pool.dero.io Dero pool source for mining Dero.
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Usage

Requirements

Seriously

Those are legitimate requirements. If you use old versions of Node.js or Redis that may come with your system package manager then you will have problems. Follow the linked instructions to get the last stable versions.

Redis security warning: be sure firewall access to redis - an easy way is to include bind 127.0.0.1 in your redis.conf file. Also it’s a good idea to learn about and understand software that you are using - a good place to start with redis is data persistence.

Easy install on Ubuntu 14 LTS

Installing pool on different Linux distributives is different because it depends on system default components and versions. For now the easiest way to install pool is to use Ubuntu 14 LTS. Thus, all you had to do in order to prepare Ubunty 14 for pool installation is to run:

sudo apt-get install git redis-server libboost1.55-all-dev nodejs-dev nodejs-legacy npm cmake libssl-dev

1) Downloading & Installing

Clone the repository and run npm update for all the dependencies to be installed:

git clone https://github.com/SadBatman/cryptonote-sumokoin-pool.git pool
cd pool
npm update

2) Configuration

Explanation for each field:

/* Used for storage in redis so multiple coins can share the same redis instance. */
"coin": "Sumokoin",

/* Used for front-end display */
"symbol": "SUMO",

/* Minimum units in a single coin, see COIN constant in DAEMON_CODE/src/cryptonote_config.h */
"coinUnits": 1000000000,

/* Coin network time to mine one block, see DIFFICULTY_TARGET constant in DAEMON_CODE/src/cryptonote_config.h */
"coinDifficultyTarget": 60,

"logging": {

    "files": {

        /* Specifies the level of log output verbosity. This level and anything
           more severe will be logged. Options are: info, warn, or error. */
        "level": "info",

        /* Directory where to write log files. */
        "directory": "logs",

        /* How often (in seconds) to append/flush data to the log files. */
        "flushInterval": 5
    },

    "console": {
        "level": "debug",
        /* Gives console output useful colors. If you direct that output to a log file
           then disable this feature to avoid nasty characters in the file. */
        "colors": true
    }
},

/* Modular Pool Server */
"poolServer": {
    "enabled": true,

    /* Set to "auto" by default which will spawn one process/fork/worker for each CPU
       core in your system. Each of these workers will run a separate instance of your
       pool(s), and the kernel will load balance miners using these forks. Optionally,
       the 'forks' field can be a number for how many forks will be spawned. */
    "clusterForks": "auto",

    /* Address where block rewards go, and miner payments come from. */
    "poolAddress": "Sumoo64zh7dRFyB8dgDWZMLmzKBgGXYWZCG4NBF2VcvzEuiSQpMjyyiYJ1Ra696pZu56PPFQNBDdB1rZjyeX1RVKeWZgHg7pTxj"

    /* Poll RPC daemons for new blocks every this many milliseconds. */
    "blockRefreshInterval": 1000,

    /* How many seconds until we consider a miner disconnected. */
    "minerTimeout": 900,

    /* These cryptonote address prefixes are used to check whether the
       miner supplied a valid address. The values below are for sumokoin
       wallet and subaddresses. If you use a different coin than you must
       update the values here. */
    "allowedMinerAddressPrefixes": [
      "2864026", "536986"
    ],

    "ports": [
        {
            "port": 3333, //Port for mining apps to connect to
            "difficulty": 5000, //Initial difficulty miners are set to
            "desc": "Low end hardware" //Description of port
        },
        {
            "port": 3334,
            "difficulty": 10000,
            "desc": "Mid range hardware"
        },
        {
            "port": 3335,
            "difficulty": 20000,
            "desc": "High end hardware"
        },
        {
            "port": 3336,
            "difficulty": 20000,
            "desc": "High end hardware (SSL protected)",
            /* When you enable SSL; the server expects that you put the
               SSL key and cert as the files "key.pem" and "cert.pem" into the
               directory from which you run the pool server. /*
            "type": "SSL"
        }
    ],

    /* Variable difficulty is a feature that will automatically adjust difficulty for
       individual miners based on their hashrate in order to lower networking and CPU
       overhead. */
    "varDiff": {
        "minDiff": 500, //Minimum difficulty
        "maxDiff": 50000,
        "targetTime": 100, //Try to get 1 share per this many seconds
        "retargetTime": 30, //Check to see if we should retarget every this many seconds
        "variancePercent": 30, //Allow time to very this % from target without retargeting
        "maxJump": 100 //Limit diff percent increase/decrease in a single retargetting
    },

    /* Set difficulty on miner client side by passing <address> param with .<difficulty> postfix
       minerd -u Sumoo64zh7dRFyB8dgDWZMLmzKBgGXYWZCG4NBF2VcvzEuiSQpMjyyiYJ1Ra696pZu56PPFQNBDdB1rZjyeX1RVKeWZgHg7pTxj.5000 */
    "fixedDiff": {
        "enabled": true,
        "separator": ".", // character separator between <address> and <difficulty>
    },

