[HIVE-14271] FileSinkOperator should not rename files to final paths when S3 is the default destination

• Type: Sub-task
• Status: Reopened
• Priority: Major
• Resolution: Unresolved
• Assignee: Sergio Peña
• Reporter: Sergio Peña
• Created: 18/Jul/16 20:02
• Updated: 28/Sep/18 10:52

Description

FileSinkOperator does a rename of outPaths -> finalPaths when it finished writing all rows to a temporary path. The problem is that S3 does not support renaming.

Two options can be considered:

a. Use a copy operation instead. After FileSinkOperator writes all rows to outPaths, then the commit method will do a copy() call instead of move().

b. Write row by row directly to the S3 path (see HIVE-1620). This may add better performance calls, but we should take care of the cleanup part in case of writing errors.