To avoid the error in the future, implement these practices:
telnet <database_host> <port> or nc -zv <host> <port> Default ports: To avoid the error in the future, implement
jdbc:oracle:thin:@hostname:1521/service_name If the error is intermittent or user-specific, check
The error code is a generic connection failure in IBM Cognos Analytics that indicates the Extensible Query Engine (XQE) could not establish a connection to your data server via JDBC . While the message prompts you to check the database server, the root cause often lies within the Cognos environment configuration, such as misplaced drivers, incorrect connection parameters, or specific software bugs. Common Causes of XQE-JDB-0001 implement these practices: telnet <
Check DB error logs ( /var/log/postgresql/ , /var/log/mysql/ , etc.) for crashes or corruption.
If the error is intermittent or user-specific, check if switching the user's locale to English resolves the issue.
Because the error message explicitly advises you to the root cause is likely environmental rather than a software bug.