Sergey Soldatov created HDDS-15421:
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Summary: BlockOutputStream.writeOnRetry() can commit a partially
filled retry buffer as a normal chunk.
Key: HDDS-15421
URL: https://issues.apache.org/jira/browse/HDDS-15421
Project: Apache Ozone
Issue Type: Bug
Components: Ozone Client
Affects Versions: 2.1.0
Reporter: Sergey Soldatov
Assignee: Sergey Soldatov
When a RATIS pipeline failure is detected asynchronously, the client may
already have written additional data into the next ChunkBuffer. KeyOutputStream
computes retry length from all allocated buffers, including a partially filled
current buffer. During retry, BlockOutputStream.writeOnRetry() sends each
allocated buffer as WriteChunk + PutBlock, so the partial buffer is committed
immediately.
If later writes continue in the same block, that partial chunk becomes a
non-last chunk. Server-side read/checksum code assumes non-last chunks have the
configured chunk size, so reads can fail with a bytesPerChunk
assertion/checksum error.
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