spark-issues mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "chenliang (JIRA)" <j...@apache.org>
Subject [jira] [Created] (SPARK-26542) Support the coordinator to demerminte post-shuffle partitions more reasonably
Date Sat, 05 Jan 2019 04:42:00 GMT
chenliang created SPARK-26542:
---------------------------------

             Summary: Support the coordinator to demerminte post-shuffle partitions more reasonably
                 Key: SPARK-26542
                 URL: https://issues.apache.org/jira/browse/SPARK-26542
             Project: Spark
          Issue Type: Improvement
          Components: SQL
    Affects Versions: 2.3.2, 2.3.1, 2.3.0, 2.2.2, 2.2.1, 2.2.0
            Reporter: chenliang
             Fix For: 2.3.0


For SparkSQL ,when we  open AE by 'set spark.sql.adapative.enable=true',the ExchangeCoordinator
will  introduced to determine the number of post-shuffle partitions. But in some certain conditions,the
coordinator performed not very well, there are always some tasks retained and they worked
with Shuffle Read Size / Records  0.0B/0 ,We could increase the spark.sql.adaptive.shuffle.targetPostShuffleInputSize
to solve this,but  this action is  unreasonable as targetPostShuffleInputSize Should not be
set too large. 




--
This message was sent by Atlassian JIRA
(v7.6.3#76005)

---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscribe@spark.apache.org
For additional commands, e-mail: issues-help@spark.apache.org


Mime
View raw message