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# PoWA for PostgreSQL
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# https://powa.readthedocs.io
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##############################################################################
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# Install on PostgreSQL Servers
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# Using upstream postresql's repos, not Debian's repos.
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apt install postgresql-10-powa postgresql-10-pg-qualstats postgresql-10-pg-stat-kcache postgresql-10-hypopg
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# Add permissions for PoWA node
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# Configure postgres:
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vim /etc/postgresql/10/main/postgresql.conf
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# Change:
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# shared_preload_libraries to (keeping citus):
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shared_preload_libraries='citus,pg_stat_statements,powa,pg_stat_kcache,pg_qualstats'
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# Enable:
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track_io_timing = on
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# Create databases, run on each pg1 pg2 pg3 pg4 server:
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psql
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CREATE DATABASE powa ;
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\c powa
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CREATE EXTENSION pg_stat_statements;
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CREATE EXTENSION btree_gist;
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CREATE EXTENSION powa;
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CREATE EXTENSION pg_qualstats;
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CREATE EXTENSION pg_stat_kcache;
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CREATE EXTENSION hypopg;
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CREATE ROLE powa SUPERUSER LOGIN PASSWORD 'password' ;
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##############################################################################
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# Install on Web Node
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# Set up Debian Stretch node
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# Install postgres repos:
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echo 'deb http://apt.postgresql.org/pub/repos/apt/ stretch-pgdg main' > /etc/apt/sources.list.d/pgdg.list
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wget --quiet -O - https://www.postgresql.org/media/keys/ACCC4CF8.asc | sudo apt-key add -
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apt update
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apt dist-upgrade
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apt install postgresql-client-10
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# There isn't a package of powa-web for Debian.
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# Install dependencies:
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apt install python python-psycopg2 python-sqlalchemy python-tornado
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wget -O powa-web-3.1.4.tar.gz https://github.com/powa-team/powa-web/archive/3.1.4.tar.gz
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tar -zxvf powa-web-3.1.4.tar.gz
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cd powa-web-3.1.4
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# cp ./powa-web.conf-dist ./powa-web.conf
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cat > powa-web.conf <<EOF
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servers={
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'pg1': {
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'host': '10.52.1.91',
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'port': '5432',
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'database': 'powa',
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'query': {'client_encoding': 'utf8'}
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},
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'pg2': {
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'host': '10.52.1.92',
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'port': '5432',
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'database': 'powa',
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'query': {'client_encoding': 'utf8'}
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},
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'pg3': {
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'host': '10.52.1.93',
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'port': '5432',
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'database': 'powa',
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'query': {'client_encoding': 'utf8'}
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},
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'pg4': {
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'host': '10.52.1.94',
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'port': '5432',
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'database': 'powa',
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'query': {'client_encoding': 'utf8'}
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}
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}
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cookie_secret="password"
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EOF
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./powa-web
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# XXX setup user, startup scripts, etc.
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# From git version: XXX fail:
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# Unable to connect: powa-archivist version 3.1.X does not match powa-web version 3.2.X
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git clone https://github.com/powa-team/powa-web
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# Last version from git to work with 3.1.X:
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cd powa-web
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git checkout a14a85b3b29ae1d68c20e7394e4214d318a948f3
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./powa-web
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##############################################################################
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# Admin Web Client
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# On workstation create tunnel:
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ssh -N -C -L 58888:localhost:8888 powa
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# On workstation, in browser, login user 'powa' with powa's postgres password.
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http://localhost:58888/
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##############################################################################
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