Arafat Khan created HDDS-11267:
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Summary: Ozone Datanode Reporting Negative Container values for
UsedBytes and BlockCount parameters
Key: HDDS-11267
URL: https://issues.apache.org/jira/browse/HDDS-11267
Project: Apache Ozone
Issue Type: Bug
Components: Ozone Datanode, Ozone Recon
Reporter: Arafat Khan
The issue involves datanodes in Ozone reporting negative container sizes for
the {{usedBytes}} and block count metrics. This occurs when the Ozone Manager
sends duplicate block deletion requests to the Storage Container Manager. Due
to a delay in processing the original request, OM may mistakenly send a
duplicate request. The datanode, upon receiving the duplicate request, attempts
to delete blocks that have already been deleted, but still updates the metrics,
leading to negative values. The proposed solution is to modify the deletion
process in the datanode to track and ignore duplicate block deletion requests,
ensuring metrics are not updated incorrectly.
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