40results about How to "Realize online migration" patented technology

The invention discloses a data migration method and device used for a database. One specific implementation way of the method comprises the following steps: establishing the mirror image of a source database, migrating total-amount data in the mirror image into a target database, and detecting incremental data in the source database; migrating the detected incremental data to the target database; and when all the incremental data in the source database is migrated to the target database, switching the read and write operation of the database to the target database from the source database. The implementation way realizes on-line data migration between the databases.

The invention provides a data migration method and a data migration device. The method comprises the steps of obtaining configuration information, wherein the configuration information contains a source database address and a target database address; connecting to a source database according to the source database address, connecting to a target database according to the target database address to build a migration channel corresponding to the configuration information; transmitting a data migration request to the source database through the migration channel; obtaining total data transmitted by the source database in response to the data migration request through the migration channel and transmitting the total data to the corresponding target database through the migration channel; extracting incremental data of the source database through the migration channel and introducing the incremental data into the corresponding target database through the migration channel according to the time sequence of data generation. According to the method, the convenience of migration operation of the data can be improved.

The invention provides a virtual machine on-line transfer method across virtualization data centers. The method includes that step 1, a plurality of virtualization data centers are deployed on a wide area network (WAN), and each virtual machine mirror file is divided into a template and user private data files, step 2, the virtualization data centers are connected through a virtual private network (VPN) of a two-tier bridge pattern, step 3, dirty blocks written into a disk every time are monitored in a virtual machine input / output (I / O) drive course on a source node, a transfer thread is created for the drive course, and the transfer thread pre-transfers the user private data files and transfers monitoring records of the dirty blocks, step 4, a transfer course of a virtual machine on the source node controls the pre-transfer and the transfer of the monitoring record, and step 5, the execution sequence of a destination node recovery course of the virtual machine is changed, a recovery thread is created for the recovery course, and the recovery thread receives information about the pre-transfer and the transfer of the monitoring records and writes the information into a storage node. The virtual machine on-line transfer method across the virtualization data centers can achieve dynamic mapping of virtual machines and resources among the plurality of virtualization data centers.

The invention provides an on-line file moving method, an on-line file moving device and an on-line file moving system. The method comprises the steps of mounting a source device to a target device through a network file sharing protocol, wherein the source device and the target device are NSA (Network Attached Storage) devices; establishing image files of files of the source device on the target device, wherein the image files are empty files initially; transmitting data in the files of the source device to the target device through the network file sharing protocol; and processing the access request of the user by the target device in the data moving process. The technical scheme of the on-line file moving method is that the on-line file moving can be achieved between two NSA devices so as to be suitable for the on-line file moving among NSA devices manufactured by different standards and manufacturers.

The invention provides an online migration system implementation and optimization method for a Docker container. The online migration system realization and optimization method at least comprises thefollowing steps: determining an integrated collection mechanism of mirror image layer data based on different container file systems and parent-child relationships between mirror image layers thereofso as to complete integrated collection of the mirror image layer data; determining the latest version of the mirror image layer data based on a Diff command between the parent mirror image layer andthe child mirror image layer, and realizing transmission of the latest version of the mirror image layer data between the source machine container and the target machine container to complete iteration synchronization of the mirror image layer data; realizing iterative synchronization of memory in accordance with the implementation of the Pre-Copy mechanism; and executing container recovery operation of the target machine container under the condition that the iteration synchronization of the mirror image layer data and the memory is completed.

The invention provides a method for on-line migration of a database, The source database reads all the data blocks and all the changed data blocks in the source database on line, synchronizes them tothe target database, writes the data blocks to the local data file by the target database, and adds, deletes and modifies the data blocks locally by the target database, so as to achieve the consistent state with the source database. If across operate system platforms, Migration of file types, A target library-side database complete that conversion and writes the data block into a target databasedata file, Moreover, the invention also provides a device for online migration of a database, which not only can realize online migration of the database, but also can realize online migration of thedatabase across operating system platforms and across data file types, thereby reducing service interruption time, improving migration efficiency and lowering technical requirements for database migration engineers.

