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https://issues.apache.org/jira/browse/HDFS-12399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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SammiChen updated HDFS-12399:
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Description: Handle corner case when erasure coding codec change after name
node restart, cluster migration, cluster downgrade or upgrade. (was: Handle
corner cases like erasure coding codec change after name node restart, cluster
migration, cluster downgrade or upgrade.)
> 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
> Labels: hdfs-ec-3.0-nice-to-have
>
> Handle corner case when erasure coding codec change after name node restart,
> cluster migration, cluster downgrade or upgrade.
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