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Posted to issues@flink.apache.org by "Sihua Zhou (JIRA)" <ji...@apache.org> on 2018/04/16 12:47:00 UTC
[jira] [Updated] (FLINK-7866) Weigh list of preferred locations for
scheduling
[ https://issues.apache.org/jira/browse/FLINK-7866?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sihua Zhou updated FLINK-7866:
------------------------------
Fix Version/s: (was: 1.5.0)
1.6.0
> Weigh list of preferred locations for scheduling
> ------------------------------------------------
>
> Key: FLINK-7866
> URL: https://issues.apache.org/jira/browse/FLINK-7866
> Project: Flink
> Issue Type: Improvement
> Components: Scheduler
> Affects Versions: 1.4.0, 1.3.2
> Reporter: Till Rohrmann
> Assignee: Sihua Zhou
> Priority: Major
> Fix For: 1.6.0
>
>
> [~sihuazhou] proposed to not only use the list of preferred locations to decide where to schedule a task, but to also weigh the list according to how often a location appeared and then select the location based on the weight. That way, we would obtain better locality in some cases.
> Example:
> Preferred locations list: {{[location1, location2, location2]}}
> Weighted preferred locations list {{[(location2 , 2), (location1, 1)]}}
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