Walter Su created HDFS-8672:
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Summary: Erasure Coding: Add EC-related Metrics on NN (seperate
striped blocks count from UnderReplicatedBlocks count)
Key: HDFS-8672
URL: https://issues.apache.org/jira/browse/HDFS-8672
Project: Hadoop HDFS
Issue Type: Sub-task
Reporter: Walter Su
Assignee: Walter Su
Priority: Minor
1. {{MissingBlocks}} metric is updated in HDFS-8461 so it includes striped
blocks.
2. {{CorruptBlocks}} metric is updated in HDFS-8619 so it includes striped
blocks.
3. {{UnderReplicatedBlocks}} and {{PendingReplicationBlocks}} includes striped
blocks (HDFS-7912).
This jira aims to seperate striped blocks count from {{UnderReplicatedBlocks}}
count.
EC file recovery need coding. It's more expensive than block duplication.
It's necessary to seperate striped blocks count from UnderReplicatedBlocks
count. So user can know what's going on.
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