How To Fix SDBALM091 - Number of user tasks in status "Connect Wait"

SAP Error Message - Details

• Message type: E = Error

• Message class: SDBALM - SAP DB and liveCache Alert Monitoring

• Message number: 091

• Message text: Number of user tasks in status "Connect Wait"

Data Collector
<ZH>Collector A</>
(RZ20 -> SAP CCMS Technical Experts Monitors -> All Monitoring Contexts
,,-> <Name of the database connection> -> Collectors and Internals
-> Collectors -> Collector A)

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

Preset runtime interval of Collector A: 5 minutes

Error message extract from SAP system. Copyright SAP SE.

Smart SAP Assistant

• What is the cause and solution for SAP error message SDBALM091 - Number of user tasks in status "Connect Wait" ?

  The SAP error message SDBALM091 indicates that there are too many user tasks in the "Connect Wait" status. This situation typically arises when the SAP system is unable to establish connections to the database or when the database is overloaded, leading to a backlog of user requests waiting for a connection.
  Causes:
  
  Database Connection Limits: The database may have reached its maximum number of allowed connections.
  Long-running Queries: Some queries may be taking too long to execute, causing other requests to wait for a connection.
  Resource Contention: High CPU or memory usage on the database server can lead to slow response times.
  Configuration Issues: Incorrect configuration settings in the SAP system or database can lead to connection issues.
  Network Issues: Problems with the network can also cause delays in establishing connections.
  
  Solutions:
  
  Increase Database Connection Limits: If the database is reaching its connection limit, consider increasing the maximum number of allowed connections in the database configuration.
  Optimize Queries: Analyze and optimize long-running queries to reduce their execution time. Use transaction codes like ST05 (SQL Trace) to identify slow queries.
  Monitor Resource Usage: Check the database server's CPU, memory, and disk usage. If resources are maxed out, consider upgrading the hardware or optimizing the database.
  Adjust SAP Parameters: Review and adjust relevant SAP parameters, such as rdisp/max_wprun_time, to ensure that user tasks are not waiting too long.
  Check Network Configuration: Ensure that there are no network issues affecting the connection between the SAP application server and the database.
  Restart Services: In some cases, restarting the SAP application server or the database server can help clear up connection issues.
  
  Related Information:
  
  Transaction Codes: Use transaction codes like SM50 (to monitor work processes) and SM66 (to monitor global work processes) to get insights into the current status of user tasks.
  Database Monitoring Tools: Utilize database monitoring tools to analyze performance and identify bottlenecks.
  SAP Notes: Check SAP Notes for any known issues or patches related to this error message.
  Documentation: Refer to SAP documentation for best practices on database performance tuning and connection management.
  
  By addressing the underlying causes and implementing the suggested solutions, you should be able to resolve the SDBALM091 error and improve the overall performance of your SAP system.