[config] add ops.interval config option

config/kibana.yml

@@ -79,3 +79,7 @@
 # Set the value of this setting to true to log all events, including system usage information
 # and all requests.
 # logging.verbose: false
+
+# Set the interval in milliseconds to sample system and process performance
+# metrics. Minimum is 100ms. Defaults to 10000.
+# ops.interval: 10000

docs/kibana-yml.asciidoc

@@ -39,3 +39,4 @@ retrying.
 error messages.
 `logging.verbose`:: *Default: false* Set the value of this setting to `true` to log all events, including system usage 
 information and all requests.
+`ops.interval`:: *Default: 10000* Set the interval in milliseconds to sample system and process performance metrics. Minimum is 100ms. Defaults to 10 seconds.

src/server/config/schema.js

@@ -81,6 +81,10 @@ module.exports = () => Joi.object({
   })
   .default(),
 
+  ops: Joi.object({
+    interval: Joi.number().default(10000),
+  }),
+
   plugins: Joi.object({
     paths: Joi.array().items(Joi.string()).default([]),
     scanDirs: Joi.array().items(Joi.string()).default([]),

src/server/logging/index.js

@@ -39,7 +39,7 @@ module.exports = function (kbnServer, server, config) {
     server.register({
       register: require('good'),
       options: {
-        opsInterval: 5000,
+        opsInterval: config.get('ops.interval'),
         requestHeaders: true,
         requestPayload: true,
         reporters: [