Stephen O'Donnell created HDDS-6259:
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Summary: EC: Small keys under 1 chunk should tolerate more than
parity nodes being unavailable
Key: HDDS-6259
URL: https://issues.apache.org/jira/browse/HDDS-6259
Project: Apache Ozone
Issue Type: Sub-task
Reporter: Stephen O'Donnell
With a small key less than 1 chunk, if the replica with index 1 is up, but more
than parity_num other replicas are not available, attempting to read the key
gives an insufficient datanode errors. Ideally, as index_1 is present, and the
keyLength is less than 1 chunk, the data should be readable.
A similar scenario for a key less than 1 chunk, is that indexes 1, 2, 3 and 4
OR 5 are down. As we know 2 and 3 are only zeros, and we have a single parity,
we should be able to reconstruct this, but again it fails with an insufficient
datanodes error.
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