Unable to view Question tab

Symptoms

The following appears in the atlassian-confluence.log:

caused by: com.atlassian.confluence.plugins.questions.api.exception.InfrastructureException: Error getting recent question ids
at com.atlassian.confluence.plugins.questions.contenttype.repository.ContentTypeQuestionRepository.getRecentQuestionsIds(ContentTypeQuestionRepository.java:646)
caused by: net.sf.hibernate.exception.GenericJDBCException: Could not execute query
at net.sf.hibernate.exception.ErrorCodeConverter.handledNonSpecificException(ErrorCodeConverter.java:90)
caused by: java.sql.SQLSyntaxErrorException: ORA-01795: maximum number of expressions in a list is 1000


The following appears in the page:

Diagnosis

User using Oracle and installed Confluence Questions

Cause

When user is in a group which consist of 16000 user they will face this error.

Workaround

There is 2 workaround for this issue:

  1. Use different database such as MySql and PostgreSQL.
  2. Reduce the number of the user in a group to 1500 and below.

Resolution

Upgrade Confluence Questions. See CONFSERVER-47773 - Getting system error on main Questions page when in Oracle and user has access to more than 1000 spaces.

 
Last modified on Jan 31, 2025

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