Questions tagged [cache]

A component that transparently stores data so that future requests for that data can be served faster

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14 votes
3 answers
4k views

Increasing display performance of ArcGIS Online Basemaps like Bing in ArcMap?

I'd like to know if there are ways (within ArcGIS itself) to increase the display performance of basemaps within ArcMap. The internet connection was recently upgraded, so it is much faster than before,...
13 votes
4 answers
6k views

Export ArcGIS tiles data to any image format

I've a raster dataset in Cache/Mixed format in ArcGIS. I need to export this into a georeferenced tiff or any other raster image format in order to use it as base map in some other desktop based GIS ...
  • 1,005
13 votes
3 answers
1k views

Increase Tiles Caching Speed (TileStache)

I am serving vector tiles using TileStache, I have everything set up like I want. My data is stored in Postgres and I am using the VecTiles provider to serve GeoJSON tiles. I want to cache all my ...
9 votes
1 answer
3k views

Publish cached map service using pre-existing cache folder

We use: ArcGIS Server Advanced Enterprise 10.3 / ...
  • 1,488
8 votes
4 answers
6k views

How Can I Make QGIS Stop Blinking Every Time I Pan?

The way QGIS draws the canvas when panning is quite annoying. If I pan the map even a little bit everything goes blank for a second or two before the layers are drawn. It looks like this happens only ...
  • 81
8 votes
3 answers
18k views

Clearing cache memory using python?

In this script I use 2 nested 'for' loops to extract a series of variables by month (month = 0 - 11) from 5 netcdf files and then mosaic together each extracted variable. The script runs but after ...
  • 81
8 votes
2 answers
2k views

Where is feature cache in ArcMap for ArcObjects to access?

It seems that ArcMap keeps a cache for every layer which contains features data and every time wants to refresh layer or apply a change, uses this cache. As I found, when ArcMap wants to draw a layer ...
  • 816
8 votes
3 answers
2k views

Optimising map cache creation performance in ArcGIS for Server 10.2.1

I'm relatively new to ArcGIS for Server, so I hope that someone is able to point me in the right direction in case what I've been doing isn't good practice. I have 2 boxes with ArcGIS for server 10.2....
  • 2,088
7 votes
2 answers
9k views

Is the QGIS cache directory automatically created?

This question is directly a result of a question posted earlier about the units of cache size: QGIS - what is cache size measured in I went to the Options menu in QGIS, to the Network tab. Here is ...
  • 13.1k
7 votes
2 answers
2k views

Can QGIS cache a PostGIS layer for faster rendering?

Is there any setting that makes it possible to cache features from a PostGIS layer? (or any other layer) For example: I add 20 layers from postgres then for every one of them set symbology and ...
7 votes
2 answers
421 views

ArcGIS Server: Limit creation of cache tiles to certain areas by providing a feature class

I am publishing a map service to ArcGIS Server 10.0. I cannot succeed to limit the creation of tiles to certain areas only, instead of creating them for the entire map. According to this help document ...
6 votes
4 answers
2k views

Caching / Preloading data for use with WMS queries

Hoping someone can help me with this issue. I've got a map implemented in my web application using OpenLayers that makes WMS queries to GeoServer that in turn queries a Postgres (PostGIS) database to ...
6 votes
1 answer
515 views

How to control visibility of cached layer in ArcGIS Server map service?

I am consuming mapservice form ArcGIS Server 10 using ArcGIS Silverlight API. I have created cache (fusion layers) for my services by right clicking on the mapservice in ArcCatalog and clicking create ...
  • 161
6 votes
1 answer
438 views

Creating a bounding box to pull from cache

I have a simple python script that is pulling in lat,longs from company's db and we are trying to create several bounding boxes around these points to simulate zoom-levels. The script will pull tiles ...
  • 61
6 votes
1 answer
1k views

Clearing map cache - ArcGIS Engine

Is there a programmatic way to clear the cache of a map in ArcGIS Engine 10.0? It is apparent that there is some caching scheme operating under the covers, and I'd like to clear all of its cached ...
  • 275
6 votes
0 answers
197 views

GeoServer imageIOCache warning won't go away

We are running GeoServer 2.15 and we keep seeing this warning message on some pages saying "The "Coverage Access" page "ImageIO Cache Memory Threshold" is unset, and can cause a severe performance ...
6 votes
1 answer
723 views

Can you set a QGIS print composer to render the map as default?

