[jira] [Commented] (SPARK-20562) Support Maintenance by having a threshold for unavailability

["Kamal Gurala (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-20562?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15995493#comment-15995493 ] 

Kamal Gurala commented on SPARK-20562:
--------------------------------------

Spark is not smart about offers that might be scheduled for maintenance i.e. has an Unavailability period set. It also cannot estimate the amount of time a scheduled Task would use an Offer for.
It is however easier for Users to guess how long they think a Task would run for. So they can easily set a Configurable Threshold(x) that makes the Spark scheduler be wary of which offers it can accept and which ones might go under maintenance in x amount of time.
 

> Support Maintenance by having a threshold for unavailability
> ------------------------------------------------------------
>
>                 Key: SPARK-20562
>                 URL: https://issues.apache.org/jira/browse/SPARK-20562
>             Project: Spark
>          Issue Type: Bug
>          Components: Mesos
>    Affects Versions: 2.1.0
>            Reporter: Kamal Gurala
>
> Make Spark be aware of offers that have an unavailability period set because of a scheduled Maintenance on the node.
> Have a configurable option that's a threshold which ensures that tasks are not scheduled on offers that are within a threshold for maintenance



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