------+-----------------+-----+-----------+ | CURVEFS | version | size | key_value_pairs | EOF | check_sum | +---------+---------+------+-----------------+-----+-----------+ 向后兼容加载旧版持久化文件） size 8 键值对数量 key_value_pairs / 键值对（当 size 为 0 时，该字段为空） EOF 1 特殊标记常量 (0XFF)，表示内容已结束 check_sum 8 保存校验和 (根据前 5 个部分内容计算得出) key_value_pairs 字段 字节数 说明 key_length 4 key 的长度 key $key_length 保存编码后的

O_WRONLY, O_RDWR) should be used by the filesystem to check if the operation is permitted. If the -o default_permissions mount option is given, this check is already done by the kernel before calling open()

helmCurrent Status • Release 2 major version on CurveBS • v1.2 supporting QOS, Discard, data silent check • v1.3 some performance optimization • more details https://github.com/opencurve/curve/releases