[HDFS-15830] Support to make dfs.image.parallel.load reconfigurable

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.3.1, 3.4.0
• Component/s: namenode
• Labels: pull-request-available
• Assignee: Hui Fei
• Reporter: Hui Fei
• Created: 09/Feb/21 09:05
• Updated: 19/Feb/21 01:31
• Resolved: 19/Feb/21 01:29

Description

After HDFS-14617, loading fsimage improve a lot.

If something unexpected happens, we have to load old image to restart namenode.

So advise  that we make dfs.image.parallel.load reconfigurable, then we can save new fsimage.

Issue Links

• is related to: HDFS-14617 Improve fsimage load time by writing sub-sections to the fsimage index
• links to: GitHub Pull Request #2694