarn.nodemanager.linux-container-executor.cgroups.mount-path
  4. Bug YARN-7141
    Move logging APIs to slf4j in timelineservice after ATSv2 merge
  5. Improvement YARN-6999
    Add log about how to solve Error: Could not find or load main class org.apache.hadoop.mapreduce.v2.app.MRAppMaster
  6. Sub-task YARN-6961
    Remove commons-logging dependency from hadoop-yarn-server-applicationhistoryservice module
  7. Bug YARN-6515
    Fix warnings from Spotbugs in hadoop-yarn-server-nodemanager
  8. Sub-task YARN-6741
    Deleting all children of a Parent Queue on refresh throws exception
  9. Bug YARN-6694
    Add certain envs to the default yarn.nodemanager.env-whitelist
  10. Bug YARN-6771
    Use classloader inside configuration class to make new classes
  11. Improvement YARN-6752
    Display reserved resources in web UI per application
  12. Sub-task YARN-6706
    Refactor ContainerScheduler to make oversubscription change easier
  13. Sub-task YARN-6705
    Add separate NM preemption thresholds for cpu and memory
  14. Improvement YARN-7240
    Add more states and transitions to stabilize the NM Container state machine
  15. Bug YARN-7188
    TimelineSchemaCreator fails to create flowrun table
  16. Sub-task YARN-6234
    Support multiple attempts on the node when AMRMProxy is enabled
  17. Sub-task YARN-6127
    Add support for work preserving NM restart when AMRMProxy is enabled
  18. Bug YARN-7112
    TestAMRMProxy is failing with invalid request
  19. Bug YARN-7116
    CapacityScheduler Web UI: Queue's AM usage is always show on per-user's AM usage.
  20. Bug YARN-7164
    TestAMRMClientOnRMRestart fails sporadically with bind address in use
  21. Bug YARN-7146
    Many RM unit tests failing with FairScheduler
  22. Sub-task YARN-7173
    Container update RM-NM communication fix for backward compatibility
  23. Sub-task YARN-7071
    Add vcores and number of containers in new YARN UI node heat map
  24. Improvement YARN-7280
    Rescan fair-scheduler.xml every n seconds
  25. Bug YARN-7257
    AggregatedLogsBlock reports a bad 'end' value as a bad 'start' value
  26. Improvement YARN-7057
    FSAppAttempt#getResourceUsage doesn't need to consider resources queued for preemption
  27. Sub-task YARN-6979
    Add flag to notify all types of container updates to NM via NodeHeartbeatResponse
  28. Sub-task YARN-6978
    Add updateContainer API to NMClient.
  29. Bug YARN-6920
    Fix resource leak that happens during container re-initialization.
  30. Bug YARN-6872
    Ensure apps could run given NodeLabels are disabled post RM switchover/restart
  31. Sub-task YARN-6873
    Moving logging APIs over to slf4j in hadoop-yarn-server-applicationhistoryservice
  32. Bug YARN-7077
    TestAMSimulator and TestNMSimulator fail
  33. Sub-task YARN-7075
    Better styling for donut charts in new YARN UI
  34. Bug YARN-7020
    TestAMRMProxy#testAMRMProxyTokenRenewal is flakey
  35. Improvement YARN-7049
    FSAppAttempt preemption related fields have confusing names
  36. Sub-task YARN-6958
    Moving logging APIs over to slf4j in hadoop-yarn-server-timelineservice
  37. Sub-task YARN-6893
    Fix Missing Memory and CPU Metric in WebUI v2 Flow Activity Tab
  38. Bug YARN-6870
    Fix floating point inaccuracies in resource availability check in AllocationBasedResourceUtilizationTracker
  39. Bug YARN-6843
    Add unit test for NM to preempt OPPORTUNISTIC containers under high utilization
  40. Bug YARN-6806
    Scheduler-agnostic RM changes support oversubscription
  41. Sub-task YARN-6804
    Allow custom hostname for docker containers in native services
  42. Improvement YARN-6674
    Add memory cgroup settings for opportunistic containers
  43. Improvement YARN-6671
    Add container type awareness in ResourceHandlers.
  44. Sub-task YARN-5067
    Support specifying resources for AM containers in SLS
  45. Improvement YARN-6721
    container-executor should have stack checking
  46. Bug YARN-7014
    container-executor has off-by-one error which can corrupt the heap
  47. Bug YARN-6890
    If UI is not secured, we allow user to kill other users' job even yarn cluster is secured.
  48. Bug YARN-7208
    CMAKE_C_STANDARD take effect in NodeManager package.
  49. Sub-task YARN-6298
    Metric preemptCall is not used in new preemption
  50. Bug YARN-7163
    RMContext need not to be injected to webapp and other Always Running services.
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