[HDFS-15033] Support to save replica cached files to other place and make expired time configurable

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 3.3.0
• Component/s: datanode
• Hadoop Flags: Reviewed
• Assignee: Yang Yun
• Reporter: Yang Yun
• Created: 05/Dec/19 10:20
• Updated: 17/Apr/20 08:59
• Resolved: 29/Feb/20 04:37

Description

For slow volume with many replicas,  add an option to save the replica files to high-speed disk and speed up the saving.
Also add a option to change the expire time of the replica file.

Issue Links

• is a child of: HDFS-14627 Improvements to make slow archive storage works on HDFS