Saving Page Throws Unable to Communicate with Server message when using MS SQL database

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

Problem

When saving a page in Confluence the editor throws the error

1 Unable to communicate with server. Saving is not possible at the moment

The following appears in the atlassian-confluence.log

1 org.springframework.dao.TransientDataAccessResourceException: Hibernate operation: could not execute statement; SQL []; Could not allocate space for object 'db_owner.BANDANA'.'PK__BANDANA__DCCFB4095D97CB68' in database 'confluenceDb' because the 'PRIMARY' filegroup is full

Diagnosis

Environment

  • Confluence is using MS SQL database

Cause

This is caused by filegroup issue which is specific to SQL server

Solution

Workaround

  • Check if the hard drive of the database server still have plenty of space available

  • Delete unnecessary object from your file group

    • Increase the fixed size of your primary filegroup.

  • Check your SQL Server version. SQL Server Express version 2008 and earlier had the limitation of 4GB maximum Database size. SQL Server Express 2008 R2 and onwards have limitation 10GB maximum database size.

Reference:

Updated on April 2, 2025

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