[HDFS-5783] Compute the digest before loading FSImage

• Type: Sub-task
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: HDFS-5698 (FSImage in protobuf)
• Fix Version/s: HDFS-5698 (FSImage in protobuf)
• Target Version/s: HDFS-5698 (FSImage in protobuf)
• Hadoop Flags: Reviewed
• Assignee: Haohui Mai
• Reporter: Haohui Mai
• Created: 16/Jan/14 00:46
• Updated: 18/Jan/14 00:48
• Resolved: 18/Jan/14 00:48

Description

When loading the fsimage, the current code computes its MD5 digest on-the-fly. It does not work when the code does not read all the sections in strictly sequential order.

This jira proposes to compute the MD5 digest before loading fsimage.