Investigate and Implement Multi-Block Migrations

[sam0x17]

Description

To reduce the risk of prolonged runtime upgrade times and minimize the impact of consensus issues, we need to investigate and potentially implement multi-block migrations. This approach allows a single migration to span multiple blocks, providing more flexibility and resilience during the upgrade process.

Acceptance Criteria

• A comprehensive analysis report of the multi-block migration approach proposed in paritytech/polkadot-sdk#1781 is produced, detailing its compatibility with our current runtime and consensus mechanism.
• The analysis report identifies any necessary modifications or adaptations required to implement multi-block migrations in our blockchain system.
• A proof-of-concept implementation of multi-block migrations is developed and successfully tested in a controlled test environment.
• The performance, security, and reliability of multi-block migrations are thoroughly evaluated through comprehensive testing, considering various network conditions and upgrade scenarios.
• A detailed documentation is created, outlining the findings from the analysis and testing, including the benefits, drawbacks, and any potential risks associated with multi-block migrations.
• If deemed feasible and beneficial, a clear implementation plan is developed, specifying the steps, timeline, and resources required to integrate multi-block migrations into our runtime upgrade process.
• The implementation plan is reviewed and approved by the development team and relevant stakeholders.
• The runtime upgrade documentation is updated to include information about multi-block migrations and their role in the upgrade process, if applicable.

Tasks

• Review the multi-block migration approach proposed in paritytech/polkadot-sdk#1781 and understand its underlying concepts and mechanisms.
• Analyze the compatibility of multi-block migrations with our current runtime and consensus mechanism, identifying any potential conflicts or limitations.
• Assess the impact of multi-block migrations on our existing upgrade process, considering factors such as upgrade time, network stability, and validator coordination.
• Identify any necessary modifications or adaptations required to implement multi-block migrations in our blockchain system, such as changes to the runtime, consensus logic, or storage structures.
• Develop a proof-of-concept implementation of multi-block migrations in a controlled test environment, leveraging the insights gained from the analysis.
• Design and execute comprehensive testing scenarios to evaluate the performance, security, and reliability of multi-block migrations, considering various network conditions and upgrade scenarios.
• Document the findings from the analysis and testing, highlighting the benefits, drawbacks, and any potential risks associated with multi-block migrations.
• If the investigation concludes that multi-block migrations are feasible and beneficial, create a detailed implementation plan outlining the steps, timeline, and resources required to integrate them into our runtime upgrade process.
• Engage with the development team and stakeholders to gather feedback and refine the implementation plan based on their input and concerns.
• Update the runtime upgrade documentation to include information about multi-block migrations and their role in the upgrade process, if applicable.

Additional Considerations

• Consider the impact of multi-block migrations on the overall network performance and scalability, and assess any potential trade-offs.
• Evaluate the security implications of multi-block migrations and ensure that appropriate measures are in place to mitigate any identified risks.
• Engage with the community and seek feedback from other projects or experts who have experience with multi-block migrations in similar blockchain systems.
• Consider the long-term maintainability and upgradability of the system when implementing multi-block migrations, ensuring that future upgrades and modifications can be accommodated smoothly.

Related Issues

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References

• paritytech/polkadot-sdk#1781