You are viewing a plain text version of this content. The canonical link for it is here.

Posted to issues@spark.apache.org by "Eric Liang (JIRA)" <ji...@apache.org> on 2016/12/01 23:30:58 UTC

[jira] [Created] (SPARK-18679) Regression in file listing performance

Eric Liang created SPARK-18679:
----------------------------------

             Summary: Regression in file listing performance
                 Key: SPARK-18679
                 URL: https://issues.apache.org/jira/browse/SPARK-18679
             Project: Spark
          Issue Type: Bug
            Reporter: Eric Liang
            Priority: Blocker


In Spark 2.1 ListingFileCatalog was significantly refactored (and renamed to InMemoryFileIndex).

It seems there is a performance regression here where we no longer performance listing in parallel for the non-root directory. This forces file listing to be completely serial when resolving datasource tables that are not backed by an external catalog.



--
This message was sent by Atlassian JIRA
(v6.3.4#6332)

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