166 results about "Live migration" patented technology

The invention provides a network interruption optimization method, system and device during virtual machine live migration and a medium, and belongs to the technical field of cloud computing. The method comprises the following steps: performing time synchronization on all computing nodes, and deploying message middleware; monitoring the memory migration progress of the virtual machine and the dirty page generation rate of the virtual machine in real time, and calculating a virtual machine switching time point; a live migration switching notification message is generated based on the virtual machine switching time point, and the source node pushes the live migration switching notification message to a target node and related computing nodes through message middleware; after receiving the live migration switching notification message, the target node creates virtual network equipment and updates a link according to the live migration switching notification message; after the related computing node receives the live migration switching notification message, routing equipment creation and link updating required by the virtual machine are carried out according to the live migration switching notification message; and monitoring the migration process of the virtual machine memory in real time, and executing the thermal migration rollback and retry process when the migration fails.

Described are techniques for multi-tenant security. The techniques include detecting malicious activity on a compromised application in a multi-tenant host. The techniques further include automatically performing a live migration of each tenant of the multi-tenant host to a respective single-tenant host. The techniques further include mitigating the malicious activity on the compromised application that is migrated to a single-tenant host, and automatically performing another live migration of each benign tenant to a new multi-tenant host.

The invention relates to the technical field of server resource scheduling, in particular to a server virtualization integration system and method. The method comprises the following steps: executing a multi-dimensional reference pressure test on each NUMA node in a physical server cluster to generate physical node performance data; monitoring a virtual machine cache event of a tenant virtual machine in real time by utilizing the virtualization management platform, and determining tenant load snapshot data; evaluating the matching degree between the remote memory access demand of the virtual machine and the node localization supply capability according to the tenant load snapshot data, determining an optimal host migration target, and starting real-time migration of the virtual machine by the virtualization management platform to obtain a server migration integration process; and monitoring an abnormal state after migration in real time according to a server migration integration process so as to realize secondary forced scheduling integration request processing. According to the method, the optimal matching between the virtual machine and the physical node in the server is realized, the resource utilization efficiency is improved, and the cross-NUMA access overhead is reduced.

A process migration method includes a source host that copies a memory page of the to-be-migrated process to storage space of a first component of the source host in response to a received first migration indication; the source host sends the memory page of the to-be-migrated process to the destination host via a remote access system of the first component; and the destination host restores the to-be-migrated process based on the received memory page of the to-be-migrated process, to implement live migration of the to-be-migrated process. The remote access system is configured to perform data access on a remote host.

The present application provides a network configuration information processing method. For the process of virtual machine live migration, a function of delaying deletion of a virtual machine on an original node computer is realized on the network control plane, so that when a node in the network system sends a message for accessing the live migration virtual machine, even if the node does not refresh the corresponding relationship between the live migration virtual machine and the destination node computer, the message for accessing the live migration virtual machine can still be sent to the original node computer for relaying or processing, and the packet loss probability of the message for accessing the live migration virtual machine can be reduced in the process of virtual machine live migration and within a certain period after the virtual machine live migration is completed.

A smart memory module includes at least one memory device connected to at least one channel, a controller configured to control the at least one memory device, and a host interface circuit configured to perform peer-to-peer (P2P) communication with an external device, and to receive, from a host device, a live migration request. The controller is configured to perform, in response to the live migration request, a migration operation of transmitting buffer data to a target device through the P2P communication under a buffer-full condition.

The invention provides a page marking method, device and equipment, and the method can comprise the steps: receiving a memory operation request corresponding to a virtual machine in a live migration process of the virtual machine, the memory operation request being used for requesting to operate a target memory page; according to the memory operation request, operating data in the target memory page; in a first storage space corresponding to the virtual machine, the page identifier of the target memory page is updated to a dirty identifier, and the dirty identifier is used for indicating that data in the target memory page is updated. And the migration efficiency of the data in the target memory page is improved.

