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Installation

Install latest Rust (1.34+), latest Bitcoin Core (0.16+).

Also, install the following packages (on Debian):

$ sudo apt update
$ sudo apt install clang cmake  # for building 'rust-rocksdb'

Build

First build should take ~20 minutes:

$ git clone https://github.com/Samourai-Wallet/addrindexrs
$ cd addrindexrs
$ cargo build --release

Bitcoind configuration

Allow Bitcoin daemon to sync before starting the indexer. The indexer requires that bitcoin daemon isn't pruned and maintains a txindex.

$ bitcoind -server=1 -txindex=1 -prune=0

If you are using -rpcuser=USER and -rpcpassword=PASSWORD for authentication, please use cookie="USER:PASSWORD" option in one of the config files. Otherwise, ~/.bitcoin/.cookie will be read, allowing this server to use bitcoind JSONRPC interface.

Usage

First index sync should take ~1.5 hours (on a dual core Intel CPU @ 3.3 GHz, 8 GB RAM, 1TB WD Blue HDD):

$ cargo run --release -- -vvv --timestamp --db-dir ./db --indexer-rpc-addr="127.0.0.1:50001"
2018-08-17T18:27:42 - INFO - NetworkInfo { version: 179900, subversion: "/Satoshi:0.17.99/" }
2018-08-17T18:27:42 - INFO - BlockchainInfo { chain: "main", blocks: 537204, headers: 537204, bestblockhash: "0000000000000000002956768ca9421a8ddf4e53b1d81e429bd0125a383e3636", pruned: false, initialblockdownload: false }
2018-08-17T18:27:42 - DEBUG - opening DB at "./db/mainnet"
2018-08-17T18:27:42 - DEBUG - full compaction marker: None
2018-08-17T18:27:42 - INFO - listing block files at "/home/user/.bitcoin/blocks/blk*.dat"
2018-08-17T18:27:42 - INFO - indexing 1348 blk*.dat files
2018-08-17T18:27:42 - DEBUG - found 0 indexed blocks
2018-08-17T18:27:55 - DEBUG - applying 537205 new headers from height 0
2018-08-17T19:31:01 - DEBUG - no more blocks to index
2018-08-17T19:31:03 - DEBUG - no more blocks to index
2018-08-17T19:31:03 - DEBUG - last indexed block: best=0000000000000000002956768ca9421a8ddf4e53b1d81e429bd0125a383e3636 height=537204 @ 2018-08-17T15:24:02Z
2018-08-17T19:31:05 - DEBUG - opening DB at "./db/mainnet"
2018-08-17T19:31:06 - INFO - starting full compaction
2018-08-17T19:58:19 - INFO - finished full compaction
2018-08-17T19:58:19 - INFO - enabling auto-compactions
2018-08-17T19:58:19 - DEBUG - opening DB at "./db/mainnet"
2018-08-17T19:58:26 - DEBUG - applying 537205 new headers from height 0
2018-08-17T19:58:27 - DEBUG - downloading new block headers (537205 already indexed) from 000000000000000000150d26fcc38b8c3b71ae074028d1d50949ef5aa429da00
2018-08-17T19:58:27 - INFO - best=000000000000000000150d26fcc38b8c3b71ae074028d1d50949ef5aa429da00 height=537218 @ 2018-08-17T16:57:50Z (14 left to index)
2018-08-17T19:58:28 - DEBUG - applying 14 new headers from height 537205
2018-08-17T19:58:29 - INFO - RPC server running on 127.0.0.1:50001

You can specify options via command-line parameters, environment variables or using config files. See the documentation below.

Note that the final DB size should be ~20% of the blk*.dat files, but it may increase to ~35% at the end of the inital sync (just before the full compaction is invoked).

If initial sync fails due to memory allocation of xxxxxxxx bytes failedAborted errors, as may happen on devices with limited RAM, try the following arguments when starting addrindexrs. It should take roughly 18 hours to sync and compact the index on an ODROID-HC1 with 8 CPU cores @ 2GHz, 2GB RAM, and an SSD using the following command:

$ cargo run --release -- -vvvv --index-batch-size=10 --jsonrpc-import --db-dir ./db --indexer-rpc-addr="127.0.0.1:50001"

The index database is stored here:

$ du db/
38G db/mainnet/

Configuration files and environment variables

The config files must be in the Toml format. These config files are (from lowest priority to highest): /etc/addrindexrs/config.toml, ~/.addrindexrs/config.toml, ./addrindexrs.toml.

The options in highest-priority config files override options set in lowest-priority config files. Environment variables override options in config files and finally arguments override everythig else.

For each argument an environment variable of the same name with ADDRINDEXRS_ prefix, upper case letters and underscores instead of hypens exists (e.g. you can use ADDRINDEXRS_INDEXER_RPC_ADDR instead of --indexer-rpc-addr). Similarly, for each argument an option in config file exists with underscores instead o hypens (e.g. indexer_rpc_addr).

Finally, you need to use a number in config file if you want to increase verbosity (e.g. verbose = 3 is equivalent to -vvv) and true value in case of flags (e.g. timestamp = true)

SSL connection

In order to use a secure connection, you can also use NGINX as an SSL endpoint by placing the following block in nginx.conf.

stream {
        upstream addrindexrs {
                server 127.0.0.1:50001;
        }

        server {
                listen 50002 ssl;
                proxy_pass addrindexrs;

                ssl_certificate /path/to/example.crt;
                ssl_certificate_key /path/to/example.key;
                ssl_session_cache shared:SSL:1m;
                ssl_session_timeout 4h;
                ssl_protocols TLSv1 TLSv1.1 TLSv1.2 TLSv1.3;
                ssl_prefer_server_ciphers on;
        }
}
$ sudo systemctl restart nginx

Note: You can obtain a free SSL certificate as follows:

  1. Follow the instructions at https://certbot.eff.org/ to install the certbot on your system.
  2. When certbot obtains the SSL certificates for you, change the SSL paths in the nginx template above as follows:
ssl_certificate /etc/letsencrypt/live/<your-domain>/fullchain.pem;
ssl_certificate_key /etc/letsencrypt/live/<your-domain>/privkey.pem;

Tor hidden service

Install Tor on your server and client machines (assuming Ubuntu/Debian):

$ sudo apt install tor

Add the following config to /etc/tor/torrc:

HiddenServiceDir /var/lib/tor/hidden_service/
HiddenServiceVersion 3
HiddenServicePort 50001 127.0.0.1:50001

Restart the service:

$ sudo systemctl restart tor

Note: your server's onion address is stored under:

$ sudo cat /var/lib/tor/hidden_service/hostname
<your-onion-address>.onion

For more details, see http://docs.electrum.org/en/latest/tor.html.

Sample Systemd Unit File

You may wish to have systemd manage addrindexrs so that it's "always on." Here is a sample unit file (which assumes that the bitcoind unit file is bitcoind.service):

[Unit]
Description=addrindexrs
After=bitcoind.service

[Service]
WorkingDirectory=/home/bitcoin/addrindexrs
ExecStart=/home/bitcoin/addrindexrs/target/release/addrindexrs --db-dir ./db --indexer-rpc-addr="127.0.0.1:50001"
User=bitcoin
Group=bitcoin
Type=simple
KillMode=process
TimeoutSec=60
Restart=always
RestartSec=60

[Install]
WantedBy=multi-user.target