The present disclosure provides routing table synchronization methods, apparatuses, and systems. One exemplary method comprises: acquiring modified routing table data if it is detected that a routing table in a default first data management group is modified; and synchronizing the modified routing table data to at least one non-default second data management groups to update a routing table in the at least one non-default second data management group. The first data management group and the at least one second data management group are deployed in a distributed file system. The technical solutions provided in present disclosure can address the technical problem that when any routing table in a distributed file system is modified, routing tables in the system may not be synchronized because routing tables in the distributed file system are static tables.