[HDFS-2255] Improve NameNode metrics to distinguish between InodeDirectory and InodeFiles

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Incomplete
• Component/s: namenode
• Labels: newbie
• Assignee: Lohit Vijaya Renu
• Reporter: Lohit Vijaya Renu
• Created: 10/Jun/08 19:02
• Updated: 18/Jul/14 05:31
• Resolved: 18/Jul/14 05:31

Description

On trunk we have NameNode which records FilesCreated and FSDirectory records files_deleted. While NameNode records actual number of files created, FSDirectory records deletion of files and directories. These are not consistent. It would be good to re-factor these metrics so that we collect only Inode counts in FSDirectory and file creation/deletion in NameNode.

Issue Links

• is blocked by: HADOOP-3418 NameNode does not restart if parent directory of a "FileUnderConstruction" is deleted.
• is related to: HADOOP-3528 Metrics FilesCreated and files_deleted metrics do not match.