[jira] [Created] (HDFS-12518) Re-encryption should handle task cancellation and progress better

["Xiao Chen (JIRA)" <ji...@apache.org>]

Xiao Chen created HDFS-12518:
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             Summary: Re-encryption should handle task cancellation and progress better
                 Key: HDFS-12518
                 URL: https://issues.apache.org/jira/browse/HDFS-12518
             Project: Hadoop HDFS
          Issue Type: Bug
          Components: encryption
    Affects Versions: 3.0.0-beta1
            Reporter: Xiao Chen
            Assignee: Xiao Chen


Re-encryption should handle task cancellation and progress tracking better in general.

In a recent internal report, a canceled re-encryption could lead to the progress of the zone being 'Processing' forever. Sending a new cancel command would make it complete, but new re-encryptions for the same zone wouldn't work because the canceled future is not removed.

This jira proposes to fix that, and enhance the currently handling so new command would start from a clean state.



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