{"id":2937287,"date":"2025-08-26T08:37:34","date_gmt":"2025-08-26T15:37:34","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=2937287"},"modified":"2025-08-26T15:15:57","modified_gmt":"2025-08-26T22:15:57","slug":"arcgis-monitor-exploring-the-check-service-observer","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/monitor\/administration\/arcgis-monitor-exploring-the-check-service-observer","title":{"rendered":"ArcGIS Monitor: Exploring the Check-Service Observer"},"author":5481,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"_acf_changed":false,"_searchwp_excluded":""},"categories":[37501],"tags":[42301,42701,768212,780794,770992],"industry":[],"product":[36971],"class_list":["post-2937287","blog","type-blog","status-publish","format-standard","hentry","category-administration","tag-arcgis-enterprise","tag-arcgis-monitor","tag-enterprise-gis","tag-observability","tag-performance-monitoring","product-monitor"],"acf":{"short_description":"This blog discusses how to use the Check-Service observer in ArcGIS Monitor. ","flexible_content":[{"acf_fc_layout":"content","content":"

ArcGIS Monitor<\/a>\u00a0provides\u00a0observability<\/a>\u00a0into your ArcGIS Enterprise deployments by collecting metrics on the health, performance, and usage of your enterprise GIS. It is designed to help administrators and managers ensure their ArcGIS Enterprise deployments are working efficiently by reducing and preventing system downtime, resulting in operational cost savings.<\/p>\n

All enterprise GIS assets such as: enterprise portals, GIS Servers, services, geodatabases, and hosts become components<\/a> when they are registered with ArcGIS Monitor. Every component in Monitor has\u00a0observers<\/a>\u00a0which are responsible for collecting attribute and metric information about the component. Each component type has a unique set of observers that run at specified intervals. You can view the observers for a component by selecting the component on the\u00a0Monitoring\u00a0<\/em>page >\u00a0Observers<\/em>\u00a0subtab. For example, a service component in an ArcGIS Online organization has two observers: inventory<\/em> and metrics<\/em>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2937290,"id":2937290,"title":"Fig 1 - MonitorAug25","filename":"Fig-1-MonitorAug25.png","filesize":40697,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/monitor\/administration\/arcgis-monitor-exploring-the-check-service-observer\/fig-1-monitoraug25","alt":"","author":"5481","description":"","caption":"","name":"fig-1-monitoraug25","status":"inherit","uploaded_to":2937287,"date":"2025-08-26 14:38:02","modified":"2025-08-26 14:38:02","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":1421,"height":525,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25.png","medium-width":464,"medium-height":171,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25.png","medium_large-width":768,"medium_large-height":284,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25.png","large-width":1421,"large-height":525,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25.png","1536x1536-width":1421,"1536x1536-height":525,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25.png","2048x2048-width":1421,"2048x2048-height":525,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25-826x305.png","card_image-width":826,"card_image-height":305,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-1-MonitorAug25.png","wide_image-width":1421,"wide_image-height":525}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

You can learn more about the default observers for each component type in this help topic<\/a>.<\/p>\n

At the ArcGIS Monitor 2024.1 release, a Check-Service<\/em> observer<\/a> was introduced. This observer allows a Representational State Transfer (REST) request to be configured against a registered service component, which enables admins to apply requests to monitor a variety of scenarios. The observer sends the configured request and captures four metrics on a service component: check response code<\/em>, check response size<\/em>, check response matches <\/em>and check response time<\/em>. These \u2018response check\u2019 metrics can be helpful to admins for quantifying health and testing performance on Monitor service components.<\/p>\n

To enable the Check-Service<\/em> observer, under the Monitoring<\/em> page > select a service component > Observers<\/em> subtab. Click the Add observer<\/em> button to display the Add Observer<\/em> dialog. For Observer Type, select Check \u2013 Remote Service<\/em> and click Next<\/em>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2937291,"id":2937291,"title":"Fig 2 - MonitorAug25","filename":"Fig-2-MonitorAug25.png","filesize":24791,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/monitor\/administration\/arcgis-monitor-exploring-the-check-service-observer\/fig-2-monitoraug25","alt":"","author":"5481","description":"","caption":"","name":"fig-2-monitoraug25","status":"inherit","uploaded_to":2937287,"date":"2025-08-26 14:39:07","modified":"2025-08-26 14:39:07","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":763,"height":366,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","medium-width":464,"medium-height":223,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","medium_large-width":763,"medium_large-height":366,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","large-width":763,"large-height":366,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","1536x1536-width":763,"1536x1536-height":366,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","2048x2048-width":763,"2048x2048-height":366,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","card_image-width":763,"card_image-height":366,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-2-MonitorAug25.png","wide_image-width":763,"wide_image-height":366}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

