Error
Error Code:
5540
SAP S/4HANA Error 5540: Text Preprocessor Communication Failure
Description
This error indicates that the SAP S/4HANA system is unable to establish a connection with the text preprocessor service. This service is essential for processing and analyzing text data, often used in features like search, analytics, or intelligent document processing. It typically occurs when the preprocessor service is unavailable, misconfigured, or network issues prevent communication.
Error Message
ERR_TEXT_PREPROCESSOR_NOT_REACHABLE
Known Causes
4 known causesPreprocessor Service Unavailable
The dedicated text preprocessor service or its underlying server is not running, has crashed, or is undergoing maintenance.
Network Communication Failure
Network problems, such as firewall blocks, incorrect routing, or temporary outages, are preventing the SAP S/4HANA system from reaching the preprocessor.
Misconfigured Preprocessor Settings
The SAP S/4HANA system's configuration for connecting to the text preprocessor service contains incorrect hostnames, ports, or authentication details.
Server Resource Exhaustion
The server hosting the text preprocessor service is overloaded, out of memory, or experiencing high CPU usage, preventing it from responding to requests.
Solutions
3 solutions available1. Verify Text Preprocessor Service Status easy
Checks if the Text Preprocessor service is running and restarts it if necessary.
1
Log in to your SAP S/4HANA application server using an administrator account.
2
Open the SAP Transaction SM51 to view the available application servers and their status.
3
Locate the application server where the Text Preprocessor is expected to run. Look for services related to 'Text Preprocessor' or 'TP_SERVER'.
4
If the service is not running, select it and use the 'Restart' or 'Start' option from the menu.
5
After restarting, attempt the operation that previously failed to see if the error is resolved.
2. Check Network Connectivity to Text Preprocessor Host medium
Ensures that the SAP S/4HANA system can reach the host where the Text Preprocessor service is running.
1
Identify the host name or IP address and the port number for the Text Preprocessor service. This information is typically found in the SAP system's instance profile parameters (e.g., `rdisp/tp_server_host`, `rdisp/tp_server_port`) or in the Text Preprocessor configuration itself.
2
Log in to the SAP application server or a client machine that has network access to the Text Preprocessor host.
3
Use the `ping` command to verify basic network reachability to the Text Preprocessor host.
ping <text_preprocessor_host_ip_or_hostname>4
Use a tool like `telnet` or `nc` (netcat) to test connectivity to the specific port the Text Preprocessor is listening on.
telnet <text_preprocessor_host_ip_or_hostname> <text_preprocessor_port>5
If connectivity fails, investigate network firewalls, routing issues, or host-based firewalls on both the SAP server and the Text Preprocessor host. Ensure the required ports are open.
3. Review Text Preprocessor Configuration and Logs advanced
Examines the configuration of the Text Preprocessor and its associated logs for specific error details.
1
Access the SAP system and navigate to transaction `SM21` (System Log) and `ST22` (ABAP Runtime Errors) to look for any related errors or dumps that occurred around the time of the Text Preprocessor communication failure.
2
Consult the Text Preprocessor's own log files. The location of these logs depends on the Text Preprocessor implementation. For SAP's native Text Preprocessor, this might involve checking the work process trace files (`dev_w*`) or specific Text Preprocessor log directories on the operating system level.
3
Examine the SAP instance profile parameters related to the Text Preprocessor. Key parameters might include `rdisp/tp_server_host`, `rdisp/tp_server_port`, `rdisp/tp_server_max_conn`, and `rdisp/tp_server_timeout`. Ensure these are correctly configured.
4
If the Text Preprocessor is a third-party component, refer to its specific documentation for log file locations and configuration parameters. Contact the vendor if necessary.
5
Based on the log entries and configuration review, adjust parameters or address any detected issues in the Text Preprocessor's setup.