2-node env for tests-and-benchmarks#20

Author: NikolayS

inventory

@@ -7,25 +7,19 @@
 
 # if dcs_exists: false and dcs_type: "etcd" (in vars/main.yml)
 [etcd_cluster]  # recommendation: 3 or 5-7 nodes
-10.128.64.140
-10.128.64.142
-10.128.64.143
-
+172.31.14.220
+172.31.1.229
 
 # if with_haproxy_load_balancing: true (in vars/main.yml)
 [balancers]
-10.128.64.140
-10.128.64.142
-10.128.64.143
 
 
 # PostgreSQL nodes
 [master]
-10.128.64.140 hostname=pgnode01 postgresql_exists='false'
+172.31.14.220 hostname=pgnode01 postgresql_exists='false'
 
 [replica]
-10.128.64.142 hostname=pgnode02 postgresql_exists='false'
-10.128.64.143 hostname=pgnode03 postgresql_exists='false'
+172.31.1.229 hostname=pgnode02 postgresql_exists='false'
 
 [postgres_cluster:children]
 master
@@ -44,12 +38,12 @@ replica
 [all:vars]
 ansible_connection='ssh'
 ansible_ssh_port='22'
-ansible_user='root'
-ansible_ssh_pass='secretpassword'  # "sshpass" package is required for use "ansible_ssh_pass"
+ansible_user='ubuntu'
+#ansible_ssh_pass='secretpassword'  # "sshpass" package is required for use "ansible_ssh_pass"
 # ansible_ssh_private_key_file=
 # ansible_python_interpreter='/usr/bin/python3'  # is required for use python3
 
 [pgbackrest:vars]
-ansible_user='postgres'
-ansible_ssh_pass='secretpassword'
+#ansible_user='postgres'
+#ansible_ssh_pass='postgres'
 

vars/Debian.yml

@@ -48,12 +48,19 @@ system_packages:
   - jq
   - iptables
   - acl
+  - moreutils
+  - libpq-dev
+  - linux-tools-common
+  - linux-tools-5.4.0-1045-aws # ubuntu 20.04
 
 postgresql_packages:
   - postgresql-{{ postgresql_version }}
   - postgresql-client-{{ postgresql_version }}
   - postgresql-server-dev-{{ postgresql_version }}
   - postgresql-contrib-{{ postgresql_version }}
+  - postgresql-{{ postgresql_version }}-pg-wait-sampling
+  - postgresql-{{ postgresql_version }}-pg-stat-kcache
+  - postgresql-{{ postgresql_version }}-dbgsym
 #  - postgresql-{{ postgresql_version }}-repack"
 
 # Extra packages

vars/main.yml

@@ -101,19 +101,19 @@ postgresql_extensions: []
 
 # postgresql parameters to bootstrap dcs (are parameters for example)
 postgresql_parameters:
-  - {option: "max_connections", value: "100"}
+  - {option: "max_connections", value: "300"}
   - {option: "superuser_reserved_connections", value: "5"}
   - {option: "max_locks_per_transaction", value: "64"}  # raise this value (ex. 512) if you have queries that touch many different tables (partitioning)
   - {option: "max_prepared_transactions", value: "0"}
   - {option: "huge_pages", value: "try"}  # or "on" if you set "vm_nr_hugepages" in kernel parameters
-  - {option: "shared_buffers", value: "512MB"}  # please change this value
+  - {option: "shared_buffers", value: "20GB"}  # please change this value
   - {option: "work_mem", value: "128MB"}  # please change this value
   - {option: "maintenance_work_mem", value: "256MB"}  # please change this value
-  - {option: "effective_cache_size", value: "4GB"}  # please change this value
-  - {option: "checkpoint_timeout", value: "15min"}
+  - {option: "effective_cache_size", value: "40GB"}  # please change this value
+  - {option: "checkpoint_timeout", value: "30min"}
   - {option: "checkpoint_completion_target", value: "0.9"}
   - {option: "min_wal_size", value: "2GB"}  # for PostgreSQL 9.5 and above (for 9.4 use "checkpoint_segments")
-  - {option: "max_wal_size", value: "4GB"}  # for PostgreSQL 9.5 and above (for 9.4 use "checkpoint_segments")
+  - {option: "max_wal_size", value: "64GB"}  # for PostgreSQL 9.5 and above (for 9.4 use "checkpoint_segments")
   - {option: "wal_buffers", value: "32MB"}
   - {option: "default_statistics_target", value: "1000"}
   - {option: "seq_page_cost", value: "1"}
@@ -133,13 +133,14 @@ postgresql_parameters:
   - {option: "archive_command", value: "cd ."}  # not doing anything yet with WAL-s
 #  - {option: "archive_command", value: "wal-g wal-push %p"}  # archive WAL-s using WAL-G
 #  - {option: "archive_command", value: "pgbackrest --stanza={{ pgbackrest_stanza }} archive-push %p"}  # archive WAL-s using pgbackrest
-  - {option: "wal_level", value: "replica"}  # "replica" for PostgreSQL 9.6 and above (for 9.4, 9.5 use "hot_standby")
+  - {option: "wal_level", value: "logical"}  # "replica" for PostgreSQL 9.6 and above (for 9.4, 9.5 use "hot_standby")
   - {option: "wal_keep_segments", value: "130"}
+  - {option: "wal_compression", value: "on"}
   - {option: "max_wal_senders", value: "10"}
   - {option: "max_replication_slots", value: "10"}
   - {option: "hot_standby", value: "on"}
   - {option: "wal_log_hints", value: "on"}
-  - {option: "shared_preload_libraries", value: "pg_stat_statements,auto_explain"}
+  - {option: "shared_preload_libraries", value: "pg_stat_statements,pg_stat_kcache,pg_wait_sampling"}
   - {option: "pg_stat_statements.max", value: "10000"}
   - {option: "pg_stat_statements.track", value: "all"}
   - {option: "pg_stat_statements.save", value: "off"}

vars/system.yml

@@ -32,7 +32,7 @@ locale: "en_US.utf-8"
 
 
 # Kernel parameters
-sysctl_set: true  # or 'false'
+sysctl_set: false  # or 'false'
 # these parameters for example! Specify kernel options for your system
 sysctl_conf:
   etcd_cluster: []
@@ -117,7 +117,7 @@ sudo_users:
 
 
 # Firewall (ansible-role-firewall)
-firewall_enabled_at_boot: true
+firewall_enabled_at_boot: false
 
 firewall_allowed_tcp_ports_for:
   master: []