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https://issues.apache.org/jira/browse/YARN-3454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15020757#comment-15020757
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Hudson commented on YARN-3454:
------------------------------

FAILURE: Integrated in Hadoop-Hdfs-trunk #2563 (See 
[https://builds.apache.org/job/Hadoop-Hdfs-trunk/2563/])
YARN-3454. Add efficient merge operation to RLESparseResourceAllocation (arun 
suresh: rev da1016365aba1cee9c06771ab142d077379f27af)
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/planning/IterativePlanner.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/InMemoryReservationAllocation.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/test/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/TestRLESparseResourceAllocation.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/InMemoryPlan.java
* hadoop-yarn-project/CHANGES.txt
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/planning/StageAllocatorLowCostAligned.java
* 
hadoop-yarn-project/hadoop-yarn/hadoop-yarn-server/hadoop-yarn-server-resourcemanager/src/main/java/org/apache/hadoop/yarn/server/resourcemanager/reservation/RLESparseResourceAllocation.java


> Add efficient merge operation to RLESparseResourceAllocation
> ------------------------------------------------------------
>
>                 Key: YARN-3454
>                 URL: https://issues.apache.org/jira/browse/YARN-3454
>             Project: Hadoop YARN
>          Issue Type: Sub-task
>          Components: resourcemanager
>    Affects Versions: 2.8.0, 2.7.1, 2.6.2
>            Reporter: Carlo Curino
>            Assignee: Carlo Curino
>             Fix For: 2.8.0
>
>         Attachments: YARN-3454.1.patch, YARN-3454.2.patch, YARN-3454.3.patch, 
> YARN-3454.4.patch, YARN-3454.5.patch, YARN-3454.patch
>
>
> The RLESparseResourceAllocation.removeInterval(...) method handles well exact 
> match interval removals, but does not handles correctly partial overlaps. 
> In the context of this fix, we also introduced static methods to "merge" two 
> RLESparseResourceAllocation, while applying an operator in the process 
> (add/subtract/min/max/subtractTestPositive)



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