52results about How to "No business interruption" patented technology

The invention discloses a data migration method of a distributed database and a distributed database migration system. The method comprises the following steps of: inquiring a search library according to a user identification (ID) of an appointed user to obtain position information of the appointed user data, and setting a corresponding lock sign as valid; obtaining the appointed user data according to the obtained position information, and writing the appointed user data in a target sub-library; if the writing-in is successful, modifying the position information of the user data in the sub-library as the position information of the written-in target sub-library, and setting the lock signal corresponding to the user ID of the appointed user as invalid, wherein the user data is in the search library and corresponds to the appointed user ID; if the writing-in is failure, setting the lock sign corresponding to the user ID of the appointed user as invalid, and deleting the appointed user data written in the target sub-library. By adoption of the technical scheme of the invention, the availability and consistency of the user data in the migration process can be ensured and the user service cannot be interrupted.

The invention discloses a software upgrading method and device. The method includes the steps that when an active main control panel determines that software upgrading needs to be currently conducted on a line-card panel based on an upgrading sequence, a route corresponding to the line-card panel which is currently upgraded stops issuing to neighbor network equipment, and the neighbor network equipment transfers flux sent to the line-card panel which is currently upgraded to other line-card panels; when the active main control panel determines that no flux passes through the line-card panel which is currently upgraded, software upgrading is conducted on the line-card panel which is currently upgraded; after software upgrading is conducted on the line-card panel which is currently upgraded, the line-card panel which is currently upgraded is registered by a standby main control panel, the standby main control panel issues the route corresponding to the line-card panel which is currently upgraded again to the neighbor network equipment, and then the neighbor network equipment sends flux to the line-card panel which is currently upgraded. According to the embodiment of the software upgrading method and device, when soft upgrading is conducted on the line-card panel, the flux sent by the neighbor network equipment is triggered to transfer flux which is sent to the line-card panel to the other line-card panels, and therefore the transferred flux is prevented from being lost.

The invention provides a method and device for avoiding service interruption of a storage array in the upgrading process. In the method and the device, when the storage array needs to be upgraded, only software modules which need to be upgraded are upgraded; meanwhile, if upgrading fails due to the fact that failures occur in the upgrading process, the software modules can rapidly go back to the upgrade version which runs before upgrading through the method and the device, and therefore services can not be interrupted, and the normal work state can be recovered as soon as possible.

The invention provides a graceful restarting method and a graceful restarting device for a universal protocol process. The method comprises the following steps of: acquiring a keep-alive message of a protocol before the restarting of the protocol process; transmitting the keep-alive message of the protocol as an agent in a protocol process restarting process; and after the restarting of the protocol process is finished, retaking a keep-alive message transmission function over. By the method and the device, the interruption of a service can be avoided in the protocol process restarting process.

The invention relates to a method for preventing restart failure of a Linux system. According to the method, in a system startup stage, a root file system in a CFast card is copied, and the copied root file system is used for starting the system. Based on an existing storage medium of the system, a nonvolatile storage medium is additionally adopted for recording logs, so that the root file systemand log files of the system are recorded in different storage mediums. By adopting one or two methods, the writing chances of the system can be reduced through a virtual hard disk technology, the diskwriting damage probability is reduced, and the problem of influence on system startup and automatic recovery due to crash of the file system caused by power failure of the system is solved. By addingthe separate storage medium for recording the log files, the log recording capability of the system is improved, and any original program does not need to be modified. Even if an SSD is damaged, a business is not interrupted; and only the log nonvolatile storage performance is lost; and the logs are additionally stored in a memory.

The invention provides a distributed database upgrade method, an upgrade processing device and an upgrade control device, and belongs to the field of distributed databases. The distributed database upgrade method comprises that: the upgrade processing device receives and stores a first database script sent by the upgrade control device; the upgrade processing device creates a new data object according to the first database script, and updates the database of database equipment; and after the upgrade is successful, the upgrade processing device switches the database script from the second database script to the first database script, wherein the second database script is a database script for processing data access requests by the upgrade processing device before upgrading and during upgrading. Each embodiment of the invention can avoid service interruption in the distributed database upgrade process. The technical scheme of the invention can be widely applied in a distributed databasesystem.

The invention provides a method and a device of fast shift of a forwarding port, which belong to communication field. The method comprises the steps of receiving message need to be transferred and acquiring a target MAC address and VSI carried by the message; searching whether MAC table has an item matching with the target MAC address and VSI (If yes, searching items matching with the VSI in a VSI table); judging whether the check code in the MAC table is the same as that in the VSI table or not (If no, the message is broadcast in the VSI). Accordingly, the message can be transferred to relative users in time without interrupting the business.

The disclosed one-way primary control device with dual CPU comprises: a primary CPU, a secondary CPU, and a business process module controlled by last CPU to form a visual board with CPU. It also discloses a two-way primary device, which includes: a primary CPU of the main primary device connected wit the primary CPU of standby device, a secondary CPU of the main primary device connected wit the secondary CPU of standby device, and a business process module connected by the secondary CPU of primary device. This invention can prevent business interruption or system re-startup.

