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Posted to issues@flink.apache.org by "Yuxin Tan (Jira)" <ji...@apache.org> on 2023/11/22 03:15:00 UTC
[jira] [Created] (FLINK-33612) The table plan of hybrid shuffle may introduce additional blocking edges occasionally
Yuxin Tan created FLINK-33612:
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Summary: The table plan of hybrid shuffle may introduce additional blocking edges occasionally
Key: FLINK-33612
URL: https://issues.apache.org/jira/browse/FLINK-33612
Project: Flink
Issue Type: Bug
Components: Table SQL / Planner
Affects Versions: 1.19.0
Reporter: Yuxin Tan
To enhance the performance of hybrid shuffle, it is imperative to address the inconsistency between hybrid shuffle mode and blocking shuffle mode in certain query plans of TPC-DS (such as q88.sql, q14a.sql, q14b.sql, etc).
In hybrid shuffle mode, these plans introduce additional blocking shuffle edges and result in increased shuffle times, potentially impacting overall efficiency.
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