Manoj Govindassamy created HDFS-11986:
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Summary: Dfsadmin should report erasure coding related information
separately
Key: HDFS-11986
URL: https://issues.apache.org/jira/browse/HDFS-11986
Project: Hadoop HDFS
Issue Type: Improvement
Components: erasure-coding, hdfs
Affects Versions: 3.0.0-alpha1
Reporter: Manoj Govindassamy
Assignee: Manoj Govindassamy
dfsadmin -report command currently reports only the aggregated block stats like
below.
{noformat}
# hdfs dfsadmin -report
Configured Capacity: 1498775814144 (1.36 TB)
Present Capacity: 931852427264 (867.86 GB)
DFS Remaining: 931805765632 (867.81 GB)
DFS Used: 46661632 (44.50 MB)
DFS Used%: 0.01%
Under replicated blocks: 0
Blocks with corrupt replicas: 0
Missing blocks: 0
Missing blocks (with replication factor 1): 0
Pending deletion blocks: 0
{noformat}
Just like fsck, the proposal is to make dfsadmin command to report erasure
coding blockgroups stats separately, like below
{noformat}
# hdfs dfsadmin -report
Configured Capacity: 1498775814144 (1.36 TB)
Present Capacity: 931852427264 (867.86 GB)
DFS Remaining: 931805765632 (867.81 GB)
DFS Used: 46661632 (44.50 MB)
DFS Used%: 0.01%
Replicated Blocks:
Under replicated blocks: 0
Blocks with corrupt replicas: 0
Missing blocks: 0
Missing blocks (with replication factor 1): 0
Pending deletion blocks: 0
Erasure Coded Block Groups:
Under ec block groups: 0
EC block groups with corrupt internal blocks: 0
Missing ec block groups: 0
Pending deletion ec block groups: 0
{noformat}
Erasure coding specific details needed for this enhancements are already made
available as part of HDFS-10999.
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