I have set up a number of templates for the print composer in QGIS. In the Print Composer, there is the option to have the map image displayed in 3 ways: as a blank rectangle with no updates until ...
  • 370
5 votes
4 answers
6k views

Creating Local Cache From ArcGIS Online Basemaps

I am contemplating creating a local caches from the standard ArcGIS Online Basemaps; streetmap, imagery and topo. I need to do this because the environment the web application will be hosted is DOES ...
  • 5,611
5 votes
1 answer
649 views

How to cache PostGIS views?

Does anyone knows if there exists a caching system for views or queries in postgis? I have a system that gives information through a webpage using a postgis view as backend. The problem is that, ...
  • 353
5 votes
2 answers
1k views

Unable to stop ArcGIS Server automatic cache generation

I'm running ArcGIS Server 10.1 on a Windows box on Amazon, via remote desktop. I've set up some services on which I have enabled caching using the Bing/Google/Esri scheme. I explicitly set these to ...
  • 20.6k
5 votes
1 answer
4k views

'invalid url' on ArcGIS server REST API

From time to time, the services on our ArcGIS server will not be available, and when requesting tiles, I will get a 'invalid url'. This is okay, sometimes it is scheduled downtime, maintenance or just ...
  • 335
5 votes
1 answer
153 views

Making a QgsRasterLayer only render what's available in its cache

I have a QgsRasterLayer: raster_layer = QgsRasterLayer(...) The user moved the map around a bit and the layer is currently visible. How can I make QGIS (temporarily) not request new data of this ...
  • 8,838
5 votes
1 answer
1k views

How do I configure MapProxy to show only cache?

I have local files of the already built cache. Now I try to configure a layers which gets the cache layer and shows it, but the problem is that I can't make it ignore the original "sources" because ...
5 votes
1 answer
535 views

Why Can't ArcPy Search the Newly Created Feature

I'm running the following tool in ArcGIS 10. I have an ArcPy Script like this: import arcpy from arcpy import env env.workspace=r"C:/sde/lcimrl.sde" fc="SDE.ATTACHMENTS\SDE.attachment_points" fcRows =...
  • 377
5 votes
2 answers
3k views

How to serve local maps for an offline HTML5 webmapping app?

How could one serve maps (tiles in wherever format possible) within a Android device to be consumed by an offline webmapping app also accessed within the device's browser?
5 votes
1 answer
720 views

BoundingBox key in Geo API of Redis

I am very happy so see that Redis now offers a Geo API I would like to host a service where, given a latitude-longitude pair, I retrieve a bounding-box (of OSM) from a pgsql query. Since I expect ...
4 votes
3 answers
2k views

Using WFS Caching / Back button?

I'm using WFS protocol on Vector layer / GeoServer / PostGIS Currently the map is refreshing and calling new requests whenever i do anything like searching or drawing and when i move back to a part ...
  • 459
4 votes
1 answer
1k views

Can I increase the number of processes in ArcGis Server 10.1?

I use ArcMap 10.1. I have a map with many Mosaic and Raster layers. They are stored in many gdb-s. I publish this map with option "Create tiles on demand". But this tiles are created very slowly (may ...
  • 665
4 votes
1 answer
495 views

Does render caching in QGIS save permanently or is it only temporary?

I know there are a few questions similar to this on the forum such as: Is the QGIS cache directory automatically created? and Can QGIS cache a PostGIS layer for faster rendering? but I am still ...
  • 2,818
4 votes
1 answer
1k views

ArcGIS Server cache from outside wms service

I have an arcgis server web application (version 10.0) that utilizes an external wms service for displaying some information layers on top of a local basemap. This external service has a tendency to ...
  • 648
4 votes
1 answer
638 views

Creating a map cache without ArcServer?

Is there a way to create a tiled map cache without using ArcServer? I have aerial photography in .sid format that takes a while to load, whereas cached jpeg tiles will load much much faster. Any way I ...
  • 901
4 votes
1 answer
790 views

Programatically Cache WMTS for Offline Use

Background I have developed an app for iOS using the Swift language. The app uses online map services, including WMTS, WMS, TMS, XYZ and makes heavy use of OpenLayers to display these. I would like ...
4 votes
1 answer
635 views

How to use an ArcGIS Server cache directory with multiple (differently named) map services?