Provided in the embodiments of the present disclosure are a virtual machine live migration method, a physical host and a storage medium. The method comprises: a virtual machine monitor firstly acquiring service feature information that is fed back by an application program running on a virtual machine and providing a target service; and then, the virtual machine monitor determining a corresponding migration strategy on the basis of the service feature information, and using the migration strategy to migrate the virtual machine. In the method, a migration strategy determined by a virtual machine monitor on the basis of service feature information is obviously applicable to a target service. Therefore, the live migration effect of a virtual machine can be ensured and optimized. Moreover, the service feature information can be directly fed back to the virtual machine monitor by an application program, which, compared with the method of using the virtual machine monitor to perform detection, has low implementation difficulty and higher accuracy. Therefore, using the service feature information can further improve the rationality of the migration strategy determined by the virtual machine monitor, thereby ensuring the live migration effect.

Systems and methods are directed toward migration operations, such as live migration operations, associated with confidential computing environments. Responsive to a request to migrate data, a secure hypervisor may establish a secure communication channel to a network interface controller to pass one or more keys for accessing securely stored data. The secure hypervisor may generate a descriptor associated with a memory location of the data and then pass the descriptor to the network interface controller. As a result, encryption / decryption operations may be offloaded to the network interface controller, which may use the descriptor and key to migrate the data from a source location to a destination location.

A computing system may access a source device configured to store device traffic in a source device queue. The computing system may launch, by one or more worker nodes of a control plane of the computing device, a destination device. The computing system may transmit a source device state to the destination device. The control plane worker nodes may configure the destination device from the source device state. The computing system may instruct the source device to pause storing the device traffic to the source device guest memory. The computing system may store dirty page information in the computing system memory. The computing system may transmit the dirty page information to the destination guest memory. The computing system may instruct the destination device to resume storing the device traffic to the destination guest memory.

Embodiments described herein are generally directed to an improved workload submission handling strategy for workloads received during live migration and targeting VFs of a hardware accelerator. In an example, while performing a live migration of a source VM running on a source host to a destination VM of a destination host, a new workload targeting a VF of a first HW accelerator of the source host is identified by a HW status manager of the source host by trapping the workload submission channel. Based on a nature of the new workload, the HW status manager determines whether to transfer the new workload to the destination host. Responsive to an affirmative determination, the HW status manager causes the new workload to be submitted to a VF of a second HW accelerator of the destination host by incorporating information regarding the new workload within a migration stream associated with the live migration.

The invention relates to thermal migration for confidential computing environments. The system and method are directed to migration operations associated with a confidential computing environment, such as thermal migration operations. In response to a request to migrate data, the security hypervisor may establish a secure communication channel to the network interface controller to communicate one or more keys for accessing the securely stored data. The security hypervisor may generate a descriptor associated with the memory location of the data and then communicate the descriptor to the network interface controller. Thus, encryption / decryption operations may be offloaded to the network interface controller, which may use the descriptor and the key to migrate data from the source location to the destination location.

The invention relates to the technical field of virtual machines, in particular to a virtual machine live migration protocol authentication and data protection method which comprises a migration end configuration process, a migrated end configuration process and a migration process. The migration end carries out a migration end configuration process to obtain strategy configuration data of the migration end; the migrated end carries out a migrated end configuration process to obtain strategy configuration data of the migrated end; based on the strategy configuration data of the migration end and the strategy configuration data of the migrated end, the migration end and the migrated end enter a migration process so as to carry out double-end protocol authentication of the migration end and the migrated end, and after the double-end protocol authentication is passed, the migration data is migrated from the migration end to the migrated end, so that the safety protection of the migration data is realized. And the data migration performance is improved.

The invention relates to the technical field of virtual machine live migration, in particular to an optimization method and system for achieving zero packet loss in the live migration process of a cloud platform virtual machine, and the method comprises the steps: adding an event publishing module in a Neutron service layer, pushing an event notification to a related OVS-Agent node through a message bus when the state of a port is changed, identifying event types based on port attribute pattern matching; the method has the advantages that by optimizing event processing and port binding logic, the service interruption time of the virtual machine in the live migration process is shortened, and the continuity and stability of services are improved; through plug-and-play network configuration and rapid flow table issuing, the packet loss rate in the live migration process is significantly reduced, and even zero packet loss can be realized, thereby improving the reliability of network transmission.

