add log output for growi:lib:search

config/logger/config.dev.js

@@ -11,6 +11,7 @@ module.exports = {
   // 'growi:routes:login': 'debug',
   'growi:routes:login-passport': 'debug',
   'growi:service:PassportService': 'debug',
+  'growi:lib:search': 'debug',
   // 'growi:service:GlobalNotification': 'debug',
   // 'growi:lib:importer': 'debug',
   // 'growi:routes:page': 'debug',

src/server/util/search.js

@@ -351,11 +351,14 @@ SearchClient.prototype.search = async function(query) {
         query: query.body.query
       },
     });
-    logger.info('ES returns explanations: ', result.explanations);
+    logger.debug('ES returns explanations: ', result.explanations);
   }
 
   const result = await this.client.search(query);
 
+  // for debug
+  logger.debug('ES result: ', result);
+
   return {
     meta: {
       took: result.took,