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Title
When running Verify Settings, the A/V Scan starts but never stops -
Description
An issue has been identified that may occur when the Forest Recovery Console attempts to extract components from a backup file before running an antivirus scan. The antivirus scan may hang in situations where there are several SYSVOL files. RMAD communicates with a background thread that performs the actual extraction/scan which can cause the message queue to get overloaded. -
Cause
USERPostMessage queue will get overloaded as for each file in SYSVOL, RMAD is sending a few messages to the queue. If the queue is overloaded, the AV scan or backup extraction will never finish.
Example log:
Start:
VERBOSE: RmadBackupManager.GetBackups(): Malware scan info: SecurityStatus_Unknown, 12/30/1899 00:00:00
VERBOSE: RmadBackupManager.GetBackups(): Processing backup <timestamp>, <FQDN>, <Location of the backup>
Indications of AV hanging, infinite lines of:
VERBOSE: ProjectService.GetProjectSummary(): Getting project summary...
VERBOSE: ProjectService.GetProjectSummary(): Project summary ready. Status: InProgress
Cancelling the verification:
VERBOSE: ProjectService.GetProjectSummary(): Getting project summary...
VERBOSE: ProjectService.GetProjectSummary(): Project summary ready. Status: Canceling
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Resolution
By default, the default registry setting of USERPostMessageLimit is 10 000 (decimal). Depending how many files are in the SYSVOL, the limit can be adjusted accordingly.
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Windows
USERPostMessageLimit
Restart the machine are re-run the Project Verification
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Defect ID
480750 -
Additional Information
Product Defect 480750 will be added under Known issues in Release notes.