fix(cuprate): enable fast_sync and raise DB cache — sustained 45% CPU #153

Merged
chaum merged 2 commits from cuprate-cpu-fix into main 2026-09-07 07:24:26 +00:00
2 Commits
Author SHA1 Message Date
ssmithxandClaude Sonnet 5 f9a1ef031c fix(cuprate): front the restricted RPC port with a Tor onion
The restricted-RPC port (18090) was `auth: none`, which the app gate
treats as fully exempt — no onion, no takeover, LAN/Tailscale IP only.
Flip it to `auth: open`: the gate still binds the external addresses
and fronts a Tor onion for the port, just without a dashboard login
challenge, since Monero wallet clients (Feather, monero-wallet-rpc,
GUI) speak plain HTTP JSON-RPC and can't hold a session cookie.

P2P (18183) stays `none` — no reason to Tor-front raw gossip.

Regenerated releases/app-catalog.json (unsigned) to embed the updated
manifest; needs scripts/sign-catalog.sh before it takes effect on any
node, since origin (catalog) wins over disk for catalog-covered apps.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01NZnsiMtyJxiJBuvv7yLPUF
2026-09-03 14:51:24 +00:00
ssmithxandClaude Sonnet 5 cf240df4b6 fix(cuprate): enable fast_sync and raise DB cache — sustained 45% CPU
The default manifest baked in the exact broken config found on an
affected fleet node: no fast_sync (defaults false, forcing full ring-sig/
RandomX verification on every block) and target_max_memory capped at
~2.8GiB, which starved cuprated's DB cache into constant eviction/flush
(595GB/24h of block I/O on a node just appending ~2MB blocks every 2
minutes). A reference node with fast_sync = true and an 8GiB cache ran
at 2.8% CPU at the same chain height and block rate.

Set fast_sync = true and target_max_memory = 8GiB to match the healthy
reference config, and raise resources.memory_limit from 4Gi to 10Gi so
the container still has headroom above the larger cache.

Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01RR7jRaicvqsJaqQQ92jpPQ
2026-09-03 08:56:52 +00:00