[HDFS-14616] Add the warn log when the volume available space isn't enough

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.7.2
• Fix Version/s: 3.3.0
• Component/s: hdfs
• Hadoop Flags: Reviewed
• Assignee: liying
• Reporter: liying
• Created: 28/Jun/19 02:26
• Updated: 02/Oct/19 17:15
• Resolved: 07/Aug/19 19:29

Description

In the hadoop2 version, there is no warning log that the disk is not available when using the disk. Therefore, the datanode log cannot be used to check if the disk is not available ata certain time or for other problems.