ArcSDE版本压缩（Compress）(2)

转载自：http://blog.csdn.net/linghe301/article/details/7777912

其实我在今年的开发者大会中专门对ArcGIS版本压缩做了一个详细的说明。为什么专门来说这个呢？其实现在对ArcGIS用户来说，他们在使用多用户版本操作时，发现性能慢一般都知道进行ArcGIS版本压缩，但是他们往往做的就是Compress操作，这样做是远远不够的，因为什么都不管只进行compress操作，不能彻底的进行压缩，也就是压缩的不彻底， 那么标准的ArcGIS版本压缩流程是什么样的呢？

首先说明，理想的版本压缩后是什么样子的

1：不能出错。（这像是废话）

2：增量表的数据为空

3：状态表和族系表一条记录也就是State_ID=0

相关的压缩流程，使用专门的管理员用户

1：断开其他所有用户的连接，阻止其他新用户连接

2：相关的子版本进行协调和提交

Python实现批量执行ArcGIS版本的协调和提交

http://blog.csdn.NET/linghe301/article/details/7777816

3：数据备份（这个和2可以互换顺序）

关于ArcGIS数据迁移方案的策略(备份也可以参考）

http://blog.csdn.net/linghe301/article/details/6330759

4：删除相关子版本（注意如果使用过同步复制，注意相关的隐藏子版本）

5：删除相关的锁信息

 以Oracle 数据库为例sde用户下

• state_locks
• table_locks
• object_locks
• layer_locks

ArcGIS锁的介绍

http://blog.csdn.net/linghe301/article/details/7345194

6：进行版本压缩

ArcGIS版本压缩（Compress）报ORA-00001: unique constraint 的解决方法
http://blog.csdn.net/linghe301/article/details/7331992
ArcSDE版本压缩之前对UNDO表空间的设置
http://blog.csdn.net/linghe301/article/details/7335530

关于ArcSDE版本压缩（Compress）的再研究

http://blog.csdn.net/linghe301/article/details/6399036

7：创建子版本

一种快速批量创建子版本的方法

http://blog.csdn.net/linghe301/article/details/7329531

8：重建空间索引

 怎么对ArcSDE数据库的要素类进行批量重建空间索引

http://blog.csdn.net/linghe301/article/details/7720871

9：进行统计分析

10：允许其他新用户连接

那么真正的压缩只有这样才能彻底压缩干净。

那么我们也可以使用python进行这样的操作，我没有经这些环节搞成一个现成可以用的脚本，以下的脚本文件仅供参考

 import arcpy, time, smtplib

 # set the workspace
 arcpy.env.workspace = 'Database Connections/admin.sde'

 # set a variable for the workspace
 workspace = arcpy.env.workspace

 # get a list of connected users.
 userList = arcpy.ListUsers("Database Connections/admin.sde")

 # get a list of usernames of users currently connected and make email addresses
 emailList = [u.Name + "@yourcompany.com" for user in arcpy.ListUsers("Database Connections/admin.sde")]

 # take the email list and use it to send an email to connected users.
 SERVER = "mailserver.yourcompany.com"
 FROM = "SDE Admin "
 TO = emailList
 SUBJECT = "Maintenance is about to be performed"
 MSG = "Auto generated Message.\n\rServer maintenance will be performed in 15 minutes. Please log off."

 # Prepare actual message
 MESSAGE = """\
 From: %s
 To: %s
 Subject: %s

 %s
 """ % (FROM, ", ".join(TO), SUBJECT, MSG)

 # Send the mail
 server = smtplib.SMTP(SERVER)
 server.sendmail(FROM, TO, MESSAGE)
 server.quit()

 #block new connections to the database.
 arcpy.AcceptConnections('Database Connections/admin.sde', False)

 # wait 15 minutes
 time.sleep(900)

 #disconnect all users from the database.
 arcpy.DisconnectUser('Database Connections/admin.sde', "ALL")

 # Get a list of versions to pass into the ReconcileVersions tool.
 versionList = arcpy.ListVersions('Database Connections/admin.sde')

 # Execute the ReconcileVersions tool.
 arcpy.ReconcileVersions_management('Database Connections/admin.sde', "ALL_VERSIONS", "sde.DEFAULT", versionList, "LOCK_ACQUIRED", "NO_ABORT", "BY_OBJECT", "FAVOR_TARGET_VERSION", "POST", "DELETE_VERSION", "c:/temp/reconcilelog.txt")

 # Run the compress tool.
 arcpy.Compress_management('Database Connections/admin.sde')

 #Allow the database to begin accepting connections again
 arcpy.AcceptConnections('Database Connections/admin.sde', True)

 #Get a list of datasets owned by the admin user

 # Get the user name for the workspace
 # this assumes you are using database authentication.
 # OS authentication connection files do not have a 'user' property.
 userName = arcpy.Describe(arcpy.env.workspace).connectionProperties.user

 # Get a list of all the datasets the user has access to.
 # First, get all the stand alone tables, feature classes and rasters.
 dataList = arcpy.ListTables('*.' + userName + '.*') + arcpy.ListFeatureClasses('*.' + userName + '.*') + arcpy.ListRasters('*.' + userName + '.*')

 # Next, for feature datasets get all of the featureclasses
 # from the list and add them to the master list.
 for dataset in arcpy.ListDatasets('*.' + userName + '.*'):
     dataList += arcpy.ListFeatureClasses(feature_dataset=dataset)

 # pass in the list of datasets owned by the admin to the rebuild indexes and analyze datasets tools
 # Note: to use the "SYSTEM" option the user must be an administrator.
 arcpy.RebuildIndexes_management(workspace, "SYSTEM", dataList, "ALL")

 arcpy.AnalyzeDatasets_management(workspace, "SYSTEM", dataList, "ANALYZE_BASE", "ANALYZE_DELTA", "ANALYZE_ARCHIVE")

