[jira] [Resolved] (SLIDER-743) Include node failure history when choosing placement hints

["Sumit Mohanty (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SLIDER-743?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sumit Mohanty resolved SLIDER-743.
----------------------------------
    Resolution: Fixed
      Assignee: Sumit Mohanty  (was: Steve Loughran)

> Include node failure history when choosing placement hints
> ----------------------------------------------------------
>
>                 Key: SLIDER-743
>                 URL: https://issues.apache.org/jira/browse/SLIDER-743
>             Project: Slider
>          Issue Type: Improvement
>          Components: appmaster
>    Affects Versions: Slider 0.60
>            Reporter: Steve Loughran
>            Assignee: Sumit Mohanty
>             Fix For: Slider 0.70
>
>         Attachments: SLIDER-743.patch
>
>
> Use the (collected) history on per-node failures to tune placement requests, so that even if there's a history of components running there, if its been failing recently then it's not asked for
> # Add a "recent failures" field to the node entries, alongside the "total failures" counter
> # the scheduled failure count resetter will set that field to zero,alongside the component failures
> # When Slider has to request a new container,  if a node has a recent failure count above some threshold, it will not be requested, even if it is a past location of that component.
> When the placement policy is STRICT, node failure history will not be taken into account



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