How To Fix DBOSC660 - Error while using SQL connection (&1); too many consecutive failures

SAP Error Message - Details

• Message type: E = Error

• Message class: DBOSC -

• Message number: 660

• Message text: Error while using SQL connection (&1); too many consecutive failures

Self-Explanatory Message

Since SAP believes that this specific error message is 'self-explanatory,' no more information has been given.The majority of messages in the SAP system have a message text, however this is frequently insufficient to comprehend or resolve the problem.

To make things easier, more detailed information is frequently added to describe the issue, how to fix it, and the necessary steps or configuration modifications.

Unfortunately, there isn't any extra information in this error notice.

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Smart SAP Assistant

• What is the cause and solution for SAP error message DBOSC660 - Error while using SQL connection (&1); too many consecutive failures ?

  The SAP error message DBOSC660 indicates that there have been too many consecutive failures when trying to establish a SQL connection to the database. This error typically arises in scenarios where the database connection is unstable or there are issues with the database server itself.
  Causes:
  
  Database Server Unavailability: The database server may be down or not reachable due to network issues.
  Configuration Issues: Incorrect database connection parameters (like hostname, port, username, or password) can lead to connection failures.
  Resource Limitations: The database server may be overloaded or running out of resources (e.g., memory, connections).
  Firewall or Security Settings: Firewalls or security settings may be blocking the connection attempts.
  Database Locking: The database may be locked or in a state that prevents new connections.
  Timeout Settings: Connection timeout settings may be too low, causing premature failures.
  
  Solutions:
  
  Check Database Status: Ensure that the database server is up and running. You can do this by trying to connect to the database using a different client or tool.
  Verify Connection Parameters: Double-check the connection parameters in your SAP configuration (e.g., DB connection settings in the SAP system).
  Monitor Database Resources: Use database monitoring tools to check for resource usage and identify any bottlenecks.
  Review Firewall Settings: Ensure that the necessary ports are open and that there are no firewall rules blocking the connection.
  Increase Connection Limits: If the database is hitting connection limits, consider increasing the maximum number of allowed connections.
  Adjust Timeout Settings: If applicable, increase the timeout settings for the database connection in the SAP configuration.
  Check Logs: Review the database logs and SAP application logs for any additional error messages or warnings that could provide more context on the failures.
  Restart Services: If the issue persists, consider restarting the database service or the SAP application server to clear any transient issues.
  
  Related Information:
  
  SAP Notes: Check SAP Notes related to DBOSC660 for any specific patches or updates that may address this issue.
  Database Documentation: Refer to the documentation for your specific database (e.g., Oracle, SQL Server, HANA) for troubleshooting connection issues.
  SAP Community: Engage with the SAP Community forums to see if other users have encountered similar issues and what solutions they found effective.
  
  If the problem continues after trying the above solutions, it may be necessary to involve your database administrator or SAP support for further investigation.