以下的压缩代码仅供参考，适用于ArcGIS9.2/9.3

 # This script is designed to compress an SDE Geodatabase and then
 # loop through and analyze the statistics ofeach feature dataset, feature class and table.
 # It is designed to log the entire process to a text file and
 # if there are any errors during the process the script will email a specified address.
 # Created by Mike Long - [email protected]
 # Last Modified on 7/16/09

 # Import system, Geoprocessing, time and email modules
 import sys, string, os, arcgisscripting, time, smtplib

 # Set the date.
 Date = time.strftime("%m-%d-%Y", time.localtime())

 # Set the time.
 Time = time.strftime("%I:%M:%S %p", time.localtime())

 # Create the Geoprocessor object
 gp = arcgisscripting.create()

 gp.CheckProduct("ArcEditor") # Checks the license level.

 gp.SetProduct("arceditor") # Sets the license level.

 print "Process started at " + str(Date) + " " + str(Time) + "." + "\n"

 # Set up the log file.
 LogFile = file('C:\\PythonScripts\\Analyze\\GIS-' + Date + '.txt', 'w') #Creates a log file with todays date.
 output = open('C:\\PythonScripts\\Analyze\\GIS-' + Date + '.txt', 'w') #Path to log file.
 output.write(str("Process started at " + str(Date) + " " + str(Time) + "." + "\n")) # Write the start time to the log file.


 # Load required toolboxes  (This shouldn't need to be changed unless ArcGIS was
 #                           installed to a different location)
 gp.AddToolbox("F:/Program Files/ArcGIS/ArcToolbox/Toolboxes/Data Management Tools.tbx")

 try:
     # Compress the database
     print "Begining Compress..." + "\n"
     gp.toolbox = "management"
     # For this script to work it will need the full path to the .sde connection file.
     gp.compress("C:\\Documents and Settings\\mlong\\Application Data\\ESRI\\ArcCatalog\\[email protected]")
     print gp.GetMessages() + "\n"
     output.write(gp.GetMessages()+ "\n")

 except:
     #Sets up the email parameters

     From = "Geoprocessor"
     To = ["[email protected]"] # This is the email address that will receive any errors.
     Date = time.ctime(time.time())
     Subject = "Error Compressing the GIS Database"
     Text = gp.GetMessages()

     #Format mail message
     mMessage = ('From: %s\nTo: %s\nDate: %s\nSubject: %s\n%s\n' %
                 (From, To, Date, Subject, Text))
     print 'Connecting to Server'
     s = smtplib.SMTP('machinename.domainname.com') # This needs to be set to your email server.

     #Send Email
     rCode = s.sendmail(From, To, mMessage)
     s.quit()

     if rCode:
         print 'Error Sending Message'
     else:
         print 'Message sent sucessfully'

 analyzeworkspace = "C:\\Documents and Settings\\mlong\\Application Data\\ESRI\\ArcCatalog\\Model Connection.sde"

 try:
     # Loop through and analyze all Feature datasets
     gp.Workspace = analyzeworkspace
     FCList = gp.ListFeatureClasses ("*", "all")
     FC = FCList.Next()
     while FC:
         gp.Analyze_management(FC, "BUSINESS;FEATURE;ADDS;DELETES")
         print gp.GetMessages() + "\n"
         output.write(gp.GetMessages()+ "\n")
         FC = FCList.Next()
     # Loop through and analyze all the Feature classes
     gp.Workspace = analyzeworkspace
     FDList = gp.ListDatasets ("*", "all")
     FD = FDList.Next()
     while FD:
         gp.Analyze_management(FD, "BUSINESS;FEATURE;ADDS;DELETES")
         print gp.GetMessages() + "\n"
         output.write(gp.GetMessages())
         FD = FDList.Next()
     # Loop through and analyze all the Tables.
     # The if-else statements set the script to skip over Multi-Versioned Views.
     gp.Workspace = analyzeworkspace
     TBList = gp.ListTables ("*", "all")
     TB = TBList.Next()
     while TB:
         if '_MVVIEW' in TB:
             print "Skipping Multi-Versioned View"
         elif '_MVView' in TB:
             print "Skipping Multi-Versioned View"
         else:
             gp.Analyze_management(TB, "BUSINESS;FEATURE;ADDS;DELETES")
             print gp.GetMessages() + "\n"
             output.write(gp.GetMessages())
         TB = TBList.Next()

 except:
     print gp.GetMessages()
     output.write(gp.GetMessages())

     #Sets up the email parameters

     From = "Geoprocessor"
     To = ["[email protected]"]
     Date = time.ctime(time.time())
     Subject = "Error Analyzing the GIS Database"
     Text = gp.GetMessages()

     #Format mail message
     mMessage = ('From: %s\nTo: %s\nDate: %s\nSubject: %s\n%s\n' %
                 (From, To, Date, Subject, Text))
     print 'Connecting to Server'
     s = smtplib.SMTP('machinename.domainname.com')

     #Send Email
     rCode = s.sendmail(From, To, mMessage)
     s.quit()

     if rCode:
         print 'Error Sending Message'
     else:
         print 'Message sent sucessfully'

 # Sets the Date & Time since the script started.
 Date = time.strftime("%m-%d-%Y", time.localtime())# Set the date.
 Time = time.strftime("%I:%M:%S %p", time.localtime()) # Set the time.
 output.write(str("Process completed at " + str(Date) + " " + str(Time) + "." + "\n")) # Write the start time to the log file.

 output.close() # Closes the log file.

 print "Process completed at " + str(Date) + " " + str(Time) + "."