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[YARN-8925] Updating distributed node attributes only when necessary -
YARN - [issue]
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| ...Currently if distributed node attributes exist, even though there is no change, updating for distributed node attributes will happen in every heartbeat between NM and RM. Updating process wi... |
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[YARN-9050] Usability improvements for scheduler activities -
YARN - [issue]
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| ...We have did some usability improvements for scheduler activities based on YARN3.1 in our cluster as follows:1. Not available for multi-thread asynchronous scheduling. App and node activites ... |
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[YARN-9043] Inter-queue preemption sometimes starves an underserved queue when using DominantResourceCalculator -
YARN - [issue]
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| ...To reproduce this problem in UT, we can setup a cluster with resource <40,18> and create 3 queues and apps: queue a: guaranteed=<10,10>, used=<6,10> by app1 queue b: guaran... |
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[YARN-9007] CS preemption monitor should only select GUARANTEED containers as candidates for queue and reserved container preemption -
YARN - [issue]
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| ...Currently CS preemption monitor doesn't consider execution type of containers, so OPPORTUNISTIC containers maybe selected and killed without effect.In some scenario with OPPORTUNISTIC contai... |
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[YARN-5683] Support specifying storage type for per-application local dirs -
YARN - [issue]
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| ...Introduction Some applications of various frameworks (Flink, Spark and MapReduce etc) using local storage (checkpoint, shuffle etc) might require high IO performance. It's useful to allocate... |
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[YARN-7461] DominantResourceCalculator#ratio calculation problem when right resource contains zero value -
YARN - [issue]
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| ...Currently DominantResourceCalculator#ratio may return wrong result when right resource contains zero value. For example, there are three resource types such as <memory-mb, vcores, vssd>... |
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[YARN-8958] Schedulable entities leak in fair ordering policy when recovering containers between remove app attempt and remove app -
YARN - [issue]
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| ...We found a NPE in ClientRMService#getApplications when querying apps with specified queue. The cause is that there is one app which can't be found by calling RMContextImpl#getRMApps(is finis... |
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[YARN-8917] Absolute (maximum) capacity of level3+ queues is wrongly calculated for absolute resource -
YARN - [issue]
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| ...Absolute capacity should be equal to multiply capacity by parent-queue's absolute-capacity,but currently it's calculated as dividing capacity by parent-queue's absolute-capacity.Calculation ... |
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[YARN-8233] NPE in CapacityScheduler#tryCommit when handling allocate/reserve proposal whose allocatedOrReservedContainer is null -
YARN - [issue]
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| ...Recently we saw a NPE problem in CapacityScheduler#tryCommit when try to find the attemptId by calling c.getAllocatedOrReservedContainer().get... from an allocate/reserve proposal. But got n... |
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[YARN-8505] AMLimit and userAMLimit check should be skipped for unmanaged AM -
YARN - [issue]
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| ...AMLimit and userAMLimit check in LeafQueue#activateApplications should be skipped for unmanaged AM whose resource is not taken from YARN cluster.... |
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