ArcGIS Help 10.1 - Manage Map Server Cache Tiles (Server)

Summary

Creates and updates tiles in an existing map or image service cache. This tool is used to create new tiles, replace missing tiles, overwrite outdated tiles, and delete tiles.

Usage

Legacy:

Parameters have changed for this tool at version 10.1. Models and scripts written prior to 10.1 that use this tool will need to be modified to work in 10.1.

Make sure you have a tiling scheme defined for your map service before using this tool. You can use the Caching tab of the Service Editor window or the Create Map Server Cache tool to create the tiling scheme.
This tool may take a long time to run for caches that cover a large geographic extent or very large map scales. If the tool is cancelled, tile creation is stopped, but the existing tiles are not deleted. This means you can cancel the tool if you run out of time and re-run it later on the same cache using the RECREATE_EMPTY_TILES update mode.

Syntax

ManageMapServerCacheTiles_server (input_service, scales, update_mode, {num_of_caching_service_instances}, {area_of_interest}, {update_extent}, {wait_for_job_completion})

Parameter	Explanation	Data Type
input_service	The map or image service whose cache tiles you want to update. This is a string containing both the server and service information. To see how to construct this string, open ArcCatalog, select your service in the Catalog tree, and note the text in the Location toolbar. Then change the backslashes to forward slashes, for example, GIS Servers/arcgis on MYSERVER (admin)/USA.MapServer.	String
scales	The scale levels at which you will create or delete tiles when running this tool, depending on the Update Mode.	Double
update_mode	The mode for updating the cache. RECREATE_EMPTY_TILES —Only tiles that are empty will be created. Existing tiles will be left unchanged. RECREATE_ALL_TILES —Existing tiles will be replaced and new tiles will be added if the extent has changed. DELETE_TILES —Tiles will be deleted from the cache. The cache folder structure will not be deleted. If you wish to delete the entire cache, including the folder structure, use the Delete Map Server Cache tool.	String
num_of_caching_service_instances (Optional)	The total number of instances of the System/CachingTools service that you want to dedicate toward running this tool. You can increase the maximum number of instances per machine of the System/CachingTools service using the Service Editor window available through an administrative connection to ArcGIS Server. Ensure your server machines can support the chosen number of instances.	Long
area_of_interest (Optional)	Defines an area of interest to constrain where tiles will be created or deleted. This can be a feature class, or it can be a feature that you interactively define in ArcMap. This parameter is useful if you want to manage tiles for irregularly shaped areas. It's also useful in situations where you want to pre-cache some areas and leave less-visited areas uncached. If you do not provide a value for this parameter, the default is to use the full extent of the map.	Feature Set
update_extent (Optional)	Rectangular extent at which to create or delete tiles, depending on the value of the update_mode parameter. It is not recommended you provide values for both update_extent and area_of_interest. If values for both parameters are provided, the value of area_of_interest will be used.	Extent
wait_for_job_completion (Optional)	This parameter allows you to watch the progress of the cache job running on the server. WAIT —This tool will continue to run in ArcGIS for Desktop while the cache job runs on ArcGIS for Server or ArcGIS Online. With this option, you can request detailed progress reports at any time and view the geoprocessing messages as they appear. This is the default option. It is recommended that you use this option in Python scripts. DO_NOT_WAIT —The geoprocessing tool will submit the job to the server, allowing you to perform other geoprocessing tasks in ArcGIS for Desktop or even close ArcGIS for Desktop. This option is used when you choose to build a cache automatically at the time you publish the service, and you can also set this option on any other cache that you build. To track the status of the cache job, open ArcGIS for Desktop, right-click the service in the Catalog window, and click View Cache Status. You can also use the URL provided in the tool result message.This option is not available if the Status.gdb file geodatabase is not present in the service's cache directory.	Boolean

