Dynamic pre-copy and post-copy determination for live migration between cloud regions and edge locations

    公开(公告)号:US11461123B1

    公开(公告)日:2022-10-04

    申请号:US16691184

    申请日:2019-11-21

    Abstract: This disclosure describes systems, devices, and techniques for live migrating virtualized resources between the main region and edge locations. Live migration enables virtualized resources to remain operational during migration. Edge locations are typically separated from secure data centers via the Internet, a direct connection, or some other intermediate network. Accordingly, to place virtualized resources within an edge location, the virtualized resources must be migrated over a secure communication tunnel that can protect virtualized resource data during transmission over the intermediate network. The secure communication tunnel may have limited data throughput. To efficiently utilize resources of the secure communication tunnel, virtualized resource data may be transferred over the tunnel in a two-stage process. The disclosed technology provides various techniques for dynamically selecting which virtualized resource data, and how much virtualized resource data, is transferred over each of the pre-copy and post-copy stages.

    CUSTOMER-INITIATED VIRTUAL MACHINE RESOURCE ALLOCATION SHARING

    公开(公告)号:US20240111603A1

    公开(公告)日:2024-04-04

    申请号:US17958084

    申请日:2022-09-30

    Abstract: Techniques for customer-initiated virtual machine resource allocation sharing are described. A hardware virtualization service of a cloud provider network receives a request to launch a first virtual machine, wherein the first virtual machine is of a first virtual machine type, the first virtual machine type having a resource amount allocated to virtual machines of the first virtual machine type. The hardware virtualization service causes a launch of the first virtual machine on a host computer system of the cloud provider network. The host computer system shares an allocation of the resource amount from a corresponding resource of the host computer system between the first virtual machine and a second virtual machine, wherein the second virtual machine is of the first virtual machine type.

    CODE EXECUTION ON A DISTRIBUTED UNIT
    15.
    发明公开

    公开(公告)号:US20240111599A1

    公开(公告)日:2024-04-04

    申请号:US17937346

    申请日:2022-09-30

    Abstract: Systems and methods are described for implementing a distributed unit in a radio access network that executes code on behalf of mobile devices. A distributed unit may be implemented on an edge server that is in close physical proximity to a radio unit, with few or no intervening devices. The edge server may thus provide services to mobile devices, such as executing code on behalf of a mobile device in an execution environment on the edge server, at significantly lower latency than more distant cloud-based servers. The edge server may preload computing environments with code for which a mobile device is likely to request execution (e.g., because a particular application is executing on the mobile device), and may determine whether to execute code on the edge server or on a cloud provider network.

    Virtual machine cloning and resource configuration

    公开(公告)号:US11853785B1

    公开(公告)日:2023-12-26

    申请号:US16806619

    申请日:2020-03-02

    Abstract: Generally described, one or more aspects of the present application relate to an instance cloning service for cloning a running virtual machine instance and configuring the resources of the new virtual machine instance created by cloning the running virtual machine instance. For example, the instance cloning service can create the new virtual machine instance and attach it to a storage volume to which the original virtual machine instance is attached. The instance cloning service may subsequently move the new virtual machine instance to another storage volume (e.g., based on a user request or based on the performance of the instances). Alternatively, upon cloning, the instance cloning service may attach the new virtual machine instance to a new storage volume. For example, the instance cloning service may use copy-on-write to provide the new virtual machine instance with its own storage volume.

    Dynamic scheduling for live migration between cloud regions and edge locations

    公开(公告)号:US11573839B1

    公开(公告)日:2023-02-07

    申请号:US16691212

    申请日:2019-11-21

    Abstract: This disclosure describes systems, devices, and techniques for migrating virtualized resources between the main region and edge locations. Live migration enables virtualized resources to remain operational during migration. Edge locations are typically separated from secure data centers via the Internet, a direct connection, or some other intermediate network. Accordingly, to place virtualized resources within an edge location, the virtualized resources must be migrated over a secure communication tunnel that can protect virtualized resource data during transmission over the intermediate network. The secure communication tunnel may have limited data throughput. To efficiently utilize resources of the secure communication tunnel, and to reduce the impact of migrations on virtualized resource operations, virtualized resource migrations may be carefully scheduled in advance. For instance, virtualized resources may be selectively migrated at times-of-day in which they are likely to be relatively idle, or at times when the communication tunnel is predicted to have sufficient bandwidth.

    Automatic snapshotting for recovery of instances with local storage

    公开(公告)号:US11366682B1

    公开(公告)日:2022-06-21

    申请号:US16660617

    申请日:2019-10-22

    Abstract: Snapshots of instance store volumes may be automatically obtained prior to an upcoming migration event for an associated VM instance(s). This automated snapshotting allows customers to restore their data from the snapshot of their instance store volumes in the event of a failure during the migration event that results in an inability to start (or launch) the customer's VM instance on a target host computer. In an example process, a computing device(s) may determine that a migration event is scheduled to be performed for a VM instance, determine that the VM instance is associated with one or more instance store volumes, obtain a snapshot of the one or more instance store volumes, and store the snapshot in storage of a network-based storage service prior to performing the migration event. In some embodiments, the snapshot may be stored in association with a service provider account of the network-based storage service.

    Post data synchronization for domain migration

    公开(公告)号:US10771534B2

    公开(公告)日:2020-09-08

    申请号:US16297065

    申请日:2019-03-08

    Abstract: Methods and apparatus for post data synchronization in live migration of domains. Host devices on a network may implement virtual machines (VMs) as domains in an execution environment, and may provide local persistent storage for data of the VMs. A migration technique for moving a domain including the persistent data from one host device to another host device is described in which the VM is instantiated on the target device, and the domain is switched to the target device. Synchronization of the VM's data from the persistent storage on the source device to the target device is then initiated, for example according to a distributed replicated storage technique that makes the target device's persistent storage the primary storage and the source device's persistent storage the secondary storage for the VM. Once the data is synchronized, the VM and its respective storage on the source device are released.

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