Virtualized Resource Quick Restart via Host Migration
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Solution Overview
Problem
Conventional restarts of virtualized resources in cloud-based networks are associated with high latency, loss of configuration, resource-intensive network usage, and potential insufficient capacity errors, leading to undesirable interruptions and performance degradation.
Innovation Solution
Implementing a 'quick restart' method that migrates virtualized resources to a new host while maintaining their configuration, ensuring sufficient capacity is reserved, and optimizing network resource utilization, thereby reducing latency and preventing capacity errors.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a virtualized resource is restarted conventionally, then its functionality is restored, but high latency and network resource burden occur
Solution Approach 1:
The system performs preliminary actions by identifying and reserving a target host with sufficient capacity before the virtualized resource stops functioning. This advance preparation ensures that when migration is needed, the target infrastructure is already ready, eliminating delays associated with finding and provisioning resources during the restart process.
Solution Approach 2:
The patent introduces a host manager as an intermediary component that coordinates between the virtualized resource, source host, and target host. This intermediary manages the migration process, resource allocation, and capacity verification, streamlining the restart operation and reducing the time required for functionality restoration.
2Reliability
If a virtualized resource is restarted conventionally, then functionality is restored, but configuration is lost
Solution Approach 1:
Instead of recreating the virtualized resource from scratch during restart, the system copies the existing virtualized resource to a target host. This copying approach preserves the original configuration, settings, and state information, allowing the resource to resume operations without loss of information while still achieving functionality restoration.
3Loss of time
If a virtualized resource is migrated during restart, then latency is reduced, but capacity errors may occur
Solution Approach 1:
The system performs preliminary capacity verification by checking whether the target host has sufficient resources before initiating the migration. This advance check prevents capacity errors from occurring during the restart process, ensuring that the migrated virtualized resource can be successfully accommodated without causing system failures.
4Productivity
If multiple virtualized resources are hosted on the same physical server, then resource utilization is optimized, but performance degradation occurs
Solution Approach 1:
The patent implements segmentation by enabling virtualized resources to be migrated between different physical hosts. This segmentation allows the system to maintain high resource utilization through virtualization while avoiding performance degradation by separating resources that would otherwise compete on the same physical server, thus resolving the contradiction between productivity and reliability.
Data Source
AI summary
This disclosure describes systems, devices, and techniques for quick restarts of virtualized resources hosted by a cloud-based network. In an example method, a request to restart a virtualized resource hosted by a first server can be received. A second server, with a capacity to host the virtualized resource, may be identified. In response to identifying the second server, the virtualized resource can be migrated from the first server to the second server. A message confirming that the virtualized resource has been restarted may be transmitted.