The invention relates to an on-line migration method of a virtual machine in a wide area network under future network NDN (Named Data Network). The method comprises the following steps: a migration data sending side writes migration data of the virtual machine into a standard input stream, and packages the data into a data message to be issued in a content buffer area; a migration data receiving side requests the migration data sending side for data, the migration data sending side inquire the data from the content buffer area and sends the data to the migration data receiving side; and the migration data receiving side receives the data message, analyzes the data and writes the data into a standard output stream, and the virtual machine reads the data from the standard output stream and is loaded. Compared with the prior art, the on-line migration method of the virtual machine in the wide area network under future network NDN realizes on-line migration of the virtual machine in the wide area network under the NDN network, enables applications on the virtual machine to be kept continuous in the migration process of the virtual machine, realizes seamless migration of the virtual machine, ensures the network to be unimpeded through a dynamic self-adaptive mechanism after the migration is completed, and is of great significance to cloud computing and load balance of the future network NDN.

The invention discloses a storage online migration method and device of a virtual machine. The storage online migration method of the virtual machine comprises the steps of establishing an external snapshot for a storage file of the virtual machine, wherein the virtual machine reads data from the exterior and writes data in the external snapshot after the external snapshot is established; copying the storage file from a source storage pool to a target storage pool; assigning a basic mirror image file of the external snapshot as a storage file copied to the target storage pool, and block-committing the storage data in the external snapshot to the storage file in the target storage pool; and enabling the virtual machine to read data from the storage file in the target storage pool and writing data in the storage file. According to the storage online migration method and device of the virtual machine, an internal snapshot in the storage file can be copied into the target storage pool, and the internal snapshot cannot be lost.

The invention discloses an LV mirror image-based method for realizing data backup, recovery and migration in a linux system, in the linux system, through an LVM mirror image technology, data in one PV are backed up into an LVM mirror image file and are further recovered and migrated into the other PV, a new backup is realized or the original PV is replaced. Through the LVM mirror image technology, online migration of the data among different PVs is realized, so the management of the data on a linux platform is more convenient, more flexible and safer.

The invention discloses a mysql online migration system and method based on MHA. The system comprises an MHA management node, a mysql master slave node and a new slave node, wherein the MHA management node comprises an MHA management module, an online switching module and an MHA configuration updating module; the mysql master slave node comprises an online data setting module and an offline slave database module; the new slave node module comprises a slave database setting module. The mysql online migration system and method has the advantages that the method is simple in operation steps, mysql database node migration can be completed by several simple commands, and especially the migration of the mysql master database node is convenient and simple; high stability is achieved, errors can hardly occur, and migration quality is increased; data consistency is well guaranteed, and data inconsistency is avoided; high automation level is achieved, and work efficiency is increased; due to the fact that operation is simple, multiple mysql master slave clusters can be operated at the same time, and the online migration of multiple mysql database nodes is achieved.

The invention provides a Hbase data online migration method and device. The method includes the steps that from a first moment, data of a first cluster is mirrored to a second cluster; at a second moment after mirroring is ended, bilateral synchronization of the first cluster and the second cluster is started, and updated data of the first cluster and updated data of the second cluster after the second moment are synchronized between the first cluster and the second cluster; updated data of the first cluster in the time period from the first moment to the second moment is copied to the secondcluster. Under the condition that write access of an original cluster is not stopped, data online migration of uninterrupted services is achieved.

The invention relates to the field of network technology and particularly relates to a network switching method, device and system for machine room migration, and aims to solve the problem of service interruption during machine room migration in the prior art so as to enable machine room migration to be quick and convenient. The method comprises the following steps: putting equipment of a main machine room A and a standby machine room B into a space with the same IP address, and configuring exchange virtual interface of the network equipment in the standby machine room B to be the same as the exchange virtual interface of network equipment in the main machine room A; virtually building a server of the machine room A in a server of the standby machine room B, and building connection between the network equipment of the standby machine room B and the virtual server; stopping the exchange virtual interface of the network equipment of the main machine room A, and starting the exchange virtual interface of the network equipment of the standby machine room B. Therefore, switching from the main machine room A to the standby machine room B is realized.

