Siyao Meng created HDDS-9291:
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Summary: Deny block read requests when block is marked as deleted
on Datanodes
Key: HDDS-9291
URL: https://issues.apache.org/jira/browse/HDDS-9291
Project: Apache Ozone
Issue Type: Task
Reporter: Siyao Meng
Inspired by HDDS-9146 -- a sneaky data loss issue where the symptom (data loss)
doesn't appear until the container is closed, we might want to add a safety on
DNs so that as soon as a block is marked as deleted on a DN, that DN should
refuse to serve the block right away, and throw an exception back to the client
(stating the block is marked deleted on this Ozone Datanode).
This will help us catch data loss issues similar to HDDS-9146 much sooner in
UTs and integration tests.
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