You are viewing a plain text version of this content. The canonical link for it is here.
Posted to issues@spark.apache.org by "Sean Owen (JIRA)" <ji...@apache.org> on 2017/03/08 11:43:38 UTC
[jira] [Assigned] (SPARK-19693) SET mapreduce.job.reduces
automatically converted to spark.sql.shuffle.partitions
[ https://issues.apache.org/jira/browse/SPARK-19693?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Sean Owen reassigned SPARK-19693:
---------------------------------
Assignee: Yuming Wang
Affects Version/s: (was: 2.2.0)
Priority: Minor (was: Major)
> SET mapreduce.job.reduces automatically converted to spark.sql.shuffle.partitions
> ---------------------------------------------------------------------------------
>
> Key: SPARK-19693
> URL: https://issues.apache.org/jira/browse/SPARK-19693
> Project: Spark
> Issue Type: Improvement
> Components: SQL
> Affects Versions: 2.1.0
> Reporter: Yuming Wang
> Assignee: Yuming Wang
> Priority: Minor
> Fix For: 2.2.0
>
>
> How to reproduce:
> {code}
> spark-sql> set spark.sql.shuffle.partitions;
> spark.sql.shuffle.partitions 200
> Time taken: 7.118 seconds, Fetched 1 row(s)
> spark-sql> set mapred.reduce.tasks=10;
> spark.sql.shuffle.partitions 10
> Time taken: 5.968 seconds, Fetched 1 row(s)
> spark-sql> set mapreduce.job.reduces=20;
> set mapreduce.job.reduces 20
> Time taken: 0.233 seconds, Fetched 1 row(s)
> spark-sql> set spark.sql.shuffle.partitions;
> spark.sql.shuffle.partitions 10
> Time taken: 0.099 seconds, Fetched 1 row(s)
> {code}
> The {{SET mapreduce.job.reduces}} should automatically converted to {{spark.sql.shuffle.partitions}}, it's similar to {{set mapred.reduce.tasks}}.
--
This message was sent by Atlassian JIRA
(v6.3.15#6346)
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org