    /* Feature to trust share difficulties from miners which can
       significantly reduce CPU load. */
    "shareTrust": {
        "enabled": true,
        "min": 10, //Minimum percent probability for share hashing
        "stepDown": 3, //Increase trust probability % this much with each valid share
        "threshold": 10, //Amount of valid shares required before trusting begins
        "penalty": 30 //Upon breaking trust require this many valid share before trusting
    },

    /* If under low-diff share attack we can ban their IP to reduce system/network load. */
    "banning": {
        "enabled": true,
        "time": 600, //How many seconds to ban worker for
        "invalidPercent": 25, //What percent of invalid shares triggers ban
        "checkThreshold": 30 //Perform check when this many shares have been submitted
    }
},

/* Module that sends payments to miners according to their submitted shares. */
"payments": {
    "enabled": true,
    "interval": 600, //how often to run in seconds
    "maxAddresses": 10, //split up payments if sending to more than this many addresses
    "mixin": 12, //number of transactions yours is indistinguishable from
    "transferFee": 10000000, //fee to pay for each transaction, deducted from pool owner's balance
    "minPayment": 2000000000, //miner balance required before sending payment
    "maxTransactionAmount": 500000000000, //split transactions by this amount(to prevent "too big transaction" error)
    "denomination": 10000000, //truncate to this precision and store remainder
  	"useDynamicTransferFee": true, // use (simple) dynamic transfer fee
  	"transferFeePerPayee": 4000000, // dynamic transfer fee per payee/transaction
  	"minerPayFee": true, // miner pays (dynamic) transfer fee instead of pool owner
    // When the block reward is a non-zero value; it will be used to provide a
    // payout estimate in the miner statistics.
    "blockReward": 0
},

/* Module that monitors the submitted block maturities and manages rounds. Confirmed
   blocks mark the end of a round where workers' balances are increased in proportion
   to their shares. */
"blockUnlocker": {
    "enabled": true,
    "interval": 30, //how often to check block statuses in seconds

    /* Block depth required for a block to unlocked/mature. Found in daemon source as
       the variable CRYPTONOTE_MINED_MONEY_UNLOCK_WINDOW */
    "depth": 60,
    "poolFee": 1.8, //1.8% pool fee (2% total fee total including donations)
    "devDonation": 0.1, //0.1% donation to send to pool dev - only works with Monero
    "coreDevDonation": 0.1 //0.1% donation to send to core devs - works with Bytecoin, Monero, Dashcoin, QuarazCoin, Fantoncoin, AEON, Sumokoin, OneEvilCoin
},

/* AJAX API used for front-end website. */
"api": {
    "enabled": true,
    "hashrateWindow": 600, //how many second worth of shares used to estimate hash rate
    "updateInterval": 3, //gather stats and broadcast every this many seconds
    "port": 8117,
    "blocks": 30, //amount of blocks to send at a time
    "payments": 30, //amount of payments to send at a time
    "password": "test" //password required for admin stats
    "trust_proxy_ip": false //trust the X-Forwarded-For header to set the client IP. This should be used in combination with reverse proxies.
},

/* Coin daemon connection details. */
"daemon": {
    "host": "127.0.0.1",
    "port": 19734
},

/* Wallet daemon connection details. */
"wallet": {
    "host": "127.0.0.1",
    "port": 19735
},

/* Redis connection into. */
"redis": {
    "host": "127.0.0.1",
    "port": 6379
}

/* Email configuration */
"email": {
  "enabled": false,
  "api_key": "",                 // Your Mailgun.com API key.
  "api_domain": "mg.yourdomain", // The domain you registered at Mailgun.
  "from_address": "",            // The email address to which users can reply.
  "template_dir": "email_templates",
  "domain": "pool.domain.here"   // Used for links in the email.
},


/* Monitoring RPC services. Statistics will be displayed in Admin panel */
"monitoring": {
    "daemon": {
        "checkInterval": 60, //interval of sending rpcMethod request
        "rpcMethod": "getblockcount" //RPC method name
    },
    "wallet": {
        "checkInterval": 60,
        "rpcMethod": "getbalance"
    }

/* Collect pool statistics to display in frontend charts  */
"charts": {
    "pool": {
        "hashrate": {
            "enabled": true, //enable data collection and chart displaying in frontend
            "updateInterval": 60, //how often to get current value
            "stepInterval": 1800, //chart step interval calculated as average of all updated values
            "maximumPeriod": 86400 //chart maximum periods (chart points number = maximumPeriod / stepInterval = 48)
        },
        "workers": {
            "enabled": true,
            "updateInterval": 60,
            "stepInterval": 1800, //chart step interval calculated as maximum of all updated values
            "maximumPeriod": 86400
        },
        "difficulty": {
            "enabled": true,
            "updateInterval": 1800,
            "stepInterval": 10800,
            "maximumPeriod": 604800
        },
        "price": { //USD price of one currency coin received from cryptonator.com/api
            "enabled": true,
            "updateInterval": 1800,
            "stepInterval": 10800,
            "maximumPeriod": 604800
        },
        "profit": { //Reward * Rate / Difficulty
            "enabled": true,
            "updateInterval": 1800,
            "stepInterval": 10800,
            "maximumPeriod": 604800
        }
    },
    "user": { //chart data displayed in user stats block
        "hashrate": {
            "enabled": true,
            "updateInterval": 180,
            "stepInterval": 1800,
            "maximumPeriod": 86400
        },
        "payments": { //payment chart uses all user payments data stored in DB
            "enabled": true
        }
    }

