Abstract: A data disaster tolerance method, device and system is disclosed. Each node in a logic unit including a single master node and two or more slave nodes is monitored. If the master node is abnormal, the server acquires log information of the plurality of two or more slave nodes separately, the log information of the two or more slave nodes includes respective time points of data synchronization between the slave nodes and the master node A respective slave node of the two or more slave nodes having the time point of data synchronization closest to a current time is selected as a target node. A master-slave relationship in the logic unit is updated to change a role of the target node to that of the master node.

Abstract: A data disaster tolerance method, device and system is disclosed. Each node in a logic unit including a single master node and two or more slave nodes is monitored. If the master node is abnormal, the server acquires log information of the plurality of two or more slave nodes separately, the log information of the two or more slave nodes includes respective time points of data synchronization between the slave nodes and the master node A respective slave node of the two or more slave nodes having the time point of data synchronization closest to a current time is selected as a target node. A master-slave relationship in the logic unit is updated to change a role of the target node to that of the master node.

Abstract: Various embodiments of the present disclosure describe a method, apparatus and system for logging in a Unix-like virtual container. The method include establishing a corresponding relationship between a Unix-like virtual container and a port on a host running the Unix-like virtual container; establishing a transparent pipe between the Unix-like virtual container and the host port based on the corresponding relationship, establishing a first connection between the Unix-like virtual container and the host port based on the transparent pipe; receiving a script command through the host port, and sending the script command to the Unix-like virtual container according to the first connection. Employing embodiments of the present disclosure, the Unix-like virtual container can be logged in through the connection between the host port and the Unix-like virtual container, the information security of the Unix-like virtual container can be ensured, and the access efficiency can be improved through asynchronous access.

Abstract: Various embodiments of the present disclosure describe a method, apparatus and system for logging in a Unix-like virtual container. The method include establishing a corresponding relationship between a Unix-like virtual container and a port on a host running the Unix-like virtual container; establishing a transparent pipe between the Unix-like virtual container and the host port based on the corresponding relationship, establishing a first connection between the Unix-like virtual container and the host port based on the transparent pipe; receiving a script command through the host port, and sending the script command to the Unix-like virtual container according to the first connection. Employing embodiments of the present disclosure, the Unix-like virtual container can be logged in through the connection between the host port and the Unix-like virtual container, the information security of the Unix-like virtual container can be ensured, and the access efficiency can be improved through asynchronous access.