The invention discloses an on-line migration method of a virtual machine. The method comprises the steps of pretreating a source server and a target server before migration; completely copying current stored data of the virtual machine to the target server; when a change scale of the current stored data of the virtual machine and stored data in the last circulation reaches to the preset standard, copying a current dirty page into the target server until the number of the current dirty pages of the virtual machine is smaller than a preset value; stopping the source server, and copying a dirty page of the last circulation and a current working state of the source server into the target server; controlling the virtual machine to migrate to the target server from the source server. The stop time required by the method provided by the invention is the time consumed for copying the dirty page in the last circulation, so that compared with the prior art, at the earlier stage of stop, the virtual machine cannot be influenced to provide service to a user through the method, and the stop time is greatly reduced. In addition, the invention also provides an on-line migration device of the virtual machine with the same effects.

The invention provides a storage device data online migration method and system, a terminal and a storage medium. The storage device data online migration method comprises the steps: backing up back-end storage data of a to-be-migrated operating system; unbinding the volume of the to-be-migrated operating system from an original storage device by setting an FC port of the original storage device,and mapping the volume of the to-be-migrated operating system to a target storage device; mapping the volume migrated to the target storage device to an operating system of the target storage device by scanning the external storage; transferring the multi-path software of the operating system to be migrated and configuring the operating system of the target storage device; and migrating the backupdata from the original storage device to the target storage device. According to the method, online migration of the data between the storage devices can be realized, downtime in the data migration process can be avoided, and data loss is avoided.

The invention provides a storage volume online migration method and device and a storage volume online migration system. The method comprises the steps of receiving a migration instruction; migratingdata of source volume to target volume according to a migration instruction; under the condition that a business writing instruction is received in the migration process, synchronously writing the business data into the source volume and the target volume; and under the condition that all data of the source volume is migrated to the target volume, converting the execution object written with the business instruction from the source volume to the target volume, and deleting the source volume. According to the method, in the data migration process, the business data is synchronously written intothe source volume and the target volume, so that the execution of the business instruction is not interrupted, the online migration of the storage volume is realized, and the problem that the onlinemigration of the storage volume cannot be realized in the prior art is solved.

The invention discloses an online migration method, an online migration system and a device of a virtual machine. The target carrier wave is selected and switched during online migration of the virtual machine on a source physical server, the user of the virtual machine is transferred to the switched target carrier wave, and the idle virtual machine is transferred to the target physical server. The user in the internal storage is already transferred to the other carrier waves before the virtual machine is migrated on line, so that the internal storage of the virtual machine will not change during the online migration process, the situation that the reproduction process of the internal storage of the virtual machine is unable to restrain can be avoided and the online migration of the virtual machine can be successfully achieved.

The invention provides a virtual machine on-line transfer method across virtualization data centers. The method includes that step 1, a plurality of virtualization data centers are deployed on a wide area network (WAN), and each virtual machine mirror file is divided into a template and user private data files, step 2, the virtualization data centers are connected through a virtual private network (VPN) of a two-tier bridge pattern, step 3, dirty blocks written into a disk every time are monitored in a virtual machine input / output (I / O) drive course on a source node, a transfer thread is created for the drive course, and the transfer thread pre-transfers the user private data files and transfers monitoring records of the dirty blocks, step 4, a transfer course of a virtual machine on the source node controls the pre-transfer and the transfer of the monitoring record, and step 5, the execution sequence of a destination node recovery course of the virtual machine is changed, a recovery thread is created for the recovery course, and the recovery thread receives information about the pre-transfer and the transfer of the monitoring records and writes the information into a storage node. The virtual machine on-line transfer method across the virtualization data centers can achieve dynamic mapping of virtual machines and resources among the plurality of virtualization data centers.

