[jira] [Updated] (MESOS-2485) Add ability to distinguish slave removals metrics by reason.

["Benjamin Mahler (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MESOS-2485?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Benjamin Mahler updated MESOS-2485:
-----------------------------------
          Sprint: Twitter Mesos Q1 Sprint 6
        Assignee: Benjamin Mahler
    Story Points: 1

> Add ability to distinguish slave removals metrics by reason.
> ------------------------------------------------------------
>
>                 Key: MESOS-2485
>                 URL: https://issues.apache.org/jira/browse/MESOS-2485
>             Project: Mesos
>          Issue Type: Improvement
>          Components: master
>            Reporter: Benjamin Mahler
>            Assignee: Benjamin Mahler
>              Labels: twitter
>
> Currently we only expose a single removal metric ({{"master/slave_removals"}}) which makes it difficult to distinguish between removal reasons in the alerting.
> Currently, a slave can be removed for the following reasons:
> # Health checks failed.
> # Slave unregistered.
> # Slave was replaced by a new slave (on the same endpoint).
> In the case of (2), we expect this to be due to maintenance and don't want to be notified as strongly as with health check failures.



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