[Monit] Change the monitoring period from 120 seconds to 60 seconds. (#…

…3974)

* [Monit] Change the monitoring period of monit from 120 seconds to 60
seconds and also at the same time double the interval for existing sonic monit config file in
host.

Signed-off-by: Yong Zhao <yozhao@microsoft.com>

files/image_config/monit/conf.d/sonic-host

@@ -6,17 +6,17 @@
 ###############################################################################
 
 check filesystem root-overlay with path /
-    if space usage > 90% for 5 times within 10 cycles then alert
+    if space usage > 90% for 10 times within 20 cycles then alert
 
 check filesystem var-log with path /var/log
-    if space usage > 90% for 5 times within 10 cycles then alert
+    if space usage > 90% for 10 times within 20 cycles then alert
 
 check system $HOST
-    if memory usage > 90% for 5 times within 10 cycles then alert
-    if cpu usage (user) > 90% for 5 times within 10 cycles then alert
-    if cpu usage (system) > 90% for 5 times within 10 cycles then alert
+    if memory usage > 90% for 10 times within 20 cycles then alert
+    if cpu usage (user) > 90% for 10 times within 20 cycles then alert
+    if cpu usage (system) > 90% for 10 times within 20 cycles then alert
 
 check process rsyslog with pidfile /var/run/rsyslogd.pid
     start program = "/bin/systemctl start rsyslog.service"
     stop program = "/bin/systemctl stop rsyslog.service"
-    if totalmem > 800 MB for 5 times within 10 cycles then restart
+    if totalmem > 800 MB for 10 times within 20 cycles then restart

files/image_config/monit/monitrc

@@ -16,7 +16,7 @@
 ##
 ## Start Monit in the background (run as a daemon):
 #
-  set daemon 120            # check services at 2-minute intervals
+  set daemon 60             # check services at 1-minute intervals
 #   with start delay 240    # optional: delay the first check by 4-minutes (by
 #                           # default Monit check immediately after Monit start)
 #