[HDFS-14770] Erasure Coding: reconstructed internal block is error

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Component/s: datanode, erasure-coding
• Assignee: HuangTao
• Reporter: HuangTao
• Created: 23/Aug/19 09:45
• Updated: 27/Aug/19 12:19
• Resolved: 27/Aug/19 12:18

Description

We found some missing EC internal blocks were reconstructed incorrectly.

The incorrect block(md5sum)

73ceb92c4223ce00ff88802fdafd19a3  /data5/dfs/current/BP-XXXXXX/current/finalized/subdir6/subdir7/blk_-9223372036570159327

It should be

137e1c8483126291c2e84fc0115cfcc6  /data3/dfs/current/BP-XXXXXX/current/finalized/subdir7/subdir6/blk_-9223372036401277247

Issue Links

• links to: GitHub Pull Request #1355