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Posted to issues@flink.apache.org by "Zhu Zhu (Jira)" <ji...@apache.org> on 2019/12/09 06:24:00 UTC
[jira] [Commented] (FLINK-13056) Optimize region failover
performance on calculating vertices to restart
[ https://issues.apache.org/jira/browse/FLINK-13056?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16991173#comment-16991173 ]
Zhu Zhu commented on FLINK-13056:
---------------------------------
postpone this improvement to 1.11.
> Optimize region failover performance on calculating vertices to restart
> -----------------------------------------------------------------------
>
> Key: FLINK-13056
> URL: https://issues.apache.org/jira/browse/FLINK-13056
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.9.0, 1.10.0
> Reporter: Zhu Zhu
> Assignee: Zhu Zhu
> Priority: Major
> Labels: pull-request-available
> Fix For: 1.11.0
>
> Time Spent: 10m
> Remaining Estimate: 0h
>
> Currently some region boundary structures are calculated each time of a region failover. This calculation can be heavy as its complexity goes up with execution edge count.
> We tested it in a sample case with 8000 vertices and 16,000,000 edges. It takes ~2.0s to calculate vertices to restart.
> (more details in [https://docs.google.com/document/d/197Ou-01h2obvxq8viKqg4FnOnsykOEKxk3r5WrVBPuA/edit?usp=sharing)]
> That's why we'd propose to cache the region boundary structures to improve the region failover performance.
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