The invention discloses a solution for a cloud Web application to cope with virtual host layer attacks. The method comprises the steps: creating heterogeneous servers on the cloud, and achieving the data consistency of all the servers through shared storage; achieving the dynamic change of the server through a certain flow forwarding strategy, so as to present a dynamic change target which is difficult to observe and predict for an attacker, thereby increasing the attack difficulty and cost for unknown vulnerabilities and backdoors; and finally, through offline and self-healing of the attackedserver, achieving a purpose that the service is not interrupted. According to the invention, dynamic heterogeneous redundant server deployment is realized, and known and unknown attacks in the network can be solved.

The invention discloses a method and a device for processing fault of an EV-DO channel board, a channel board and a base station. The method comprises the following steps of: establishing a mapping relation between a chip channel of the EV-DO channel board and carrier frequency; monitoring the EV-DO channel board; and when detecting the fault of the EV-DO channel board, automatically removing unavailable carrier frequency caused by the fault of the EV-DO channel board to the chip channel of the available EV-DO channel board. The method, the device, the channel board and the base station adopt the mapping inside the channel and the automatic fault processing of the system, so after the fault is generated, the base station system can immediately perform self-processing on the fault and no-break of services is realized, and the reliability of the EV-DO channel board is improved and optimized.

The invention discloses a data packet transmitting method and a data packet transmitting device, and belongs to the field of internet communications. The data packet transmitting method includes that when a mobile terminal is switched from a home network to an outer area network, a first data packet which carries a first four-tuple and is sent by a first network address translation (NAT) server is received; the first four-tuple carried by the first data packet is modified as a second four-tuple, wherein the second four-tuple is a four-tuple which is carried by a data packet received by an application layer of the mobile terminal when the mobile terminal is in the home network; and then the first data packet is submitted to the application layer of the mobile terminal. The data packet transmitting device comprises the mobile terminal, a server and a control server. According to the data packet transmitting method and the data packet transmitting device, through the modification of the four-tuple which is carried by the data packet received by the mobile terminal, the four-tuple which is carried by the data packet received by the mobile terminal is enabled to remain the same before the switch and after the switch of the networks, and therefore the effect that when the mobile terminal is switched from the home network to the outer area network, services are not interrupted is guaranteed.

The application relates to the technical field of networks, and particularly relates to an acceleration capability adjustment method and device for adjusting an acceleration capability of a virtual machine, aiming to solve the problem of service interruption caused by allocating or releasing PCI acceleration equipment to the virtual machine. The method includes the following steps: determining a virtual machine to be adjusted and an acceleration capability requirement of the virtual machine to be adjusted, and reconfiguring the acceleration capability of at least one virtual acceleration equipment that has been allocated to the virtual machine to be adjusted according to the virtual machine to be adjusted and the acceleration capability requirement. Therefore, by adopting the method provided by the embodiment of the application, the number of the virtual acceleration equipment cannot be changed, the process of restarting the virtual machine to make the newly allocated acceleration capability or the released acceleration capability take effect is not required, and the service interruption cannot be caused.

The invention discloses a processing method of a serial number SN changeover failure in a user equipment UE switching process and a device. The method and the device are used for achieving that the business of the UE is not interrupted without disconnecting the link between the UE and a base station in case of an SN changeover failure during the UE switching process, thereby improving user experience. The method comprises steps that after a target base of the UE switching is switched to a target base station from a source base station, if it is determined that the changeover of SN information for carrying out current business communication with the UE fails, the target base station suspends the uplink and downlink business of the UE; the target base station acquires the SN information; and the target base station recovers to execute the uplink and downlink business of the UE according to the acquired SN information.

The invention provides a method and device for realizing terminal roaming switch. The method for realizing terminal roaming switch comprises the following steps: after receiving a unicast DHCP Request message sent by a terminal, judging whether the terminal is a roaming terminal according to a configured IP address pool; sending a DHCP NAK message to the roaming terminal, thereby enabling the roaming terminal to resend a request to a DHCP server to acquire the IP address. By using the method provided by the invention, the non-perceptive roaming switch of the terminal can be realized, and the service in the roaming process is uninterrupted.

The invention discloses a power source for supplying power to a double-mainboard computer. The structure of the power source consists of computer power supplies, two computer main boards, two field-effect transistors (Q1 and Q2), and power controllers. The computer power supplies are serially connected with the field-effect transistors (Q1 and Q2) and used for supplying power to the computer main boards; the communication or closing of each of filed-effect transistors is controlled by the power controller; the connection manner for each pin of the field-effect transistors (Q1 and Q2) is that source electrodes (S) of the Q1 and the Q2 are in parallel connection with the computer power supply, drain electrodes (D) are respectively connected with the main board 1 and the main board 2, and grid electrodes (G) are respectively connected with the power controller 1 and the power controller 2. Compared with the prior art, the art adopted by invention is characterized in that the double-mainboard system has higher performance, and two sets of systems can back up each other and mutually tolerate faults so that the important data can not be lost and the key business can not be interrupted even though one set of system is broken. Therefore, the double-mainboard system possesses the widespread market development prospect and the application value.