Fixed Issues in Apache YARN

Review the list of YARN issues that are resolved in Cloudera Runtime 7.1.7 SP1.

COMPX-5201: Use right ResourceCalculator and exclude AM from calculations in CS Fairness based Preemption: Until this fix an incorrect calculator was used to check if resources can be preempted from an application when preemption was enabled with FairOrderingPolicy. This fix ensures that in such cases the correct resourceCalculator is used.
COMPX-7727: Deleting dynamic configuration not working: This is a Technical Preview feature related fix. Until this fix the Delete API was not implemented for the Config Service. As a result Dynamic Configurations could not be deleted using the YARN Queue Manager UI. This fix provides support for Dynamic Configuration deletion.
COMPX-7818: Wrong default version message when reordering placement rules: After reordering placement rules and clicking Save, the common box displayed an incorrect message: Added a new placement rule. This message is fixed, and the box displays: Reordered placement rules.
COMPX-7820: UI bug after adding or deleting a placement rule: After deleting a placement rule the placement rule overview page had to be reloaded before a new placement rule could be created.
COMPX-7828: Could not start dynamically created child queue: Dynamically created child queues could not be started or stopped under legacy managed parent queues in a percentage and absolute modes. This issue is fixed now.
COMPX-7831: Config service GET/versions improvement: Config-service performance issue has been resolved. The config service API for GET versions was modified so now it fetches faster.
COMPX-7887: Fix for CVE-2020-8908.: This issue is now resolved.
COMPX-8284: Maximum am resource percentage value is not updated for dynamically created queues: This issue is resolved.
COMPX-8419: Add menu option to update elastic cluster resource capacity in absolute mode for root queue: Until this release cluster resource capacity in absolute mode could not be modified for the root queue using the YARN Queue Manager.

Apache patch information

HADOOP-17777
HDFS-14977
MAPREDUCE-7307
YARN-6091
YARN-8148
YARN-8659
YARN-8664
YARN-8732
YARN-8864
YARN-8984
YARN-9011
YARN-9584
YARN-9601
YARN-9640
YARN-9642
YARN-9714
YARN-9728
YARN-9956
YARN-9993
YARN-10364
YARN-10393
YARN-10438
YARN-10467
YARN-10482
YARN-10501
YARN-10555
YARN-10649
YARN-10651
YARN-10701
YARN-10703
YARN-10720
YARN-10838
YARN-10852
YARN-10870
YARN-10911
YARN-10934
YARN-10980
YARN-10996