MapGuide RFC 75 - Adding caching support to GETTILEIMAGE

This page contains an change request (RFC) for the MapGuide Open Source project. More MapGuide RFCs can be found on the RFCs page.

Status

RFC Template Version	(1.0)
Submission Date	()
Last Modified	(Zac Spitzer) Timestamp
Author	(Zac Spitzer)
RFC Status	(proposed)
Implementation Status	()
Proposed Milestone	(2.2)
Assigned PSC guide(s)	(when determined)
Voting History	(vote date)
no vote

Overview

Currently the tile service has no support for http cache semantics.

Motivation

HTTP caching is a very simple way of increasing performance.

Proxy servers cannot currently cache MapGuide GETTILEIMAGE responses, without custom configuration and overrides

Proposed Solution

Adding cache headers to tile service.

This would require support adding the source tile timestamp to the HTTP header and then support returning 304's as required

Implications

None

Test Plan

TBD

Funding/Resources

TBD

Trac Tickets

​Add proper cache headers & file date to GETTILEIMAGE response