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bdr pg 11
See http://2ndquadrant.com/BDR and http://bdr-project.org/docs/ for documentation on the installation and use of BDR. BDR2 with postgresql 11 patches See INSTALL.src for compile from source. Install pkg: Add https://github.com/keenser/repo repo: ``` sudo apt-key adv --fetch-keys https://raw.githubusercontent.com/keenser/repo/master/PUBLIC.KEY echo 'deb http://keenser.github.io/repo stretch main' | sudo tee -a /etc/apt/sources.list.d/keenser.list sudo apt update sudo apt install postgresql-11 postgresql-11-bdr-pluglin ``` Sample usage: ``` #backup database before cluster drop if exists: /usr/lib/postgresql/11/bin/bdr_dump -p 5434 -N bdr radius > backup.sql pg_dropcluster 11 node1 --stop pg_dropcluster 11 node2 --stop rm -r /etc/postgresql/11/node1/conf.d/ rm -r /etc/postgresql/11/node2/conf.d/ pg_createcluster 11 node1 pg_createcluster 11 node2 pg_ctlcluster 11 node1 start pg_ctlcluster 11 node2 start psql -p 5434 -c 'create database radius' psql -p 5435 -c 'create database radius' cat <<EOF | tee /etc/postgresql/11/node1/conf.d/bdr.conf /etc/postgresql/11/node2/conf.d/bdr.conf shared_preload_libraries = 'bdr' bdr.trace_replay = on wal_level = 'logical' track_commit_timestamp = on max_replication_slots = 20 max_wal_senders = 10 EOF pg_ctlcluster 11 node1 restart pg_ctlcluster 11 node2 restart psql -p 5434 radius -c 'create extension bdr cascade' -c "SELECT bdr.bdr_group_create(local_node_name := 'node1', node_external_dsn := 'dbname=radius port=5434')" -c 'select bdr.bdr_node_join_wait_for_ready()' psql -p 5435 radius -c 'create extension bdr cascade' -c "SELECT bdr.bdr_group_join(local_node_name := 'node2', node_external_dsn := 'dbname=radius port=5435', join_using_dsn := 'dbname=radius port=5434')" -c 'select bdr.bdr_node_join_wait_for_ready()' #restore if any backup psql -p 5434 radius -1 -f backup.sql psql -p 5434 radius -c "CREATE TABLE IF NOT EXISTS test (id bigserial, name text)" -c "ALTER TABLE test ALTER COLUMN id SET DEFAULT bdr.global_seq_nextval('test_id_seq'::regclass)" psql -p 5434 radius -c "insert into test(name) values('foo')" psql -p 5435 radius -c "insert into test(name) values('bar')" psql -p 5434 radius -c 'select count(*) from test' psql -p 5435 radius -c 'select count(*) from test' ```
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