The invention relates to a method for realizing online migration based on a bidirectional pipeline manner under NDN (Named Data Networking). The method comprises the following steps: (1) a name space design step in the NDN: three name spaces used for naming a data packet are determined; (2) a bidirectional pipeline communication manner: a bidirectional pipeline communication data packet passes between a data requiring party and a data sending party; the bidirectional pipeline communication manner comprises an inverted sequence and packet dropout processing: a caching region for preserving Data which reaches in advance due to the inverted sequence or is produced in advance is set, and the Data is obtained again by adopting a retransmission timeout mechanism; when the time is out for multiple times, a request is done again by adopting a sub-package manner; and (3) a performance testing step. Compared with the prior art, the online migration of a virtual machine of a local area network and a wide area network under an NDN network is realized, so that the application on the virtual machine keeps continuous in the migration process of the virtual machine, and the seamless migration of the virtual machine is realized; by the aid of a dynamic self-adapted mechanism, the network is smooth after the migration is finished.

The invention relates to the technical field of cloud technologies, and discloses a virtual machine data migration method and device, computer equipment and a storage medium, and the method comprisesthe steps: virtualizing remote storage equipment into NVMe equipment after a virtual machine migration message is detected, transmitting the NVMe equipment to a virtual machine, creating the virtual equipment through a virtual intermediate layer, then, after it is detected that the NVMe equipment is offline, migrating virtualization software through the virtual equipment; when it is detected thatvirtualization software migration is completed, connecting new NVMe equipment to a target-end virtual machine, transmitting the new NVMe equipment to the target-end virtual machine, then matching theNVMe equipment with the new NVMe dequipment to obtain a matching result, and when the matching result is consistent, completing virtual machine data migration. The invention also relates to a blockchain technology. The NVMe equipment is stored in the blockchain. According to the application, online migration of the virtual machine data is realized, so that the migration efficiency of the virtual machine data is improved.

A real-time online cloud migration method of an autonomous controllable operating system comprises the following steps: S1, developing and customizing a disk I / O filter driver and an I / O data networktransmission module according to version characteristics of a domestic operating system; and S2, performing data reading in combination with a disk block level and an operating system driver layer. Adisk block level and an operating system driving layer migration technology are combined, customization is carried out according to a specific kernel and a driving interface of a domestic security operating system, a mainstream autonomous controllable security system in China at present is supported, and a P2P system, a P2V system, a V2V system and a V2P system are supported. In the invention, thesystem can realize smooth migration between various hardware platforms and various virtualization platforms. The system mirrors all data of the whole system to various private clouds or public cloudswithout shutdown in a production environment, the smooth data migration process is safe and controllable, and real online migration is realized.

The invention relates to a data online migration method and device, electronic equipment and a storage medium, and belongs to the technical field of data processing. The method comprises the steps that when a first business device is controlled to provide a transaction service, to-be-migrated data is determined, and the first business device corresponds to a first database; initializing and migrating the to-be-migrated data from the first database to a second database, wherein the second database corresponds to a second business device; and after the to-be-migrated data is initialized and migrated from the first database to the second database, controlling the second business device to provide a transaction service to the outside. According to the technical scheme, online migration of the data between the databases can be achieved, the efficiency of data migration between the databases is effectively improved, in addition, due to the fact that the corresponding service devices are still controlled to provide the transaction service externally in the migration process, the influence of data migration on the transaction service can be effectively reduced, and online non-stop migration is achieved.

Provided are an online file migration method, device and system. The method includes: mounting a source device to a target device through a network file sharing protocol, the source device and the target device both being an NAS device; establishing on the target device a mirror file of a file on the source device, the mirror file being initially an empty file; migrating the data in the file on the source device to the target device through network transmission by way of the network file sharing protocol; and processing an access request of a user by the target device during data migration. The technical solution in the present invention can realize online file migration between two NAS devices and can be suitable for online file migration among NAS devices manufactured according to different standards or by different manufacturers.

