Metadata management has always been the focus of distributed file systems research. Metadata replication exhibits a comparative advantage in maintaining locality and balancing system load. However, according to the requirements of POSIX semantics, existing systems use strict consistency to guarantee the consistency and atomicity of metadata operations. The strict consistency impedes I/O, resulting in a performance bottleneck.Metadata management has always been the focus of distributed file systems research. Metadata replication exhibits a comparative advantage in maintaining locality and balancing system load. However, according to the requirements of POSIX semantics, existing systems use strict consistency to guarantee the consistency and atomicity of metadata operations. The strict consistency impedes I/O, resulting in a performance bottleneck.[#item_full_content]