A device identifies a first entry at a virtual commit queue, the first entry including a command identifier and an opcode. The device determines, based on the opcode, whether a command is emulated by a virtual non-volatile memory fast (NVMe) controller or executed by a physical NVMe controller. The device inserts a second entry into a physical controller commit queue, the second entry including a command identifier and: an opcode (physical execution determination), or a placeholder command opcode (emulation determination). Later, the device identifies a third entry at the physical controller completion queue, the third entry including the command identifier. Based on the command identifier, the device retrieves the first entry from the virtual commit queue. The device inserts a fourth entry into the virtual completion queue, the fourth entry including the command identifier and: a result of emulating the command, or a result of executing the command by the NVMe controller.

The invention discloses a real-time migration system for a containerized RDMA network. The real-time migration system comprises a source host, a target host and a communication peer, under a software virtualization containerization RDMA network deployment mode; the source host records creation parameters carried in the RDMA resource creation request and sends the creation parameters to the target host; when the communication peer pauses the communication with the source host connection queue pair, the memory data is transferred to the target host; the target host creates the same RDMA resource according to the creation parameter; the target host synchronizes RDMA resource communication identification information of the newly created RDMA resource to the communication peer; and the communication peer pauses communication with the RDMA resource connection queue pair of the source host, and establishes communication with the RDMA resource on the target host after finishing final dump between the source host and the target host. The real-time migration system and the real-time migration method are completely compatible with the existing containerized RDMA network, and the communication efficiency and the performance isolation are not damaged.

The invention discloses a live migration method for a virtual machine without interruption and a virtualization system, and belongs to the technical field of cloud computing virtualization systems.The method comprises the steps that the virtual machine which is completely the same as a source node is created on a target node, and the state of the virtual machine is adjusted to be a pause state; querying a source node security group table item associated with the migration virtual machine, wherein the source node security group table item comprises a vswitch data plane flow table and a connection tracking table of a source node; migrating the source node security group table item from the source node to the target node; the virtual machine of the target node decompresses the received file, reads the file into a memory, and updates the vswitch data plane flow table of the source node; adding the connection tracking table of the source node and the updated vswitch data plane flow table of the source node to the vswitch data plane of the target node; and after the thermal migration of the virtual machine is finished, adjusting the state of the virtual machine of the target node to be running. According to the invention, when the virtual machine is subjected to thermal migration, the network flow is ensured to be uninterrupted, and the user experience of the service application of the virtual machine is improved.

A migration method and a migration system of a virtual machine are disclosed. The method includes: a virtual machine detecting whether a migration instruction is received, wherein the virtual machine runs on a first processor of a first host machine; the virtual machine calling and obtaining video memory data generated in the first processor if the migration instruction is detected; and the virtual machine migrating the video memory data to a second processor of a second host machine. The present disclosure solves the technical problem that a virtual machine using a GPU pass-through mode fails to perform a live migration between host machines in the existing technologies.

Provided is a method for managing a data migration operation, including creating, by a storage device, a read submission queue entry indicating a location of data at a source storage of the storage device to be copied from the source storage to a target storage, the read submission queue entry including a field including metadata including information for reading the data from the source storage.

Embodiments of the invention disclose a virtual machine live migration management method and apparatus, an electronic device and a storage medium. The method comprises the steps of obtaining historical operation data of each virtual machine in a cloud platform environment; constructing a learning task framework composed of a state space, an action space and a reward function; training a state value function, a guide strategy and an execution strategy in the learning task framework based on the historical operation data; the state value function is used for evaluating a state long-term value, the guide strategy is used for planning a target state, and the execution strategy is used for generating a specific migration action; integrating the trained state value function, the guidance strategy and the execution strategy to obtain a migration strategy generation model; and generating a live migration strategy of the virtual machine based on the migration strategy generation model. A migration strategy generation model is obtained through training, and a complex migration strategy can be learned from historical operation data, so that a live migration strategy is dynamically generated, and intelligence and flexibility of migration decision making are remarkably improved.

Embodiments of a method for performing a live update are provided. The method includes determining a migration type for a live migration to be performed from a source server to a target server; and performing the live migration from the source server to the target server. The method also includes maintaining pages to be migrated based on the migration type, tracking modifications in a hypervisor page table, and performing a reverse migration based on the migration type. Embodiments of a system and computer program product for performing a live update are also provided.

