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[YARN-8059] Resource type is ignored when FS decide to preempt - YARN - [issue]
...Method Fairscheduler#shouldAttemptPreemption doesn't consider resources other than vcore and memory. We may need to rethink it in the resource type scenario. cc Miklos Szegedi, Wilfred Spieg...    Author: Yufei Gu , 2018-10-09, 13:56
[YARN-6307] Refactor FairShareComparator#compare - YARN - [issue]
...The method does three things: compare the min share usage, compare fair share usage by checking weight ratio, break tied by submit time and name. They are mixed with each other which is not ...    Author: Yufei Gu , 2018-09-19, 12:37
[YARN-7903] Method getStarvedResourceRequests() only consider the first encountered resource - YARN - [issue]
...We need to specify rack and ANY while submitting a node local resource request, as YARN-7561 discussed. For example:    ResourceRequest nodeRequest =        &nb...    Author: Yufei Gu , 2018-08-29, 13:57
[YARN-7948] Enable fair scheduler to refresh maximum allocation for multiple resource types - YARN - [issue]
...YARN-7738 did the same thing for CS. We need a fix for FS. We could fix it by moving the refresh code from class CS to class AbstractYARNScheduler....    Author: Yufei Gu , 2018-08-02, 17:21
[YARN-7270] Fix unsafe casting from long to int for class Resource and its sub-classes - YARN - [issue]
...Class Resource has three sub classes(FixedValueResource, LightWeightResource, and ResourcePBImpl). Only FixedValueResource handle long-to-int casting nicely. The other two didn't. This bug i...    Author: Yufei Gu , 2018-06-28, 09:15
[YARN-8184] Too many metrics if containerLocalizer/ResourceLocalizationService uses ReadWriteDiskValidator - YARN - [issue]
...ContainerLocalizer or ResourceLocalizationService will use the ReadWriteDiskValidator as its disk validator when it downloads files if we configure the yarn.nodemanger.disk-validator to Read...    Author: Yufei Gu , 2018-06-24, 08:05
[YARN-7449] Split up class TestYarnClient to TestYarnClient and TestYarnClientImpl - YARN - [issue]
...TestYarnClient tests both YarnClient and YarnClientImpl. We should test YarnClient without thinking of its implementation. That's the whole point of YarnClient. There are bunch of refactors ...    Author: Yufei Gu , 2018-06-24, 08:04
[YARN-4929] Explore a better way than sleeping for a while in some test cases - YARN - [issue]
...The following unit test cases failed because we removed the minimum wait time for attempt in YARN-4807. I manually added sleeps so the tests pass and added a TODO in the code. We can explore...    Author: Yufei Gu , 2018-06-20, 04:07
[YARN-7340] Fix the missing time stamp in exception message in Class NoOverCommitPolicy - YARN - [issue]
...It could be easily figured out by reading code.      throw new ResourceOverCommitException(          "Resources at time " + " would be overcommitted b...    Author: Yufei Gu , 2018-06-01, 05:51
[YARN-6625] yarn application -list returns a tracking URL for AM that doesn't work in secured and HA environment - YARN - [issue]
...The tracking URL given at the command line should work secured or not. The tracking URLs are like and AM web server supposed to redirect it to a RM address like t...    Author: Yufei Gu , 2018-05-25, 04:45