[HDFS-16197] Simplify getting NNStorage in FSNamesystem

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Fix Version/s: 3.4.0
• Component/s: namenode
• Labels: pull-request-available
• Assignee: JiangHua Zhu
• Reporter: JiangHua Zhu
• Created: 30/Aug/21 13:28
• Updated: 12/Sep/21 11:59
• Resolved: 12/Sep/21 11:59

Description

In FSNamesystem, there are many places where NNStorage needs to be used (according to preliminary statistics, there are 15 times), and these places are obtained using "getFSImage().getStorage()". We should try to use a simpler way.

Issue Links

• links to: GitHub Pull Request #3357