[HDFS-15392] DistrbutedFileSystem#concat api can create large number of small blocks

• Type: Bug
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Assignee: Unassigned
• Reporter: Lokesh Jain
• Created: 05/Jun/20 12:31
• Updated: 09/Jul/20 10:24

Description

DistrbutedFileSystem#concat moves blocks from source to target. If the api is repeatedly used on small files it can create large number of small blocks in the target file. The Jira aims to optimize the api to avoid the issue of small blocks.