Error
Error Code:
4704
SAP S/4HANA Error 4704: General DPSERVER Issue
Description
This error indicates a broad problem with the Data Processing Server (dpserver) component within SAP S/4HANA. It typically occurs when the dpserver fails to perform its essential data processing and communication functions, potentially affecting system performance or transaction execution.
Error Message
ERR_DPSERVER
Known Causes
4 known causesNetwork Communication Failure
The dpserver is unable to establish or maintain a stable network connection with other SAP components or the database server.
System Resource Exhaustion
The server hosting the dpserver process lacks sufficient CPU, memory, or disk I/O resources to operate correctly.
DPSERVER Configuration Error
Incorrect or inconsistent configuration parameters for the dpserver component within the SAP system.
Database Connectivity Problem
The dpserver cannot connect to or retrieve necessary data from the underlying SAP database.
Solutions
3 solutions available1. Verify and Restart SAP Application Server Instances easy
Ensures the SAP application servers and their associated DPSERVER processes are running correctly.
1
Log in to your SAP S/4HANA system using SAP GUI or a system administration tool.
2
Access the System Status transaction (SM51).
3
Review the list of application servers. Ensure all relevant instances are active.
4
If any instances appear inactive or are showing errors, restart them. This can typically be done through the SAP Management Console (SMC) or by using operating system commands.
Example (Linux/Unix, replace <SID> and <InstanceNumber>):
sudo su - <sid>adm
stop <sid>_<InstanceNumber>
start <sid>_<InstanceNumber>5
Check the SAP trace files (dev_w* and gw*) for specific errors related to the DPSERVER process after restarting.
2. Check SAP Gateway (gwrd) and its Configuration medium
Troubleshoots issues with the SAP Gateway, which is crucial for inter-process communication.
1
Log in to your SAP S/4HANA system.
2
Execute transaction SMGW to access the Gateway Monitor.
3
Verify that the Gateway is running and registered correctly. Look for any error messages or warnings in the Gateway Monitor.
4
Check the Gateway's registration list. Ensure that all necessary SAP instances and RFC destinations are registered.
5
Examine the gateway trace files (gwrd.trc) on the application server for detailed error information. These are usually located in the work directory of the instance.
6
If the Gateway process is not running, restart it using the operating system commands for your SAP system's application server.
Example (Linux/Unix, replace <SID> and <InstanceNumber>):
sudo su - <sid>adm
startsap GW7
Review the SAP Gateway configuration parameters in transaction RZ10 (e.g., `gw/acl_mode`, `gw/reg_info`). Ensure they are set appropriately and allow necessary connections.
3. Analyze SAP Work Process Traces and System Logs advanced
Performs a deep dive into system logs and trace files to pinpoint the root cause of the DPSERVER issue.
1
Log in to your SAP S/4HANA system.
2
Access the System Log (SM21) and filter for entries related to 'DPSERVER' or any error messages occurring around the time of the 'ERR_DPSERVER' error.
3
Identify the specific application server instance and work process that reported the error.
4
Navigate to the work directory of the affected application server instance. This is typically found in the SAP instance profile.
5
Examine the work process trace files (e.g., `dev_w<nn>`, where <nn> is the work process number) and the Gateway trace files (`gwrd.trc`). Look for detailed error messages, stack traces, or memory dumps.
6
If memory issues are suspected, check the work process memory usage in SM50 or SM66 and compare it with the configured memory limits (e.g., `ztta/roll_area`).
7
Analyze the trace files for any indications of network connectivity problems, RFC errors, or issues with external programs that the DPSERVER process interacts with.
8
Consult SAP Notes related to 'ERR_DPSERVER' and the specific error messages found in the trace files. These notes often provide detailed troubleshooting steps and potential solutions.