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chore: release v1.7.47-alpha

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Sync-perf tuning for bitcoin/bitcoin-core/bitcoin-knots/electrumx.

- Drop the --cpus=2 cap on bitcoin/electrumx variants. Script verification
  is parallelizable; the cap halved IBD speed on 4-8 core machines.
- Bump bitcoin --memory 4g→8g so dbcache=4096 has headroom for mempool +
  connection buffers + I/O. 4g was OOM-prone during heavy IBD.
- Bump electrumx --memory 1g→2g + add CACHE_MB=2048 + MAX_SEND=10MB.
- bitcoin-core CLI args gain -dbcache=4096 -par=0 -maxconnections=125.
- bitcoin-knots manifest matched (1024MB pruned / 4096MB full + par=0).

Future v2: host-RAM-aware dbcache scaling.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
archipelago
2026-04-29 15:47:51 -04:00
parent 992b673b20
commit 8a2899ab4a
7 changed files with 56 additions and 9 deletions
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9
apps/bitcoin-core/manifest.yml
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@@ -12,11 +12,16 @@ app:
network: archy-net
entrypoint: ["sh", "-lc"]
custom_args:
# Sync-speed flags: -par=0 uses every core (was capped at 2 by
# --cpus=2, now removed for bitcoin/electrumx). -dbcache sized to
# the IBD sweet spot — 4GB on full nodes, 1GB on pruned. Container
# --memory=8g (config.rs::get_memory_limit) leaves headroom for
# mempool + connections.
- >-
if [ "${DISK_GB:-0}" -lt 1000 ]; then
exec bitcoind -server=1 -prune=550 -rpcallowip=0.0.0.0/0 -rpcbind=0.0.0.0:8332 -listen=1 -bind=0.0.0.0:8333 -dbcache=512 -rpcuser="${BITCOIN_RPC_USER}" -rpcpassword="${BITCOIN_RPC_PASS}";
exec bitcoind -server=1 -prune=550 -rpcallowip=0.0.0.0/0 -rpcbind=0.0.0.0:8332 -listen=1 -bind=0.0.0.0:8333 -dbcache=1024 -par=0 -maxconnections=125 -rpcuser="${BITCOIN_RPC_USER}" -rpcpassword="${BITCOIN_RPC_PASS}";
else
exec bitcoind -server=1 -txindex=1 -rpcallowip=0.0.0.0/0 -rpcbind=0.0.0.0:8332 -listen=1 -bind=0.0.0.0:8333 -dbcache=4096 -rpcuser="${BITCOIN_RPC_USER}" -rpcpassword="${BITCOIN_RPC_PASS}";
exec bitcoind -server=1 -txindex=1 -rpcallowip=0.0.0.0/0 -rpcbind=0.0.0.0:8332 -listen=1 -bind=0.0.0.0:8333 -dbcache=4096 -par=0 -maxconnections=125 -rpcuser="${BITCOIN_RPC_USER}" -rpcpassword="${BITCOIN_RPC_PASS}";
fi
derived_env:
- key: DISK_GB