SammiChen created HDFS-12399:
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Summary: Handle erasure coding codec change after name node restart
Key: HDFS-12399
URL: https://issues.apache.org/jira/browse/HDFS-12399
Project: Hadoop HDFS
Issue Type: Improvement
Components: erasure-coding
Affects Versions: 3.0.0-alpha3
Reporter: SammiChen
Assignee: SammiChen
Handle corner cases like erasure coding codec change after name node restart,
cluster migration, cluster downgrade or upgrade.
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