You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Michael Zhang (Jira)" <ji...@apache.org> on 2021/07/20 22:31:00 UTC
[jira] [Created] (SPARK-36234) Consider mapper location and shuffle
block size in OptimizeLocalShuffleReader
Michael Zhang created SPARK-36234:
-------------------------------------
Summary: Consider mapper location and shuffle block size in OptimizeLocalShuffleReader
Key: SPARK-36234
URL: https://issues.apache.org/jira/browse/SPARK-36234
Project: Spark
Issue Type: Improvement
Components: SQL
Affects Versions: 3.1.2
Reporter: Michael Zhang
This is a follow-up to SPARK-36105 (OptimizeLocalShuffleReader support reading data of multiple mappers in one task). We should consider using the mapper locations along with shuffle block size when coalescing mappers (specifically in events where there are more mappers than there is parallelism.
--
This message was sent by Atlassian Jira
(v8.3.4#803005)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org