Possible Loss of Transactions in the Microsoft Metadirectory Services (263954)

SUMMARY

The Microsoft Metadirectory Services (MMS) Management Agent (MA) log reports the following message:

Export DELTA START: 981022113642-0400 ---- END: 981030103914-0500.
WARNING: Possible loss of transactions [Thu May 22 11:36:42 1999 - Fri May 23 21:16:49 1999]

The message suggests that the configuration of the transaction stack is too small. This means that the transaction stack does not contain transactions from the last update time that the MA made to the Connected Directory. This behavior occurs when the transaction stack rolls over.

MORE INFORMATION

In view of this behavior, you need to perform a full synchronization at least once to issue possible updates that were not available in the transaction stack.

You are able to vary the configuration of the size of the transaction stack. To configure the size of the transaction stack, the db5cfg file must be edited. The db5cfg file is located in the \zoomserv\data\config directory.

The default size of the transaction stack in MMS 2.1 is 64 megabytes. The maximum size of the stack is 1 gigabyte. In MMS 2.2, the default size of the transaction stack is 512 megabytes.

To edit the db5cfg file:

Stop the MMS service.
Locate the file in the \zoomserv\data\config directory.
Open the file with a text editor.
Increase the size of the transaction stack. By default, it is set to 64000000 (or 64 megabytes). For example, changing the value to 256000000 will save 256MB of transactions. It may be necessary to try several values until a value large enough is found.

Below is a sample file. In this example, the stack is being set to 64 megabytes.

   ######################################################################
   # FILE:  db5cfg                                                      #
   # DATABASE CONFIGURATION FILE                                        #
   ######################################################################
   #
   context_prefix                  dc=microsoft,dc=com
   db5_local_dsa_name       
   DsaName=test,ou=Applications,dc=microsoft,dc=com
   db5_local_mta_name
   MtaName=MtaName,ou=Applications,dc=microsoft,dc=com
   db5_local_x400_domain_name      p=yourPRMD/a=yourADMD/c=yourCo
   db5_local_x400_msg_id_sig       uniqueID
   #db5_rel_db_dir 	           path_to_directory
   #db5_asn_db_dir      	   path_to_directory
   #db5_hash_db_dir     	   path_to_directory
   #db5_tran_db_dir     	   path_to_directory
   #db5_fileattr_dir    	   path_to_directory
   db5_max_tran_file_size          64000000   (SET THE VALUE HERE)
   maximum_adminpoints_cached      360
   maximum_adminlinks_cached       4096
   hostname       test.microsoft.com
   Installed      2.1 Build 0804.000 04/26/2000 11:36:07
   Upgraded       05/09/2000 14:20:16 to 2.2 Build 0504.1085