3) Start the pool

First make sure that the sumokoind and sumo-wallet-rpc daemons are running:

./sumokoind --detach
./sumo-wallet-rpc --wallet-file=<wallet name> --rpc-bind-port <wallet port>

When both are running it’s worth to make sure the sumokoind has it’s blockchain synced. If this is not the case your pool will show errors with “Core is busy” until sumokoind is synchronized.

node init.js

The file config.json is used by default but a file can be specified using the -config=file command argument, for example:

node init.js -config=config_sumokoin.json

This software contains four distinct modules:

  • pool - Which opens ports for miners to connect and processes shares
  • api - Used by the website to display network, pool and miners’ data
  • unlocker - Processes block candidates and increases miners’ balances when blocks are unlocked
  • payments - Sends out payments to miners according to their balances stored in redis

By default, running the init.js script will start up all four modules. You can optionally have the script start only start a specific module by using the -module=name command argument, for example:

node init.js -module=api

Example screenshot of running the pool in single module mode with tmux.

4) Host the front-end

Simply host the contents of the website_example directory on file server capable of serving simple static files.

Edit the variables in the website_example/config.js file to use your pool’s specific configuration. Variable explanations:


/* Must point to the API setup in your config.json file. */
var api = "http://poolhost:8117";

/* Pool server host to instruct your miners to point to.  */
var poolHost = "poolhost.com";

/* IRC Server and room used for embedded KiwiIRC chat. */
var irc = "irc.freenode.net/#sumokoin";

/* Contact email address. */
var email = "support@poolhost.com";

/* Market stat display params from https://www.cryptonator.com/widget */
var cryptonatorWidget = ["SUMO-BTC", "SUMO-USD", "SUMO-EUR"];

/* Download link to cryptonote-easy-miner for Windows users. */
var easyminerDownload = "https://github.com/zone117x/cryptonote-easy-miner/releases/";

/* Used for front-end block links. */
var blockchainExplorer = "http://chainradar.com/{symbol}/block/{id}";

/* Used by front-end transaction links. */
var transactionExplorer = "http://chainradar.com/{symbol}/transaction/{id}";

/* Any custom CSS theme for pool frontend */
var themeCss = "themes/default-theme.css";

6) Customize your website

The following files are included so that you can customize your pool website without having to make significant changes to index.html or other front-end files thus reducing the difficulty of merging updates with your own changes:

  • custom.css for creating your own pool style
  • custom.js for changing the functionality of your pool website

Then simply serve the files via nginx, Apache, Google Drive, or anything that can host static content.

Upgrading

When updating to the latest code its important to not only git pull the latest from this repo, but to also update the Node.js modules, and any config files that may have been changed.

  • Inside your pool directory (where the init.js script is) do git pull to get the latest code.
  • Remove the dependencies by deleting the node_modules directory with rm -r node_modules.
  • Run npm update to force updating/reinstalling of the dependencies.
  • Compare your config.json to the latest example ones in this repo or the ones in the setup instructions where each config field is explained. You may need to modify or add any new changes.

Setting up Testnet

Sumokoin does have a testnet. Call daemon and simplewallet with --tesnet to connect to it. Downloading the testnet blockchain may still take a while to start usint testnet, so you can use this excellent Monero tutorial, which also applies to Sumokoin, at http://moneroexamples.github.io/private-testnet/ to set up a private testnet.

For cryptonote based coins that don’t have a testnet mode (yet), you can effectively create a testnet with the following steps:

  • Open /src/p2p/net_node.inl and remove lines with ADD_HARDCODED_SEED_NODE to prevent it from connecting to mainnet (Monero example: http://git.io/0a12_Q)
  • Build the coin from source
  • You now need to run two instance of the daemon and connect them to each other (without a connection to another instance the daemon will not accept RPC requests)
    • Run first instance with ./coind --p2p-bind-port 28080 --allow-local-ip
    • Run second instance with ./coind --p2p-bind-port 5011 --rpc-bind-port 5010 --add-peer 0.0.0.0:28080 --allow-local-ip
  • You should now have a local testnet setup. The ports can be changes as long as the second instance is pointed to the first instance, obviously

Credit to surfer43 for these instructions

JSON-RPC Commands from CLI

Documentation for JSON-RPC commands can be found here:

Curl can be used to use the JSON-RPC commands from command-line. Here is an example of calling getblockheaderbyheight for block 100:

curl 127.0.0.1:18081/json_rpc -d '{"method":"getblockheaderbyheight","params":{"height":100}}'

Monitoring Your Pool

  • To inspect and make changes to redis I suggest using redis-commander
  • To monitor server load for CPU, Network, IO, etc - I suggest using New Relic
  • To keep your pool node script running in background, logging to file, and automatically restarting if it crashes - I suggest using forever