Shashikant Banerjee created HDDS-883:
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Summary: Chunk writes should validate the checksum before
overwriting the existing chunk file
Key: HDDS-883
URL: https://issues.apache.org/jira/browse/HDDS-883
Project: Hadoop Distributed Data Store
Issue Type: Improvement
Components: Ozone Datanode
Affects Versions: 0.4.0
Reporter: Shashikant Banerjee
Assignee: Shashikant Banerjee
Fix For: 0.4.0
When writeChunk request arrives via Ratis, it may happen that the tmp chunk
file already exist because of ratis retry on stateMachine timeout during
writeStateMachineData phase. In such cases, we can just validate the length and
checksum if present before blindly overwriting it and return.
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