Status Update
We carried out the Asset Hub Migration on Westend, migrating Staking, Governance and Balances along with associated functionality off the Relay Chain. These are now on Asset Hub.
Bugs and fixes
The migration was largely successful and has provided valuable insights. During the staking migration, we encountered an unexpected issue where an excessive number of messages were sent. This was due to the backpressure system not being properly engaged for this specific pallet. The issue did not surface in earlier testing, as the message volume was insufficient to trigger it.
Testing with the complete state helped uncover this edge case, which temporarily stalled Asset Hub. Recovery took approximately three hours and involved targeted corrections to Asset Hub’s state. Thanks to this process, we have improved our understanding of the backpressure mechanisms under full load and identified enhancements to future migration testing scenarios.
Following validation of the corrected state, staking has now been successfully re-enabled on Westend.
Next Steps
Now that we have migrated these functionalities to Asset Hub, we will continue to sunset Asset Hub Next as communicated previously. Any tests which were previously using Asset Hub Next can be switched over to Asset Hub, which includes the state.
Asset Hub Migration on Paseo
After polishing the migration with AHM on Westend, we are now planning the upcoming Paseo AHM. We will begin preparing the runtimes for Paseo based on the polished version of the Westend migration by the end of this week.
The Zombie Bite-based dry-running framework is complete, enabling us to simulate the migration using the actual Paseo state before live deployment. This will give us the ability to detect any issues before we go live on the live network, and avoid any issues like those we saw on Westend.
As mentioned before, you can refer to the documents below for guidance:
- Critical User Journeys for external testing
Please test these use cases and come back to us if any user journey is missing or not working as expected. - Asset Hub Migration FAQ
Check if you find an answer to your question here first - Migration timeline
We’ve updated the migration roadmap to reflect realistic timelines, please check them out and plan accordingly.
Thank you,
Parity Technologies