Error 'com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name CONFZDU' appears in logs.
Platform Notice: Data Center Only - This article only applies to Atlassian products on the Data Center platform.
Note that this KB was created for the Data Center version of the product. Data Center KBs for non-Data-Center-specific features may also work for Server versions of the product, however they have not been tested. Support for Server* products ended on February 15th 2024. If you are running a Server product, you can visit the Atlassian Server end of support announcement to review your migration options.
*Except Fisheye and Crucible
Summary
While upgrading to Confluence 7.9 and above, users get this Warning in the logs
1
"com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name 'CONFZDU'"Environment
7.9 and above
Cause
The above mentioned warning is expected and it can be safely ignored. This is in the logs because table is related to the Zero Downtime Upgrade that it included in 7.9+. If you are upgrading from a version lower than 7.9, it is safe to ignore it. You will be getting a message similar to below in logs which say that Unable to determine ZDU status from database. If you are upgrading from a Confluence version prior to 7.9, this is expected.
The complete logs will be similar to the below snippet
1 2[confluence.impl.setup.DefaultBootstrapDatabaseAccessor] readValue Unable to determine ZDU status from database. If you are upgrading from a Confluence version prior to 7.9, this is expected. com.microsoft.sqlserver.jdbc.SQLServerException: Invalid object name 'CONFZDU'.
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