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Event ID 670 — Federation Service Proxy Logging

  • Article

Applies To: Windows Server 2008

You can use Active Directory Federation Services (AD FS) log files to troubleshoot issues with the federation server proxy. The creation and updating of AD FS log files are monitored here.

Event Details

Product: Windows Operating System
ID: 670
Source: Microsoft-Windows-ADFS
Version: 6.0
Symbolic Name: LogFileCollision
Message: The AD FS troubleshooting log detected that the maximum file size cannot be enforced given the current traffic level and troubleshooting verbosity.
Directory: %2
MaxFileSize: %3

The file names that are assigned to the log files have a resolution of one second. The number of bytes that is being written to the file in a second is greater than the value of MaxFileSize. This condition can have performance implications. This event will recur every %1 minutes until the condition is corrected.
Retry period: %1

User Action
Decrease troubleshooting verbosity or increase the value of MaxFileSize.

Resolve

Decrease troubleshooting verbosity

To perform this procedure, you must be a member of the local Administrators group, or you must have been delegated the appropriate authority.

To decrease troubleshooting verbosity

  1. Open the Active Directory Federation Services snap-in.
  2. Right-click the Federation Service folder, and then click Properties.
  3. Click the Troubleshooting tab, and then clear the appropriate check boxes to decrease troubleshooting verbosity.

Verify

Verify that Active Directory Federation Services (AD FS) log files have been generated in the log files directory.

To perform this procedure, you must be a member of the local Administrators group, or you must have been delegated the appropriate authority.

To locate the log files directory

  1. On the federation server, click Start, point to Administrative Tools, and then click Active Directory Federation Services.
  2. In the console tree, right-click Federation Service and then click Properties.
  3. On the Troubleshooting tab, check the location of the log files under Log files directory.

Federation Service Proxy Logging

Active Directory Federation Services