postgresql: dynamic memory configuration

2017-05-20 00:23:21 +02:00 · 2017-05-20 00:23:21 +02:00 · 283953a69f
parent 27e9eaba55
commit 283953a69f
2 changed files with 4 additions and 2 deletions
--- a/postgresql/defaults/main.yml
+++ b/postgresql/defaults/main.yml
@ -3,10 +3,10 @@
 postgresql_databases: []

 # Tuning
-postgresql_shared_buffers: 4GB
+postgresql_shared_buffers: "{{ (ansible_memtotal_mb * 0.25) | int }}MB"
 postgresql_work_mem: 8MB
 postgresql_random_page_cost: 1.5
-postgresql_effective_cache_size: 14GB
+postgresql_effective_cache_size: "{{ (ansible_memtotal_mb * 0.5) | int }}MB"

 # PostgreSQL version
 postgresql_version: '9.4'
--- a/postgresql/tasks/config.yml
+++ b/postgresql/tasks/config.yml
@ -21,3 +21,5 @@
    group: postgres
    mode: "0644"
  notify: restart postgresql
+
+- meta: flush_handlers