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Tableau Server 2025.3 and newer in Windows: tsm maintenance backup/ziplog fails when specified filename contains CJK characters
Publish Date: Jun 11, 2026
Description
After upgrading Tableau Server from v2024.2.2 to v2025.3.2, various
tsm maintenance commands (such as backup, ziplogs, etc.) now throw an error if the specified filename contains Japanese characters. This syntax worked without any issues in v2024.2 and earlier.Note: This issue has been confirmed to occur on Windows only. Tableau Server running on Linux is not affected.
Error message example:
C:\Windows\system32\tsm maintenance backup -d -f バックアップ.tsbak
An error occurred on the server generating the backup.
See 'C:\ProgramData\Tableau\Tableau Server\data\tabsvc\logs\tabadmincontroller\tabadmincontroller_*.log' on Tableau Server nodes running the Administration Controller process for server log information.
Resolution
Generate the file using an English name, and then rename it to the desired Japanese name using OS commands (either manually or via a script).
Additional Resources
For latest details, please refer to Known Issue page: W-22910075
Knowledge Article Number
005385911
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