We have a map service named 'X' that created and uses tiles in a cache directory 'Folder_X'. I'd like to create a second map service named 'Y' that uses the same cache directory - that is, it serves ...
  • 1,841
4 votes
0 answers
1k views

WFS feature caching in QGIS hitting feature limit

I am using QGIS 2 and using a WFS with a 5,000 feature limit. When I load a dataset without caching the features and it hits the 5,000 feature limit, QGIS seems to give up on reloading data. When I ...
3 votes
2 answers
995 views

Inserting new data in PostGIS are not displayed automatically in Geoserver layer

I have build an application using PostGIS, geoserver and openlayers2.12 and I am facing the following problem: When I add some data in my Postgis tables, geoserver doesn't get refreshed properly and ...
  • 2,534
3 votes
1 answer
552 views

Cached vector tiles with dynamic attributes

I am looking to implement a web map of property boundaries and owner information. The parcel data (property boundaries) is updated infrequently, but the assessment data is updated weekly, as ...
  • 1,135
3 votes
2 answers
435 views

Remove TileStache cache for a single feature

In a large parcel map, features are edited and need to be re-styled. I want to keep as much of the cache as possible, but invalidate the cache for features that are edited when the features are saved. ...
  • 183
3 votes
1 answer
1k views

How to increase performance of tile caches if vendor parameter filters are needed?

My application uses vendor parameters to filter the data. It takes some time to generate all tiles on the server. Therefor I'm trying to increase the performance of the application. I'm using ...
  • 447
3 votes
1 answer
5k views

Force openlayers to not use browser cache for tiles refresh

I use OpenLayers.Layer.XYZ to display tiles from TileStache server without using the cache option of the server. However, I notice that the tiles stay in cache (probably the browser cache) until the ...
3 votes
1 answer
2k views

Geoserver won't cache wms server with style in workspace

I am using Geoserver 2.5 on ubuntu and am trying to cache a layer that has it styles in workspaces. When I try to start the cache with seed/truncate nothing happens and I get things like this in the ...
  • 815
3 votes
1 answer
1k views

Tiling/Caching with ArcGIS Server [closed]

A few weeks ago we crashed our server by trying to tile a large image service (600gbs) (multiple times without clearing the cache) which caused us to exceed the servers free disk space. We fixed the ...
  • 130
3 votes
3 answers
10k views

local tiles server for offline access

Anyone knows if there is a "lightway" solution to mount a local tile server? Feature I'd to provide is local storage of small sections of maps, not more than small city for example, in order to ...
  • 31
3 votes
1 answer
754 views

Mapproxy tiles are partly black instead of transparent

I use MapProxy for caching WMS/WMTS tiles and it works fine up to a certain zoom level. But for higher zoom levels MapProxy fills the empty parts of the layers in black. This happens for certain ...
  • 874
3 votes
1 answer
898 views

Cache geodjango query with bounding box filter

Im using geodjango (postgis) to retrieve points contained inside a bounding box (made by leafletjs), it works so nice, but now I want to cache this query. A tipical query is one like this: /points?...
3 votes
1 answer
1k views

How to set Tomcat to completely prevent browser from caching my PBF vector tile?

I need to publish a geometry table (in PostGIS) as a layer of vector tiles (in PBF format) in GeoServer. As the table is dynamically written by a production web app, i need to set the layer's caching ...
  • 709
3 votes
1 answer
55 views

Changing cache size for geocoding via ArcPy?

I recently posted this query: Arcpy script stalls, CPU usage goes to 0, no error message returned and got as a suggestion to increase the cache size in Arcpy for the geocoding of addresses that I am ...
3 votes
1 answer
2k views

Issue with recently cached ArcGIS services

ArcGIS for Server 10.0 SP5 Virtual Windows Server 2008 R2 Enterprise 16.0 GB RAM, 4 Processors (2.00 GHz each) I am having issues with two services that I have cached as basemaps for my web ...
  • 2,900
3 votes
0 answers
286 views

Set the Cache-Control max-age of ArcGIS Server 10.1 tiles to a custom value

Using ArcGIS Server 10.1 I have a cached service. The service is set to allow clients to cache tiles and the images do contain max-age values: Cache-Control private, max-age=86400 However, I would ...
3 votes
1 answer
2k views

Efficient way to provide cached tiles? [closed]

I am creating an app in Android that requires cached areas. I allow the user to cache an area of reasonable size. The server provides these tiles in a zip in the format /z/x/y.png. I took a (very) ...
3 votes
0 answers
373 views

OpenLayers - Pre cache layers on Client

We are using GeoServer and OpenLayers to display our data. We have a static WMS layer and several dynamic WFS layers. I want to use client side caching of the WMS layer at different pre-defined zoom ...
  • 227