nc-limits: added PHP threads and Redis mem limits

etc/nextcloudpi-config.d/nc-limits.sh

@@ -14,15 +14,38 @@
 # More at https://ownyourbits.com/2017/03/13/nextcloudpi-gets-nextcloudpi-config/
 #
 
-DESCRIPTION="Configure system limits for NextCloudPi"
 MAXFILESIZE_=2G
 MEMORYLIMIT_=768M
+PHPTHREADS_=0
+REDISMEM_=3gb
+
+DESCRIPTION="Configure system limits for NextCloudPi"
+INFO="Set PHP threads to 0 in order to use all cores"
 
 configure()
 {
   sed -i "s/post_max_size=.*/post_max_size=$MAXFILESIZE_/"             /var/www/nextcloud/.user.ini
   sed -i "s/upload_max_filesize=.*/upload_max_filesize=$MAXFILESIZE_/" /var/www/nextcloud/.user.ini
   sed -i "s/memory_limit=.*/memory_limit=$MEMORYLIMIT_/"               /var/www/nextcloud/.user.ini
+
+  # adjust max PHP processes so Apps don't overload the board (#146)
+  [[ $PHPTHREADS_ -eq 0 ]] && PHPTHREADS_=$( nproc ) && echo "Using $PHPTHREADS_ PHP threads"
+  sed -i "s|pm.max_children =.*|pm.max_children = $PHPTHREADS_|"           /etc/php/7.0/fpm/pool.d/www.conf
+  sed -i "s|pm.max_spare_servers =.*|pm.max_spare_servers = $PHPTHREADS_|" /etc/php/7.0/fpm/pool.d/www.conf
+  sed -i "s|pm.start_servers =.*|pm.start_servers = $PHPTHREADS_|"         /etc/php/7.0/fpm/pool.d/www.conf
+
+  # need to restart php
+  bash -c " sleep 3
+            systemctl stop php7.0-fpm
+            systemctl stop mysqld
+            sleep 0.5
+            systemctl start php7.0-fpm
+            systemctl start mysqld
+            " &>/dev/null &
+
+  # redis max memory
+  sed -i "s|maxmemory .*|maxmemory $REDISMEM_|" /etc/redis/redis.conf
+  systemctl restart redis
 }
 
 install() { :; }