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Posted to issues@spark.apache.org by "LvDongrong (JIRA)" <ji...@apache.org> on 2018/01/23 03:06:00 UTC

[jira] [Created] (SPARK-23185) Make the configuration "spark.default.parallelism" can be changed on each SQL session to decrease empty files

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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