Shuyan Zhang created HDFS-16958:
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Summary: Fix bug in processing EC excess redundancy
Key: HDFS-16958
URL: https://issues.apache.org/jira/browse/HDFS-16958
Project: Hadoop HDFS
Issue Type: Bug
Reporter: Shuyan Zhang
Assignee: Shuyan Zhang
When processing excess redundancy, the number of internal blocks is computed by
traversing `nonExcess`. This way is not accurate, because `nonExcess` excludes
replicas in abnormal states, such as corrupt ones, or maintenance ones.
`numOfTarget` may be smaller than the actual value, which will result in
inaccurate generated `excessTypes`.
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