distribution-engine

Indexing for Hive Engine Comments Smart Contract

Installation of packages for Ubuntu 18.04

sudo apt-get install postgresql postgresql-contrib python3-pip libicu-dev build-essential libssl-dev python3-dev git

# versioned python packages
sudo apt-get install python3.8-dev

Server

sudo apt install nginx ufw php7.2-fpm php7.2-pgsql

adminer (for UI access to manage postgres DB)

sudo mkdir /usr/share/adminer
sudo wget "https://www.adminer.org/latest.php" -O /usr/share/adminer/latest.php
sudo ln -s /usr/share/adminer/latest.php /usr/share/adminer/adminer.php
sudo ln -s /usr/share/adminer/adminer.php /var/www/html

Installation of python packages

General Warning: Be aware of which pip version is used. If straddling versions, you may have pip3, pip3.6, pip3.7. or use python3.x -m pip.

(Block streaming is using scot user)

sudo apt-get install -y python3-setuptools
sudo apt-get install -y python3.8-dev
python3.8 -m pip install wheel beem dataset psycopg2-binary steemengine base36 python-dateutil

(API on machine is using root to run gunicorn)

sudo su
python3.8 -m pip install gunicorn flask flask-cors flask-compress flask-caching prettytable pytz 
python3.8 -m pip install wheel beem dataset psycopg2-binary secp256k1prp steemengine base36 sqltap simplejson
python3 setup.py install

NOTE: In some cases, need --user setting for the module to be visible to the api server (if running official setup), e.g. sudo su; python3.8 -m pip install --user flask-compress flask-caching

Note the config cache directory (config.json), make sure that directory is set up and accessible.

/mem

sudo cp /etc/fstab /etc/fstab.orig
sudo mkdir /mem
echo 'tmpfs       /mem tmpfs defaults,size=64m,mode=1777,noatime,comment=for-gunicorn 0 0' | sudo tee -a /etc/fstab
sudo mount /mem

Create engine user

adduser engine

Setup of the postgresql database

Set a password and a user for the postgres database:

su postgres
psql -c "\password"
createdb engine

Prepare the postgres database

psql -d engine -a -f sql/engine.sql

Config file for accessing the database and engine rpc

A config.json file must be stored in the main directory and in the homepage directory where the app.py file is.

{
        "engine_api": "https://api2.hive-engine.com/rpc/",
        "engine_id": "ssc-mainnet-hive",
        "apiCacheDir": "/tmp/scotcache"
        "databaseConnector": "postgresql://postgres:password@localhost/engine",
}

Also create /tmp/scotcache

mkdir /tmp/scotcache

Running the scripts

When running for the first time, set the last_streamed_block of the HIVED configuration entry and the last_engine_streamed_block of the ENGINE_SIDECHAIN configuration entry to the hive block and hive engine sidechain block, respectively, where your SMT was introduced.

Run the following with your process manager of choice (e.g. pm2)

./run-engine-sc.sh
./run-engine.sh
(dev) ./run-api-server.sh
(prod) ./run-prod-api-server.sh