[HDFS-16879] EC : Fsck -blockId shows number of redundant internal block replicas for EC Blocks

• Type: Improvement
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 3.4.0
• Fix Version/s: 3.4.0
• Component/s: erasure-coding
• Labels: pull-request-available
• Target Version/s: 3.4.0
• Hadoop Flags: Reviewed
• Assignee: Haiyang Hu
• Reporter: Haiyang Hu
• Created: 30/Dec/22 05:24
• Updated: 28/Jan/24 07:29
• Resolved: 04/Jan/23 03:39

Description

For the block of the ec file run hdfs fsck -blockId xxx can add shows number of redundant internal block replicas.

for example: the current blockgroup has 10 live replicas, and it will show there are 9 live replicas.
actually, there is a live replica that should be in the redundant state, can add shows "No. of redundant Replica: 1"

hdfs fsck -blockId blk_-xxx

Block Id: blk_-xxx
Block belongs to: /ec/file1
No. of Expected Replica: 9
No. of live Replica: 9
No. of excess Replica: 0
No. of stale Replica: 0
No. of decommissioned Replica: 0
No. of decommissioning Replica: 0
No. of corrupted Replica: 0
Block replica on datanode/rack: ip-xxx1 is HEALTHY
Block replica on datanode/rack: ip-xxx2 is HEALTHY
Block replica on datanode/rack: ip-xxx3 is HEALTHY
Block replica on datanode/rack: ip-xxx4 is HEALTHY
Block replica on datanode/rack: ip-xxx5 is HEALTHY
Block replica on datanode/rack: ip-xxx6 is HEALTHY
Block replica on datanode/rack: ip-xxx7 is HEALTHY
Block replica on datanode/rack: ip-xxx8 is HEALTHY
Block replica on datanode/rack: ip-xxx9 is HEALTHY
Block replica on datanode/rack: ip-xxx10 is HEALTHY

Issue Links

• links to: GitHub Pull Request #5264