{"id":626412,"date":"2019-10-03T17:19:13","date_gmt":"2019-10-04T00:19:13","guid":{"rendered":"https:\/\/www.esri.com\/arcgis-blog\/?post_type=blog&p=626412"},"modified":"2020-02-21T12:32:29","modified_gmt":"2020-02-21T20:32:29","slug":"move-services-to-shared-instances-using-python","status":"publish","type":"blog","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-enterprise\/administration\/move-services-to-shared-instances-using-python","title":{"rendered":"Move services to shared instances using Python"},"author":7351,"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":[359812,24341,482312,26501,482302],"industry":[],"product":[36571],"class_list":["post-626412","blog","type-blog","status-publish","format-standard","hentry","category-administration","tag-arcsoc","tag-python","tag-service-instances","tag-services","tag-shared-instances","product-arcgis-enterprise"],"acf":{"short_description":"Learn how to script the flip to shared instances for compatible map services on your ArcGIS Server site.","flexible_content":[{"acf_fc_layout":"content","content":"

This year, we introduced shared instances to ArcGIS Enterprise. This is a significant evolution in how your server sites handle service traffic. Rather than each service in a site running their own service instances, the shared instance pool is designed for use by multiple services.<\/p>\n

Compatible map services published from ArcGIS Pro to ArcGIS Server 10.7 and later can be configured to use this pool. When they need to process a request, they\u2019ll use a shared instance; once the job is finished, they\u2019ll release the instance back into the shared pool.<\/p>\n

 <\/p>\n"},{"acf_fc_layout":"image","image":{"ID":471492,"id":471492,"title":"configureShared","filename":"configureShard.png","filesize":60539,"url":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard.png","link":"https:\/\/www.esri.com\/arcgis-blog\/products\/arcgis-enterprise\/administration\/shared-instances-arcgis-server-107\/configureshard","alt":"The shared pool option for a service","author":"7351","description":"","caption":"Selecting the shared pool option will grey out the parameters pertaining to the dedicated instance pool.","name":"configureshard","status":"inherit","uploaded_to":471252,"date":"2019-03-26 19:28:31","modified":"2019-03-26 21:12:34","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":999,"height":519,"sizes":{"thumbnail":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard-150x150.png","thumbnail-width":150,"thumbnail-height":150,"medium":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard.png","medium-width":464,"medium-height":241,"medium_large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard.png","medium_large-width":768,"medium_large-height":399,"large":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard.png","large-width":999,"large-height":519,"1536x1536":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard.png","1536x1536-width":999,"1536x1536-height":519,"2048x2048":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard.png","2048x2048-width":999,"2048x2048-height":519,"card_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard-826x429.png","card_image-width":826,"card_image-height":429,"wide_image":"https:\/\/www.esri.com\/arcgis-blog\/app\/uploads\/2019\/03\/configureShard.png","wide_image-width":999,"wide_image-height":519}},"image_position":"center","orientation":"horizontal","hyperlink":""},{"acf_fc_layout":"content","content":"

For many server sites, shared instances can drastically reduce the memory footprint of map services. It\u2019s a particularly big win for services that receive infrequent traffic (perhaps one service request every minute on average or less). Because these services aren\u2019t running their own service instances on each machine in the server site, all that memory is conserved for use elsewhere.<\/p>\n

Administrators have also told us they like the reduced time and effort involved in managing service instances \u2013 instead of adjusting the dedicated instance pool size for all their services, they can place those services in the shared instance pool.<\/p>\n

To learn more about shared instances, and to see which services are compatible with the shared instance pool, take a look at our blog from March<\/a>. The documentation topic Configure service instance settings<\/a> has all you need to know to get started.<\/p>\n"},{"acf_fc_layout":"content","content":"

A new tool for administrators<\/h1>\n

A request we heard at User Conference was for the ability to move existing compatible map services to the shared instance pool in bulk. While you can change the default instance type<\/a> used for newly published compatible map services, that only governs new services, not the existing services running in your site.<\/p>\n

For administrators of sites with lots of services, it can be a hurdle to examine each for compatibility, then change each compatible service\u2019s instance type<\/a> in Server Manager.<\/p>\n

Hence, a script to automate the flip.<\/p>\n

We\u2019ve put together a Python script that does two things. First, it counts the number of services in your site by their \u201cprovider\u201d \u2013 a value ArcGIS Server uses to know how to run. This breaks down the services in your site into three categories:<\/p>\n