[HDFS-2971] some improvements to the manual NN metadata recovery tools

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Won't Fix
• Affects Version/s: 1.1.0
• Component/s: libhdfs
• Assignee: Colin McCabe
• Reporter: Colin McCabe
• Created: 17/Feb/12 23:23
• Updated: 23/Feb/12 22:10
• Resolved: 23/Feb/12 19:32

Description

Some improvements to the manual NN metadata recovery tools.

Specifically, we want the Offline Edit Viewer (oev) tool to prints out the highest generation stamp that was encountered when processing the edit log.

We also want OEV to look for large gaps in the generation stamp, as these can indicate corruption. The minimum gap to look for should be configurable with -G or --genStampGap.