Dollar Universe | DQM Fails to Start with Error: "Fatal error: Cannot reorganize DQM data files"
Article ID: 442066
Updated On:
Products
Issue/Introduction
The Distributed Queue Manager (DQM) component does not start successfully.
Expected Behavior: The DQM should start automatically and cleanly alongside other Dollar Universe components.
Actual Behavior: The DQM fails to start, and the following error message is recorded in the universe.log:
| 2026-02-26 12:51:56 |ERROR|X|DQM|pid=9480.1128| Uniservdqm.exe | Fatal error: Cannot reorganize DQM data files. Check File system space or rights on files
Environment
Environment
Application: Dollar Universe Application Server
Version: 7.x
Operating System: Microsoft Windows
Cause
The issue occurs when the Dollar Universe IO server service is configured to run under the built-in Windows LocalSystem account. In certain environments, the LocalSystem account may lack specific file system permissions or be restricted by local security policies from successfully modifying and reorganizing the DQM data files.
When the IO server is instead started using a defined local system user with local Administrator rights, the DQM starts without any issues.
Resolution
To resolve this issue, modify the logon credentials for the IO server service by following the troubleshooting steps below:
Open the Windows Services management console (
services.msc).Locate the Dollar Universe IO server service.
Right-click the service and select Properties.
Go to the Log On tab.
Change the Log on as: option from Local System account to This account.
Provide the credentials of a local system user account that possesses local Administrator rights.
Click Apply and then OK.
Restart the Dollar Universe node/services.
Note: If changing the user account fixes the issue, please investigate your local Windows Security Policies or Group Policies (GPOs) to identify the specific restriction preventing the LocalSystem account from executing these file operations.
Additional Information
The Dollar Universe node is installed on Windows, and the IO server is started as a service. Because child processes (like Uniservdqm.exe) inherit permissions from the parent IO server service, the security context of the startup account directly impacts DQM functionality.
Feedback
