[jira] [Assigned] (MESOS-4833) Poor allocator performance with labeled resources and/or persistent volumes

["Neil Conway (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-4833?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Neil Conway reassigned MESOS-4833:
----------------------------------

    Assignee: Neil Conway

> Poor allocator performance with labeled resources and/or persistent volumes
> ---------------------------------------------------------------------------
>
>                 Key: MESOS-4833
>                 URL: https://issues.apache.org/jira/browse/MESOS-4833
>             Project: Mesos
>          Issue Type: Bug
>          Components: allocation
>            Reporter: Neil Conway
>            Assignee: Neil Conway
>            Priority: Critical
>              Labels: mesosphere, resources
>             Fix For: 0.28.0
>
>
> Modifying the {{HierarchicalAllocator_BENCHMARK_Test.ResourceLabels}} benchmark from https://reviews.apache.org/r/43686/ to use distinct labels between different slaves, performance regresses from ~2 seconds to ~3 minutes. The culprit seems to be the way in which the allocator merges together resources; reserved resource labels (or persistent volume IDs) inhibit merging, which causes performance to be much worse.



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