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niksis02
729ced91e9
`lockObjectPublish` picked the process-local slot by the key's shard alone, while the shared lock file is per bucket and shard. As a result, writes to the same key name in different buckets waited on each other even though their lock files never conflict. The slot is now chosen from the bucket hash and the shard (`bucketHash[0] ^ shard`). It still depends only on the lock file, never on the full key, so all requests for one lock file keep sharing a slot, which fcntl locks need because they don't exclude within a process.