Note:<\/strong> In the image above, the Add Observer<\/em> dialog displays Check \u2013 Remote Service <\/em>option, because an ArcGIS Online service component was selected, the behavior is the same for third party ArcGIS Server site service components. However, for an ArcGIS Server service component, the dialog would display a Check \u2013 Service <\/em>option.<\/p>\n

Provide a name and description for the new observer that will be added to the service component. Click Next<\/em>.<\/p>\n

In the Configuration panel of the Add Observer<\/em> dialog, this is where admins can configure different types of REST endpoint requests to apply to the registered service component. Typically, these would be applied to feature or map services. A comprehensive discussion on REST requests is beyond the scope of this blog, but you can learn more from the Query (Feature Service)<\/a> and Export Map<\/a> help topics, respectively from the Esri Developer site<\/a>.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2937293,"id":2937293,"title":"Fig 3 - MonitorAug25","filename":"Fig-3-MonitorAug25.png","filesize":28796,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/monitor\/administration\/arcgis-monitor-exploring-the-check-service-observer\/fig-3-monitoraug25","alt":"","author":"5481","description":"","caption":"","name":"fig-3-monitoraug25","status":"inherit","uploaded_to":2937287,"date":"2025-08-26 14:42:22","modified":"2025-08-26 14:42:22","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":764,"height":708,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25.png","medium-width":282,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25.png","medium_large-width":764,"medium_large-height":708,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25.png","large-width":764,"large-height":708,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25.png","1536x1536-width":764,"1536x1536-height":708,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25.png","2048x2048-width":764,"2048x2048-height":708,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25-502x465.png","card_image-width":502,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-3-MonitorAug25.png","wide_image-width":764,"wide_image-height":708}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

This blog will discuss three example use cases for using the Check-Service<\/em> observer to apply some simple health and performance tests against a service component. The use cases are:<\/p>\n

    \n
  1. Test to check features in a feature service<\/li>\n
  2. Test response time for an export map operation on a map service<\/li>\n
  3. Test for a specific response from a feature service (to check data integrity)<\/li>\n<\/ol>\n

     <\/p>\n

    The intention is to illustrate the potential of the Check-Service<\/em> observer to help admins test health and performance of Monitor service components.<\/p>\n"},{"acf_fc_layout":"content","content":"

    1. Test to check features in a feature service<\/strong><\/h3>\n

    This is an easy and simple test to execute on a feature service. This query sends a request that queries all features in the feature service and returns their count. For example, you may have a feature service that is updated daily. You could apply this query at the end of each day to ensure new features were added and are available. This test checks that the service can be queried and can help measure performance.<\/p>\n

    In this example, the Check-Service<\/em> observer is applied to a service component named US_Counties<\/em> in an ArcGIS Online organization.<\/p>\n"},{"acf_fc_layout":"image","image":{"ID":2937294,"id":2937294,"title":"Fig 4 - MonitorAug25","filename":"Fig-4-MonitorAug25.png","filesize":31502,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/monitor\/administration\/arcgis-monitor-exploring-the-check-service-observer\/fig-4-monitoraug25","alt":"","author":"5481","description":"","caption":"","name":"fig-4-monitoraug25","status":"inherit","uploaded_to":2937287,"date":"2025-08-26 14:44:05","modified":"2025-08-26 14:44:05","menu_order":0,"mime_type":"image\/png","type":"image","subtype":"png","icon":"https:\/\/www.esri.com\/arcgis-blog\/wp-includes\/images\/media\/default.png","width":751,"height":721,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25-213x200.png","thumbnail-width":213,"thumbnail-height":200,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25.png","medium-width":272,"medium-height":261,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25.png","medium_large-width":751,"medium_large-height":721,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25.png","large-width":751,"large-height":721,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25.png","1536x1536-width":751,"1536x1536-height":721,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25.png","2048x2048-width":751,"2048x2048-height":721,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25-484x465.png","card_image-width":484,"card_image-height":465,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2025\/08\/Fig-4-MonitorAug25.png","wide_image-width":751,"wide_image-height":721}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

    Where:<\/p>\n