This application relates to the technical field of cloud technology, and discloses a virtual machine data migration method, device, computer equipment, and storage medium, wherein the method includes virtualizing the remote storage device into an NVMe device after detecting a virtual machine migration message, and The NVMe device is passed to the virtual machine, and the virtual device is created through the virtual middle layer. Then, when the NVMe device is detected to be offline, the virtualization software is migrated through the virtual device; The new NVMe device is connected to the machine, and the new NVMe device is passed to the target virtual machine, and then the matching result is obtained by matching the NVMe device with the new NVMe device. When the matching results are consistent, the virtual machine data migration is completed. This application also relates to blockchain technology, and NVMe devices are stored in the blockchain. This application implements online migration of virtual machine data, so as to improve the migration efficiency of virtual machine data.

The present application discloses a distributed storage volume online migration method, system, device, and computer-readable storage medium, including acquiring a metadata object storing metadata of the original volume; creating a metadata object in the target storage pool corresponding to the migration instruction; Data context handle and data context handle; store the metadata object to the metadata context handle; store the original volume information field in the metadata object to the target volume; copy the data objects in the original volume to the target volume in sequence; target The ID of the copied data object is recorded in the volume; this application stores the metadata object of the original volume to the target storage pool and the target volume, without destroying the original index relationship of the data in the original volume, and can use the information of the original volume to access the target At the same time, the ID of the data object is used to ensure that the data of the original volume can still be accessed during the migration process, and the data that has been migrated to the target volume is preferentially accessed, so as to realize the imperceptible online migration of storage volumes.

The invention relates to a transfer method of a virtual machine. The method comprises the following steps: step one, keeping the virtual machine to operate at the source port, copying the disc file and the memory status of the virtual machine to the destination port and recording deviation position signal when the disc file of the virtual machine at the source port conducts writing operation; step two, sending the deviation position signal when the disc file of the virtual machine at the source port conducts writing operation to the destination port, so that the virtual machine starts to run at the destination port and stops to run at the source port; and starting the limitation to the read of the disc file of the virtual machine at the destination port; and step three, sending the content of deviation position of the disc file required by the virtual machine to the destination port by the source port according to the operation need of the destination port. The transfer method of the virtual machine provided by the invention can continuously carry out the transferring of virtual machines, and can send the deviation position content of the disc file, which changes in the process ofdisc transferring to the destination port according to the need of the destination port, thereby reducing interrupt time and execution time in the transferring process of virtual machines.

The invention discloses a method and a device for realizing online migration of a distributed storage volume; the method comprises the steps: building a real logical volume in a storage pool for storing business data, building an RAID 1 relation R1, virtualizing a logical volume as virtual equipment of the R1, mapping the logical volume to a business system, enabling one mirror image in the R1 to point to the built real logical volume, and not designating the other mirror image at this time; then along with the continuous development of the business, when the requirement of the business for the read-write performance is not matched with the performance of the storage pool, creating a new logical volume with the same size on the migrated storage pool, then pointing the other mirror image of R1 to the new logical volume, triggering the data synchronization operation of R1, and synchronizing the business data stored in the original logical volume to the new logical volume; after synchronization is completed, offlining and deleting the original logical volume from the R1. Data migration is carried out on the basis of the RAID 1 data synchronization function, operation is easier, service pause cannot be caused in the operation process, and the operation risk is reduced.

The invention relates to an on-line migration method of a virtual machine in a wide area network under future network NDN (Named Data Network). The method comprises the following steps: a migration data sending side writes migration data of the virtual machine into a standard input stream, and packages the data into a data message to be issued in a content buffer area; a migration data receiving side requests the migration data sending side for data, the migration data sending side inquire the data from the content buffer area and sends the data to the migration data receiving side; and the migration data receiving side receives the data message, analyzes the data and writes the data into a standard output stream, and the virtual machine reads the data from the standard output stream and is loaded. Compared with the prior art, the on-line migration method of the virtual machine in the wide area network under future network NDN realizes on-line migration of the virtual machine in the wide area network under the NDN network, enables applications on the virtual machine to be kept continuous in the migration process of the virtual machine, realizes seamless migration of the virtual machine, ensures the network to be unimpeded through a dynamic self-adaptive mechanism after the migration is completed, and is of great significance to cloud computing and load balance of the future network NDN.