Transcript PPT - Esri
ArcGIS for Server Reference Implementations An ArcGIS Server’s architecture tour Basic Single Machine Site • Advantages • Easy to setup • Fast performance (keep file resources local) Client http:6080 ArcGIS Site Manager GIS Server Server Directories & Configuration Store Data (Files) • Uses: • Development • Intranets • To keep in mind • No HA • No http standard ports used • Security • Admin end-points exposed to clients (Consider restricting IPs) • Only Esri’s token based authentication Single Machine Site with Proxy Client Firewall http:80 DMZ Proxy Firewall Forces all access to your GIS Server Through your Proxy Block your admin end-points http:6080 ArcGIS Site http://acme.com/context/admin http://acme.com/context/manager Manager Administration through 6080 Hides your GIS Server machine, and ports GIS Server Server Directories & Configuration Store Data (DBs) Data (Files) Single Machine Site with Proxy Client • Uses: http:80 Proxy Firewall http:6080 ArcGIS Site Manager GIS Server Server Directories & Configuration Store Data (DBs) Data (Files) • Intranets / Internet access • Advantages • Fast performance (keep file resources local) • Enhanced security • To keep in mind • No HA • Token authentication only The ArcGIS Web Adaptor Client • An Esri proxy implementation for ArcGIS Server Web Server http:80 Web Adaptor Firewall http:6080 ArcGIS Site Manager • Runs on your web server • IIS, Java • Helps you leverage your third party web server security features Including Web Tier Authentication • Automatically handles GIS Servers in your site* GIS Server Server Directories & Configuration Store Data (DBs) Data (Files) * Will see later ArcGIS site with Multiple Web Adaptors Client Client http:80 Web Adaptor Web Adaptor configured to block anonymous access (Users can see private and public services) (Private) Web Adaptor http:80 (Public) Firewall http:6080 ArcGIS Site Manager GIS Server Server Directories & Configuration Store Data (DBs) Data (Files) Web Adaptor configured to allow anonymous access (Users can see public services) Multi-Machine Sites Basic Concepts • Two or more machines sharing single config-store & server directories • Pool of machines using ports 4000-4005+ Internall use only. Clients cannot use ArcGIS Site http:6080 GIS Server http:6080 4000… GIS Server • All GIS Servers kept in sync for you update one GIS Server… all other nodes in the pool updated* • Data strategies: As usual. Keep local if you can Note: Map caches can’t be local If you share, share for all Server Directories & Configuration Store * Unless using ‘Clusters’. We will see later Multi-Machine Site With Load Balancer Client • Typical configuration to support applications Load Balancer • Load balancer fronts a pool of GIS Servers Firewall ArcGIS Site http:6080 GIS Server http:6080 4000… GIS Server • For High Capacity or HA with simplified administration • Typically Load Balancer acts as or is complemented by a proxy + firewall • If not using Web Adaptor, can’t use Web Tier authentication Server Directories & Configuration Store Multi-Machine Site With Web Adaptor Client • A variation of the previous configuration Web Adaptor • Supports Web Tier Authentication Firewall ArcGIS Site http:6080 GIS Server http:6080 4000… Server Directories & Configuration Store GIS Server Multi-Machine Site With Redundant Web Adaptors Client Web Adaptor • A HA variation of the previous configuration Web Adaptor • Requires third party load balancer or web farm clustering Firewall ArcGIS Site http:6080 GIS Server http:6080 4000… Server Directories & Configuration Store GIS Server • As in all HA configurations: Must consider HA implications for Server Directories, Config-Store and Data tier • ArcGIS Server components • Single Machine Sites • Basic • With Proxy • With Web Adaptor • Multi Machine Sites • • • • • Concepts Basic (without a load balancer) With Load Balancer With Web Adaptor With redundant Web Adaptors • Load Balanced Sites • Concepts • Active-Passive Fail Over • Active-Active Load balanced ArcGIS Site Concepts aka Siloed Architecture Client Use Cases: • High Availability • High Capacity Proxy/Load Balancer Keep in mind: ArcGIS Site Load-Balancer/Proxy or Web Adaptor GIS Server GIS Server GIS Server Server Directories & Configuration Store ArcGIS Site Load-Balancer/Proxy or Web Adaptor GIS Server GIS Server GIS Server Server Directories & Configuration Store • Sites are not aware of each other • You must keep Data, Security and Services in sync • Must leverage third party load balancers • ArcGIS Server components • Single Machine Sites • Basic • With Proxy • With Web Adaptor • Multi Machine Sites • • • • • Concepts Basic (without a load balancer) With Load Balancer With Web Adaptor With redundant Web Adaptors • Load Balanced Sites • Concepts • Active-Passive Fail Over • Active-Active Load Balanced ArcGIS Sites Active-Active Client Use Cases: • High Availability • High Capacity Proxy/Load Balancer Notes: • ArcGIS Site Load-Balancer/Proxy or Web Adaptor GIS Server GIS Server GIS Server Server Directories & Configuration Store Active ArcGIS Site Load-Balancer/Proxy or Web Adaptor GIS Server GIS Server GIS Server Server Directories & Configuration Store Active • Supports distribution of sites across separate data centers Must keep Sites in sync! • ArcGIS Server components • Single Machine Sites • Basic • With Proxy • With Web Adaptor • Multi Machine Sites • • • • • Concepts Basic (without a load balancer) With Load Balancer With Web Adaptor With redundant Web Adaptors • Load Balanced Sites • Concepts • Active-Passive Fail Over • Active-Active Load Balanced ArcGIS Sites Active-Passive Fail-Over Client Use Cases: • High Availability with Fail-Over Licensing Proxy/Load Balancer Notes: • • ArcGIS Site Load-Balancer/Proxy or Web Adaptor GIS Server GIS Server GIS Server Server Directories & Configuration Store Active ArcGIS Site Load-Balancer/Proxy or Web Adaptor GIS Server GIS Server GIS Server Server Directories & Configuration Store Stand-by • No additional licensing cost for Fail-Over sites Supports distribution of sites across separate data centers Must keep Sites in sync! Questions Concept: ‘Clusters’ Cluster A http:6080 GIS Server http:6080 4000… GIS Server Cluster B 4000 +1 http:6080 GIS Server Site Server Directories & Configuration Store In ArcGIS Server, a ‘cluster’ is a logical group of machines within a site that run the same services Concept: ‘Clusters’ Cluster A http:6080 GIS Server http:6080 4000… GIS Server Site Server Directories & Configuration Store Total instances (assuming 2 per GIS server) 4 4 2 Cluster B 4000 +1 http:6080 GIS Server Moving machines from cluster to cluster Cluster A http:6080 GIS Server http:6080 4000… GIS Server Site Server Directories & Configuration Store Total instances (assuming 2 per GIS server) 2 2 4 Cluster B 4000 +1 http:6080 GIS Server Moving services from cluster to cluster Cluster A http:6080 GIS Server http:6080 4000… GIS Server Site Server Directories & Configuration Store Total instances (assuming 2 per GIS server) 2 4 4 Cluster B 4000 +1 http:6080 GIS Server Questions • ArcGIS Server components • Single Machine Sites • Basic • With Proxy • With Web Adaptor • Multi Machine Sites • • • • • Concepts Basic (without a load balancer) With Load Balancer With Web Adaptor With redundant Web Adaptors • Other Reference Implementations • Active-Passive Fail Over • Load Balanced Sites (aka Siloed architecture)