The present application relates to a user backup method, apparatus, system, device, medium, and program product, and relates to the field of communications technology. In this method, in response to fault information from a target forwarding plane device, the faulty user access port on the target forwarding plane device is obtained. Based on the faulty user access port, the real-time migration priorities of multiple normal user access ports corresponding to the control plane device are then obtained. Finally, user backup of the faulty user access port is performed based on the real-time migration priorities and real-time idle ratios of each normal user access port. This method can largely prevent users on the faulty user access port from being disconnected, ensuring the normal processing of user services.

The present disclosure relates to a device and a method for implementing live migration, where an on-chip system of the present disclosure is comprised in an integrated circuit apparatus, which comprises a general interconnection interface and other processing apparatuses. The computation apparatus interacts with other processing apparatuses to jointly complete computing operations specified by users. The integrated circuit apparatus also comprises a storage apparatus. The storage apparatus is respectively connected to the computation apparatus and other processing apparatuses and is used for storing data of the computation apparatus and other processing apparatuses.

The invention discloses a container real-time migration method and system and a medium. The method comprises the steps that a deduplication method based on content definition partitioning is introduced into container real-time migration, highly redundant memory pages are effectively detected and removed, and an optimal data reduction algorithm is dynamically selected to improve migration performance by means of an adaptive data reduction technology. Experimental results show that the total migration time can be reduced by 75%, and stable performance can be kept under different working load and bandwidth conditions.

A process of an operating system detects a dynamic migration, the dynamic migration including a change in hardware characteristics of a computer system on which the process is executed. A first message is broadcast to a group of processors, the first message causing each processor in the group of processors to enter a wait state. While each processor in the group of processors is in the wait state, a portion of a set of program instructions of the operating system is modified.

The application provides a container virtual machine management method and system, comprising: deploying a Kubevirt project in a Kubernetes cluster, enabling an EKS cloud platform to run a virtual machine in a container mode; and determining a cloud management interface graphical interface configuration, a customized image, real-time migration, CPU performance optimization and virtual machine internal performance index monitoring of the EKS cloud platform. The application manages and schedules virtual machine resources and container resources by the Kubernetes, provides a unified development platform for developers, realizes the expansion of cloud platform resources, directly places virtualization workloads in a development workflow, supports internal interaction access between a virtual machine application and a containerized application, and enables the decomposition of the application while still using the remaining virtualization components on demand.

Embodiments of the present application provide a virtual machine live migration method, device, system and storage medium. An optimization scheme is proposed for a traditional live migration architecture. By configuring an acceleration device for a source host, the live migration work of the control plane and the data plane can be completely sunk to the acceleration device for execution on the source host side. The live migration work can be completed by cooperation of the destination host and the acceleration device, which realizes zero dependence of the live migration work on the source host resources. Even in the case that the computing resources of the source host are fully occupied, the performance of the live migration is not affected, and the live migration function achieves zero jitter for a virtual machine running on the source host.

A cluster distributed resource scheduling method, apparatus and device, and a storage medium. The method includes: respectively acquiring host CPU utilization rates and vCPU utilization rates; respectively performing a quantization operation on the host CPU utilization rates and the vCPU utilization rates, to obtain host quantized pressure values and virtual machine quantized pressure values; acquiring historical host pressure values and historical virtual machine pressure values; according to the host quantified pressure values and historical host pressure values respectively corresponding to hosts, and virtual machine quantified pressure values and historical virtual machine pressure values respectively corresponding to virtual machines in the hosts, calculating target CPU pressure values respectively corresponding to the hosts; and performing a live migration operation on the virtual machines in the hosts according to the target CPU pressure values.

Provided herein are various enhancements for low downtime migration of virtualized software services across different instantiations, which may include real-time migration over different cloud / server providers and platforms, physical locations, network locations, and across different network elements. Examples herein include handling of migration of data and state for virtualized software services, migration of ingress and egress traffic for the software services, and migration of other various operations aspects applicable to virtualized software services. In many instances, a client node retains the same network addressing used to reach the virtualized software services even as the virtualized software services move to different network locations and physical locations.