Code Sample

Example1

Create or update all the tiles in the cache using the RECREATE_ALL_TILES option

# Name: ManageMapServerCacheTiles.py
# Description: The following stand-alone script demonstrates how to Recreate all 
#               cache tiles for the default number of scales in the cache tiling
#               scheme.
# Requirements: os, sys, time and traceback modules

# Any line that begins with a pound sign is a comment and will not be executed
# Empty quotes take the default value.
# To accept arguments from the command line replace values of variables to
#                                                           "sys.argv[]"

# Import system modules
import arcpy
from arcpy import env
import os, sys, time, datetime, traceback, string

# Set environment settings
env.workspace = "C:/data"

# List of input variables for map service properties
connectionFile = r"C:\Users\<username>\AppData\Roaming\ESRI\Desktop10.1\ArcCatalog"
server = "arcgis on MyServer_6080 (publisher)"
serviceName = "Rainfall.MapServer"
inputService = connectionFile + "\\" + server + "\\" + serviceName
scales = ""
numOfCachingServiceInstances = 2
updateMode = "RECREATE_ALL_TILES"
areaOfInterest = ""
waitForJobCompletion = "WAIT"
updateExtents = ""

currentTime = datetime.datetime.now()
arg1 = currentTime.strftime("%H-%M")
arg2 = currentTime.strftime("%Y-%m-%d %H:%M")
file = r'C:/data/report_%s.txt' % arg1

# print results of the script to a report
report = open(file,'w')

try:
    starttime = time.clock()
    result = arcpy.ManageMapServerCacheTiles_server(inputService, scales,
                                                    updateMode,
                                                    numOfCachingServiceInstances,
                                                    areaOfInterest, updateExtents,
                                                    waitForJobCompletion)
    finishtime = time.clock()
    elapsedtime= finishtime - starttime

    #print messages to a file
    while result.status < 4:
        time.sleep(0.2)
    resultValue = result.getMessages()
    report.write ("completed " + str(resultValue))

    print "Created cache tiles for given schema successfully for "
    + serviceName + " in " + str(elapsedtime) + " sec \n on " + arg2
    
except Exception, e:
    # If an error occurred, print line number and error message
    tb = sys.exc_info()[2]
    report.write("Failed at step 1 \n" "Line %i" % tb.tb_lineno)
    report.write(e.message)
report.close()
    
print "Created Map server Cache Tiles "

Example2

Update empty tiles for some of the scales using the RECREATE_EMPTY_TILES option

# Name: ManageMapServerCacheTiles.py
# Description: The following stand-alone script demonstrates how to Recreate  
#               empty tiles for one of the default number of scales in the cache
#               tiling scheme.
# Requirements: os, sys, time and traceback modules

# Any line that begins with a pound sign is a comment and will not be executed
# Empty quotes take the default value.
# To accept arguments from the command line replace values of variables to
#                                                           "sys.argv[]"

# Import system modules
import arcpy
from arcpy import env
import os, sys, time, datetime, traceback, string

# Set environment settings
env.workspace = "C:/data"

# List of input variables for map service properties
connectionFile = r"C:\Users\<username>\AppData\Roaming\ESRI\Desktop10.1\ArcCatalog"
server = "arcgis on MyServer_6080 (publisher)"
serviceName = "Rainfall.MapServer"
inputService = connectionFile + "\\" + server + "\\" + serviceName
scales = [500000,250000,125000,64000]
numOfCachingServiceInstances = 2
updateMode = "RECREATE_EMPTY_TILES"
areaOfInterest = ""
waitForJobCompletion = "WAIT"
updateExtents = ""
cacheDir = "c:\\arcgisserver\\arcgiscache\\"

currentTime = datetime.datetime.now()
arg1 = currentTime.strftime("%H-%M")
arg2 = currentTime.strftime("%Y-%m-%d %H:%M")
file = 'C:/data/report_%s.txt' % arg1

