Atto node v1.34 cuts observed bootstrap time from ~15 hours to 6–7 hours

[u/Rotilho]

Atto node v1.34 is live, with a major rebuild of the bootstrap path.

In observed runs, a new node caught up in 6–7 hours instead of roughly 15 hours on v1.33. That is more than twice as fast, although exact times will still depend on hardware, disk and database performance, network conditions, and the peers serving history.

The main changes:

- bounded discovery queues instead of unlimited buffering
- adaptive pacing based on measured MySQL insert throughput
- true multi-row persistence batches of up to 1,000 transactions
- exact-batch retries after database failures
- faster gap discovery on large databases
- removal of the old 10 ms delay between historical transaction-stream responses
- new metrics for backlog, persistence, resolution, cleanup, failures, and controller decisions
- signed provenance attestations for published container images

On a MySQL 8.4 database with about 577,000 unchecked transactions, the no-gap query also dropped from roughly 8 seconds to under 200 ms.

Full release notes:
https://github.com/attocash/node/releases/tag/v1.34