[jira] [Resolved] (SPARK-17661) Consolidate various listLeafFiles implementations

["Reynold Xin (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/SPARK-17661?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Reynold Xin resolved SPARK-17661.
---------------------------------
       Resolution: Fixed
         Assignee: Peter Lee
    Fix Version/s: 2.1.0

> Consolidate various listLeafFiles implementations
> -------------------------------------------------
>
>                 Key: SPARK-17661
>                 URL: https://issues.apache.org/jira/browse/SPARK-17661
>             Project: Spark
>          Issue Type: Improvement
>          Components: SQL
>            Reporter: Peter Lee
>            Assignee: Peter Lee
>             Fix For: 2.1.0
>
>
> There are 4 listLeafFiles-related functions in Spark:
> - ListingFileCatalog.listLeafFiles (which calls HadoopFsRelation.listLeafFilesInParallel if the number of paths passed in is greater than a threshold; if it is lower, then it has its own serial version implemented)
> - HadoopFsRelation.listLeafFiles (called only by HadoopFsRelation.listLeafFilesInParallel)
> - HadoopFsRelation.listLeafFilesInParallel (called only by ListingFileCatalog.listLeafFiles)
> It is actually very confusing and error prone because there are effectively two distinct implementations for the serial version of listing leaf files. This code can be improved by:
> - Move all file listing code into ListingFileCatalog, since it is the only class that needs this.
> - Keep only one function for listing files in serial.



--
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