VM Snapshot Connection Closure for Consistency
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Solution Overview
Problem
Virtual machine snapshots can inadvertently repeat one-time communications, leading to errors and inefficiencies due to duplicated actions over existing connections.
Innovation Solution
A hypervisor causes existing connections between a virtual machine and external entities to close before creating a snapshot, ensuring that the snapshot is taken without active connections and preventing repeated transactions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a snapshot of the virtual machine is created while existing connections are active, then the snapshot process is simpler and faster, but the snapshot may inadvertently repeat one-time communications causing errors
Solution Approach 1:
The hypervisor performs preliminary actions by closing existing connections before creating the snapshot. This ensures that the snapshot captures a consistent state without active connections that could lead to repeated one-time communications, thereby maintaining reliability while managing the trade-off with productivity.
2Reliability
If existing connections are closed before snapshot creation, then repeated transactions are prevented, but additional time is required to manage connection states
Solution Approach 1:
The system performs the connection closure as a preliminary action before snapshot creation. This automated preliminary step ensures transaction consistency by preventing repeated one-time communications, while the time overhead is managed through automation and integration into the snapshot workflow.
Data Source
AI summary
A hypervisor executing on a host computing system causes an existing connection between a virtual machine implemented by the hypervisor and an entity separate from the virtual machine to close. The hypervisor creates a snapshot of the virtual machine.