[HDFS-16003] ProcessReport print invalidatedBlocks should judge debug level at first

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.3.0
• Fix Version/s: 3.3.1, 3.4.0
• Component/s: namanode
• Hadoop Flags: Reviewed
• Assignee: lei w
• Reporter: lei w
• Created: 29/Apr/21 07:15
• Updated: 10/May/21 11:49
• Resolved: 10/May/21 11:49

Description

In BlockManager#processReport( ) method, we will print invalidated blocks if log level is debug。We always traverse this invalidatedBlocks list without considering the log level。I suggest to give priority to the log level before printing, which can save the time of traversal if log  level is info.