[HDFS-5287] JN need not validate finalized log segments in newEpoch

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 2.1.1-beta
• Component/s: qjm
• Assignee: Unassigned
• Reporter: Todd Lipcon
• Created: 01/Oct/13 17:38
• Updated: 01/Oct/13 17:38

Description

In scanStorageForLatestEdits, the JN will call validateLog on the last log segment, regardless of whether it is finalized. If it's finalized, then this is a needless pass over the logs which can adversely affect failover time for a graceful failover.