Make NUMA optional

Author: boutetnico

README.md

@@ -48,6 +48,9 @@ mongodb_manage_systemd_unit: true
 # Disable transparent hugepages on systemd debian based installations
 mongodb_disable_transparent_hugepages: false
 
+# You can enable or disable NUMA support
+mongodb_use_numa: true
+
 mongodb_user: "{{ 'mongod' if ('RedHat' == ansible_os_family) else 'mongodb' }}"
 mongodb_uid:
 mongodb_gid:

defaults/main.yml

@@ -21,6 +21,8 @@ mongodb_systemd_unit_limit_nproc: 64000
 
 mongodb_disable_transparent_hugepages: false
 
+mongodb_use_numa: true
+
 mongodb_user: "{{ 'mongod' if ('RedHat' == ansible_os_family) else 'mongodb' }}"
 mongodb_uid:
 mongodb_gid:

tasks/install.amazon.yml

@@ -24,6 +24,7 @@
     name: numactl
     state: present
     lock_timeout: "{{ yum_lock_timeout }}"
+  when: mongodb_use_numa | bool
 
 - name: Install PyMongo package
   yum:

tasks/install.debian.yml

@@ -57,6 +57,7 @@
   apt:
     name: numactl
     state: present
+  when: mongodb_use_numa | bool
 
 - name: Add systemd configuration if present
   template:

tasks/install.redhat.yml

@@ -30,6 +30,7 @@
     name: numactl
     state: present
     lock_timeout: "{{ yum_lock_timeout }}"
+  when: mongodb_use_numa | bool
 
 - name: Install PyMongo package
   yum:

templates/mongodb.service.j2

@@ -5,7 +5,11 @@ Documentation=man:mongod(1)
 
 [Service]
 User={{ mongodb_user }}
+{% if mongodb_use_numa | bool %}
 ExecStart=/usr/bin/numactl --interleave=all /usr/bin/mongod --config /etc/mongod.conf
+{% else %}
+ExecStart=/usr/bin/mongod --config /etc/mongod.conf
+{% endif %}
 # file size
 LimitFSIZE=infinity
 # cpu time