# print results of the script to a report
report = open(file,'w')

# use "scales[0]","scales[-1]","scales[0:3]"

try:
    starttime = time.clock()
    result = arcpy.ManageMapServerCacheTiles_server(inputService, scales[-1],
                                                    updateMode, numOfCachingServiceInstances,
                                                    areaOfInterest, updateExtents,
                                                    waitForJobCompletion)
    finishtime = time.clock()
    elapsedtime = finishtime - starttime
    ## print messages to a file
    while result.status < 4:
        time.sleep(0.2)
    resultValue = result.getMessages()
    report.write ("completed " + str(resultValue))
    
    
    print "Created cache tiles for scale =" + str(scales[-1]) + "for "
    + serviceName + "\n   at " + cacheDir + " in " + str(elapsedtime)
    " sec \n on " + arg2

except Exception, e:
    # If an error occurred, print line number and error message
    tb = sys.exc_info()[2]
    report.write("Failed at step 1 \n" "Line %i" % tb.tb_lineno)
    report.write(e.message)
    
report.close()   
print "Rereated Map server Cache Tiles for scale = " + str(scaleValues[-1])

Example3

Update tiles using an Area of Interest

# ManageMapServerCacheTiles example for ArcGIS Server 10.1(stand-alone script)

# Name: ManageMapServerCacheTiles.py
# Description: The following stand-alone script demonstrates how to Recreate all
#               tiles using given feature class.

# Requirements: os, sys, time and traceback modules
# Author: ESRI

# Any line that begins with a pound sign is a comment and will not be executed
# Empty quotes take the default value.
# To accept arguments from the command line replace values of variables to
#                                                           "sys.argv[]"

# Import system modules
import arcpy
from arcpy import env
import os, sys, time, datetime, traceback, string

# Set environment settings
env.workspace = "C:/data"

# List of input variables for map service properties
connectionFile = r"C:\Users\<username>\AppData\Roaming\ESRI\Desktop10.1\ArcCatalog"
server = "arcgis on MyServer_6080 (publisher)"
serviceName = "Rainfall.MapServer"
inputService = connectionFile + "\\" + server + "\\" + serviceName
scales = [500000,250000,125000,64000]
numOfCachingServiceInstances = 2
updateMode = "RECREATE_ALL_TILES"
areaOfInterest = "C:/data/shp/CaTxFlMaMin.shp"
waitForJobCompletion = "WAIT"
updateExtents = ""


currentTime = datetime.datetime.now()
arg1 = currentTime.strftime("%H-%M")
arg2 = currentTime.strftime("%Y-%m-%d %H:%M")
file = r'C:/data/report_%s.txt' % arg1

# print results of the script to a report
report = open(file,'w')

# use "scales[0]","scales[-1]","scales[0:3]"

try:
    starttime = time.clock()
    result = arcpy.ManageMapServerCacheTiles_server(inputService, scales[-1],
                                                    updateMode,
                                                    numOfCachingServiceInstances,
                                                    areaOfInterest, updateExtents,
                                                    waitForJobCompletion)                                           
    finishtime = time.clock()
    elapsedtime = finishtime - starttime

    #print messages to a file
    while result.status < 4:
        time.sleep(0.2)
    resultValue = result.getMessages()
    report.write ("completed " + str(resultValue))
    
    print "Created cache tiles for scale =" + str(scales[-1]) + "for "
    + serviceName + "at " + cacheDir + "\n using specified feature class "
    areaOfInterest + " in " + str(elapsedtime) + " sec \n on " + arg2

except Exception, e:
    # If an error occurred, print line number and error message
    tb = sys.exc_info()[2]
    report.write("Failed at \n" "Line %i" % tb.tb_lineno)
    report.write(e.message)

report.close()     
print "Rereated Map server Cache Tiles"
print "for scale = " + str(scaleValues[-1]) + " using area of Interest"

Environments

This tool does not use any geoprocessing environments

Licensing Information

ArcGIS for Desktop Basic: Yes

ArcGIS for Desktop Standard: Yes

ArcGIS for Desktop Advanced: Yes

1/21/2015