The core developers have tagged a new 2021.11.21.2 Hotspot firmware release which includes
highly recommended fixes to improve network-wide block sync and snapshot ingestion on Hotspots
with less memory.
Note that this blog post also covers the 2021.11.21.1 emergency release, which was released with
very little warning very, very early this morning. 2021.11.21.2 contains all of the fixes
mentioned in this post.
The primary fixes here are:
- Rescue blocks were not considered "plausible" by newer gossip code, and were not getting distributed except via fastforward.
- The snapshot loading code has been rewritten to take much less memory, allowing lower-memory Hotspots to load snapshots and follow the chain more easily.
Related PRs
- blockchain-core#1111: Rework snap loading to take less memory.
- blockchain-core#1120: Make rescue blocks plausible.
Plan
We have been beta testing 2021.11.21.2 since November 21, 2021 9:00 AM PT. Current ETA for GA is
12:30 PM PT, November 21, 2021.