[HDFS-3611] NameNode prints unnecessary WARNs about edit log normally skipping a few bytes

• Type: Bug
• Status: Closed
• Priority: Trivial
• Resolution: Fixed
• Affects Version/s: 2.0.0-alpha
• Fix Version/s: 2.0.2-alpha
• Component/s: namenode
• Labels: newbie
• Hadoop Flags: Reviewed
• Assignee: Colin McCabe
• Reporter: Harsh J
• Created: 08/Jul/12 14:33
• Updated: 11/Oct/12 17:46
• Resolved: 11/Jul/12 03:38

Description

The NameNode currently warns these form of lines at every startup, even if there's no trouble really. For instance, the below is from a NN startup that was only just freshly formatted.

12/07/08 20:00:22 WARN namenode.EditLogInputStream: skipping 1048563 bytes at the end of edit log  '/Users/harshchouraria/Work/installs/temp-space/tmp-default/dfs-cdh4/data/current/edits_0000000000000000003-0000000000000000003': reached txid 3 out of 3

If this skipping is not really a cause for warning, we should not log it at a WARN level but at an INFO or even DEBUG one. Avoids users getting unnecessarily concerned.