I’m running a Bitcoin Core full node (bitcoind) and using romanz/electrs (via Docker) to provide Electrum server functionality for querying address balances and related wallet info. However, I’m experiencing unexpectedly high latency: querying the balance for a random address consistently takes around 600-900 ms via btc-rpc-explorer RPC interface. For addresses with an enormous number of transactions, the query can take some seconds instead of ms
This is the docker compose yml file:
services:
bitcoin_service:
build:
context: .
dockerfile: Bitcoin.Dockerfile
args:
BITCOIN_VERSION: ${BTC_VERSION}
image: bitcoin_full_node
ports:
- 8333:8333
- 8332:8332
volumes:
- bitcoin_volume:/home/btc-user/.bitcoin
networks:
network:
ipv4_address: 192.168.1.219
healthcheck:
test: [
"CMD",
"bitcoin-cli",
"-rpccookiefile=/home/btc-user/.bitcoin/btc.cookie",
"-rpcport=8332",
"-rpcconnect=192.168.1.219",
"getblockchaininfo"
]
interval: 40s
timeout: 60s
retries: 45
electrs:
image: electrs:latest
build:
context: ./electrs/.
container_name: electrs
restart: always
ports:
- "50001:50001" # Electrum TCP port exposed on host and container
environment:
- ELECTRS_NETWORK=bitcoin
- ELECTRS_DAEMON_RPC_ADDR=192.168.1.219:8332
- ELECTRS_DAEMON_P2P_ADDR=192.168.1.219:8333
- ELECTRS_ELECTRUM_RPC_ADDR=192.168.1.223:50001
- ELECTRS_LOG_FILTERS=INFO
- ELECTRS_DB_DIR=/home/electrs/db
- ELECTRS_VERBOSE_RPC_LOGS=true
- ELECTRS_IGNORE_MEMPOOL=true
- ELECTRS_TIMESTAMP_CACHE_CAPACITY=1000000 # Higher cache for faster lookups
- ELECTRS_INDEX_LOOKUP_LIMIT=10000
- ELECTRS_COOKIE_FILE=/home/btc-user/.bitcoin/btc.cookie
- ELECTRS_THREADS=4
- ELECTRS_DB_CACHE_SIZE=4096
volumes:
- electrs_db:/home/electrs/db
- bitcoin_volume:/home/btc-user/.bitcoin:ro # Mount same bitcoin data volume (read-only)
networks:
network:
ipv4_address: 192.168.1.223 # new IP in the same subnet
healthcheck:
test: ["CMD-SHELL", "timeout 5 bash -c 'echo > /dev/tcp/192.168.1.223/50001'"]
interval: 40s
timeout: 60s
retries: 45
depends_on:
bitcoin_service:
condition: service_healthy
My Setup:
Bitcoin Core runs as a full node with default (non-pruned) settings.
Electrs runs in Docker with the following environment:
ELECTRS_NETWORK=bitcoin
ELECTRS_DAEMON_RPC_ADDR=192.168.1.219:8332
ELECTRS_DAEMON_P2P_ADDR=192.168.1.219:8333
ELECTRS_ELECTRUM_RPC_ADDR=192.168.1.223:50001
ELECTRS_DB_DIR=/home/electrs/db
ELECTRS_TIMESTAMP_CACHE_CAPACITY=1000000
ELECTRS_INDEX_LOOKUP_LIMIT=10000
ELECTRS_THREADS=4
ELECTRS_DB_CACHE_SIZE=4096
Volumes: bitcoin data (read-only) and electrs DB (persistent)
Docker container has 4 threads and 4GB cache configured
Electrs and bitcoind are on the same local network.
Problem:
Despite this setup, querying a single, random address balance via Electrs takes about 900ms. This seems slow compared to other Electrum servers and my expectations for local, SSD-backed infrastructure.
Hardware Specs:
- CPU: AMD Ryzen 5 5600 3.5 GHz 6-Core Processor
- RAM: 16 GB (2 x 8GB) DDR4-3200
- Storage: Western Digital Blue SN580 2TB NVMe M.2 SSD (PCIe 4.0 x4)
- Motherboard: Gigabyte A520M K V2 Micro ATX AM4
- Network: 1GPS Download speed
Questions:
- Is this latency typical for Electrs on a Dockerized full node?
- Are there further optimizations I can make in my Docker or Electrs
configuration to reduce balance query times? - Is there any known bottleneck, either in RocksDB, disk I/O, or Docker networking, that
might cause this? - What are the typical response times others see for
similar setups?
Any insights or tuning suggestions from the community
would be greatly appreciated!
Thank you!
