Details
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Improvement
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Status: Open
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Major
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Resolution: Unresolved
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2.6.0
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None
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None
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Reviewed
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Description
We do have hedged read which serves redundancy on read failures due to bad sector/patch in disk. We need to have similar feature for hdfs write. This feature may come with cost but its something to must have for use case which needs to guarantee write success regardless of degraded disk health. Defination of degraded disk is highly debatable but this is what I would define. "Degraded disk is the disk which fails to read and write intermittently"
Attachments
Issue Links
- relates to
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HDFS-5776 Support 'hedged' reads in DFSClient
- Closed