postgresql CI tests: fix timeouts (#598)

* postgresql CI tests: fix timeouts

* fix

ci_complete

tests/integration/targets/postgresql_slot/tasks/postgresql_slot_initial.yml

@@ -20,11 +20,28 @@
     name: wal_level
     value: logical
 
-- name: postgresql_slot - restart PostgreSQL
+# To avoid CI timeouts
+- name: Kill all postgres processes
+  shell: 'pkill -u {{ pg_user }}'
+  become: yes
+  when: ansible_facts.distribution == 'CentOS' and ansible_facts.distribution_major_version == '8'
+  ignore_errors: yes
+
+- name: postgresql_slot - stop PostgreSQL
   become: yes
   service:
     name: "{{ postgresql_service }}"
-    state: restarted
+    state: stopped
+
+- name: postgresql_slot - pause between stop and start PostgreSQL
+  pause:
+    seconds: 5
+
+- name: postgresql_slot - start PostgreSQL
+  become: yes
+  service:
+    name: "{{ postgresql_service }}"
+    state: started
 
 #
 # state=present