[ https://issues.apache.org/jira/browse/SPARK-16188?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Michael Armbrust closed SPARK-16188. ------------------------------------ Resolution: Not A Bug This is by design and changes would likely be too disruptive. The correct solution is to use coalesce as suggested earlier. > Spark sql create a lot of small files > ------------------------------------- > > Key: SPARK-16188 > URL: https://issues.apache.org/jira/browse/SPARK-16188 > Project: Spark > Issue Type: Improvement > Components: SQL > Affects Versions: 1.6.0 > Environment: spark 1.6.1 > Reporter: cen yuhai > > I find that spark sql will create files as many as partition size. When the > results are small, there will be too many small files and most of them are > empty. > Hive have a function to detect the avg of file size. If avg file size is > smaller than "hive.merge.smallfiles.avgsize", hive will add a job to merge > files. -- This message was sent by Atlassian JIRA (v6.3.4#6332) --------------------------------------------------------------------- To unsubscribe, e-mail: issues-unsubscr...@spark.apache.org For additional commands, e-mail: issues-h...@spark.apache.org