Book Image

Expert GeoServer

By : Ben Mearns
Book Image

Expert GeoServer

By: Ben Mearns

Overview of this book

GeoServer is open source, server-side software written in Java that allows users to share and edit geospatial data. In this book, you'll start by learning how to develop a spatial analysis platform with web processing services. Then you'll see how to develop an algorithm by chaining together geospatial analysis processes, which you can share with anyone in the world. Next you'll delve into a very important technique to improve the speed of your map application—tile caching. Here, you'll understand how tile caching works, how to develop an effective tile cache-supported web service, and how to leverage tile caching in your OpenLayers web application. Further on, you'll explore important tweaks to produce a performant GeoServer-backed web mapping application. Moving on, you'll enable authentication on the frontend and backend to protect sensitive map data, and deliver sensitive data to your end user. Finally, you'll see how to put your web application into production in a secure and user-friendly way. You'll go beyond traditional web hosting to explore the full range of hosting options in the cloud, and maintain a reliable server instance.
Table of Contents (7 chapters)

Configuring tile caching in GeoServer

In the last section, you learned the fundamentals of tile caching. In this section, you'll learn the ins and outs of setting up tile caching in GeoServer. First, you'll learn all the global and layer options for tile caching in the GeoServer web administration interface. Then, we'll look at these settings in the XML files under the GeoServer directory. Finally, you'll learn about gridsets and why these are important in building your tile-cache-backed app.

We disabled all of these other services in the previous section, as shown in the following screenshot, since we'll be using WMST, which is enabled in the Services portion of the sidebar:

You can set a number of global options that will be available on all new layers or layer groups that will be tiled. Let's look at a couple of these options:

The metatile size...