LvDongrong created SPARK-23185:
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Summary: Make the configuration "spark.default.parallelism" can be
changed on each SQL session to decrease empty files
Key: SPARK-23185
URL: https://issues.apache.org/jira/browse/SPARK-23185
Project: Spark
Issue Type: Bug
Components: SQL
Affects Versions: 2.2.1
Reporter: LvDongrong
When execute "insert into ... values ...", many empty files will be
generated.We can change the configuration "spark.default.parallelism" to
decrease the number of empty files.But there are many occasions that we want to
chang the configuration during each session so as not to influence other sql
sentences, like we may use thrift server to excute many sql sentences on a SQL
session.
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