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Chris LuandClaude Opus 5.5
5cf053c32e
* operation: read a manifest chunk from the next replica when one fails ChunkedFileReader read each chunk from one random location and returned the first error, so a chunk whose cached replica went down failed the whole file although another replica had it. Try the chunk's locations in turn (local-data replicas first) and resume each attempt at the byte the previous one reached. A failed write to the caller still ends the read. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * operation: drop a chunk volume's cached locations after a failed read A chunk read that failed on a replica left that replica in the 10-minute location cache, so later reads kept trying it first. Drop the volume's cached locations after a failure, and when every cached replica has failed, ask the master once more and try the locations it now lists. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * operation: don't continue a partly sent chunk on another replica A volume server streams a large needle before it has verified the checksum and aborts the response on a mismatch, so bytes that already reached the reader may be corrupt. Continuing such a chunk on another replica would hand back a mix of bad and good bytes as a complete read. Move to the next replica only while nothing of the chunk has been written; a mid-body failure still fails the read, and the dropped cache entry lets the next read pick a live replica. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> * operation: treat a short chunk body as a failed replica read A replica that ends a chunk's body cleanly before the chunk's size made the read look successful, so the next replica was never tried and the following chunks landed at the wrong offsets. Read exactly the chunk's remaining length and report a short body as an error. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com> --------- Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>