How To Fix W_1005 - Server group not maintained, all servers are in use

SAP Error Message - Details

• Message type: E = Error

• Message class: W_1 - Message Class for WPOSA

• Message number: 005

• Message text: Server group not maintained, all servers are in use

Self-Explanatory Message

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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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message W_1005 - Server group not maintained, all servers are in use ?

  Certainly! Here's a detailed explanation for the SAP error message:
  
  SAP Error Message:
  W_1005 Server group not maintained, all servers are in use
  
  Cause:
  This warning message typically occurs when a user tries to log on to an SAP system, and the system cannot allocate a dialog work process because:
  
  The server group specified in the logon parameters or in the SAP GUI is not maintained or configured properly.
  All the dialog work processes in the specified server group are currently busy or in use.
  The system cannot find an available server/work process to handle the user’s request.
  
  In other words, the system tries to assign the user session to a particular server group, but either the group does not exist or all servers in that group are fully occupied.
  
  Explanation:
  
  Server groups are logical groupings of application servers in an SAP system.
  They are used to control load balancing and user distribution across servers.
  If the server group is not maintained or all servers in the group are busy, the system cannot allocate a dialog work process for the user.
  
  
  Solution:
  
  
  Check Server Group Configuration:
  
  Go to transaction RZ12 (Maintain Server Groups).
  Verify if the server group mentioned in the error message exists.
  If it does not exist, create and maintain the server group properly.
  If it exists, check which application servers are assigned to this group.
  
  
  
  Check Server Availability:
  
  Use transaction SM51 to check the status of application servers.
  Verify if the servers in the group are up and running.
  Check if the dialog work processes are free or all busy.
  
  
  
  Adjust Server Group Assignment:
  
  If the server group is not needed or incorrectly assigned, remove or change the server group in the user logon parameters.
  In SAP GUI, when logging on, you can specify the server group. Make sure it is correct or leave it blank to allow the system to assign any available server.
  
  
  
  Increase Number of Dialog Work Processes:
  
  If all servers are busy, consider increasing the number of dialog work processes on the application servers.
  This requires system administration and might involve changing profile parameters (e.g., rdisp/wp_no_dia).
  
  
  
  Load Balancing and Dispatcher Configuration:
  
  Check the dispatcher and load balancing settings.
  Ensure that the dispatcher is properly distributing user sessions across servers.
  
  
  
  Restart Servers if Necessary:
  
  If servers are unresponsive or stuck, a restart of the application servers might be required.
  
  
  
  
  Related Information:
  
  
  Transaction Codes:
  
  RZ12 - Maintain Server Groups
  SM51 - List of Application Servers
  SM50 - Work Process Overview (to check busy processes)
  SM66 - Global Work Process Overview
  
  
  
  Profile Parameters:
  
  rdisp/wp_no_dia - Number of dialog work processes
  rdisp/wp_no_btc - Number of background work processes
  
  
  
  SAP Notes:
  
  Check SAP Notes related to server groups and dialog work process allocation for your specific SAP version.
  
  
  
  User Logon:
  
  When logging on via SAP GUI, the server group can be specified in the logon pad or connection properties. Ensure this is correct.
  
  
  
  
  Summary:
  
  
  
  Aspect
  Details
  
  
  
  
  Cause
  Server group not maintained or all servers in the group are busy (no free dialog process)
  
  
  Solution
  Maintain server group (RZ12), check server status (SM51), increase dialog processes, adjust logon parameters
  
  
  Related Info
  Transactions: RZ12, SM51, SM50; Profile parameters: rdisp/wp_no_dia; SAP Notes on server groups
  
  
  
  
  If you need help with specific steps or commands, feel free to ask!