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From "shuai.xu (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (FLINK-7970) SlotPool support batch allocating slots
Date Fri, 03 Nov 2017 05:40:00 GMT

     [ https://issues.apache.org/jira/browse/FLINK-7970?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

shuai.xu updated FLINK-7970:
    Attachment: sp.jpg

> SlotPool support batch allocating slots
> ---------------------------------------
>                 Key: FLINK-7970
>                 URL: https://issues.apache.org/jira/browse/FLINK-7970
>             Project: Flink
>          Issue Type: Improvement
>          Components: JobManager
>            Reporter: shuai.xu
>            Assignee: shuai.xu
>              Labels: flip-6
>         Attachments: sp.jpg
> Now all slot allocation is one by one from execution to slot pool. If batch allocate
a number of slots to slot pool, then slot pool can assign its cached slots according to the
global slot requests of all executions, so it can make an optimal matching between slot and
execution, this is especially usefully for failover. For example, it can assign a slot to
the execution whose state is just on the machine when failover.

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