How To Fix ESH_SEARCH137 - Sending to HTTP client: HTTP connection received an invalid timeout

SAP Error Message - Details

• Message type: E = Error

• Message class: ESH_SEARCH - ESH Search

• Message number: 137

• Message text: Sending to HTTP client: HTTP connection received an invalid timeout

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.

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Smart SAP Assistant

• What is the cause and solution for SAP error message ESH_SEARCH137 - Sending to HTTP client: HTTP connection received an invalid timeout ?

  The SAP error message ESH_SEARCH137 indicates that there is an issue with the HTTP connection timeout when sending data to an HTTP client. This error typically arises in the context of SAP Enterprise Search or when using HTTP services in SAP systems.
  Cause:
  
  Network Issues: There may be network connectivity problems between the SAP system and the HTTP client.
  Timeout Configuration: The timeout settings on either the SAP server or the HTTP client may be misconfigured or set too low.
  Resource Limitations: The SAP system may be experiencing high load or resource limitations, causing delays in processing requests.
  Firewall or Proxy Settings: Firewalls or proxy servers may be interfering with the HTTP connection, leading to timeouts.
  Incorrect URL or Endpoint: The URL or endpoint being accessed may be incorrect or unreachable.
  
  Solution:
  
  Check Network Connectivity: Ensure that the network connection between the SAP system and the HTTP client is stable and functioning properly.
  Review Timeout Settings: 
  
  Check the timeout settings in the SAP system (e.g., in transaction SICF for HTTP services) and adjust them if necessary.
  Review the timeout settings on the HTTP client side and increase them if they are set too low.
  
  
  Monitor System Performance: Use transaction ST03N or ST06 to monitor system performance and check for any resource bottlenecks. If the system is under heavy load, consider optimizing performance or scaling resources.
  Check Firewall/Proxy Configuration: Ensure that any firewalls or proxy servers are configured correctly to allow traffic between the SAP system and the HTTP client.
  Validate URL/Endpoint: Double-check the URL or endpoint being accessed to ensure it is correct and reachable. You can use tools like curl or Postman to test the endpoint independently.
  Review Logs: Check the SAP application logs (transaction SLG1) and HTTP server logs for any additional error messages or clues that could help diagnose the issue.
  
  Related Information:
  
  SAP Notes: Search for relevant SAP Notes in the SAP Support Portal that may address this specific error or provide additional troubleshooting steps.
  Documentation: Review the official SAP documentation for Enterprise Search and HTTP services for best practices and configuration guidelines.
  Community Forums: Consider checking SAP Community forums or other technical forums for similar issues and solutions shared by other users.
  
  If the problem persists after trying the above solutions, it may be beneficial to engage SAP support for further assistance.