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Message type: E = Error
Message class: SHTTP - Messages for Development Class SHTTP
Message number: 801
Message text: Could not lock alias & & &
A record already exists in the lock table for this entry.
The entry is not processed.
Use transaction SM12 to delete the lock entry manually.
To do this, enter the value 'ICFALIAS' in the <LS>Table Name</> field of
the selection screen.
Then schedule the XPRA report RSXPRARFCICF again as a background job.
Error message extract from SAP system. Copyright SAP SE.
SHTTP801
- Could not lock alias & & & ?The SAP error message SHTTP801 with the description "Could not lock alias & & &" typically occurs in the context of the SAP Web Application Server (WAS) or when dealing with the SAP Internet Communication Framework (ICF). This error indicates that the system is unable to lock a specific alias, which is often related to issues with the configuration of the HTTP services or the underlying transport layer.
Causes:
- Concurrency Issues: The alias might be locked by another process or user, preventing the current process from acquiring the lock.
- Configuration Errors: There may be misconfigurations in the HTTP service settings or the ICF nodes.
- Resource Limitations: The system may be running out of resources, such as memory or file handles, which can prevent it from locking the alias.
- Database Locks: If the alias is related to database entries, there might be locks at the database level that are causing this issue.
- Transport Layer Issues: Problems with the transport layer or network issues can also lead to this error.
Solutions:
- Check for Active Processes: Use transaction codes like SM50 or SM66 to check if there are any active processes that might be holding the lock on the alias. If you find any, you may need to terminate them if they are not needed.
- Review ICF Configuration: Go to transaction SICF and check the configuration of the ICF nodes. Ensure that the aliases are correctly configured and not conflicting with other services.
- Restart HTTP Services: Sometimes, simply restarting the HTTP services can resolve locking issues. You can do this through transaction SMICM.
- Check System Resources: Monitor system resources to ensure that there are no limitations. You can use transaction ST02 (buffer management) and ST06 (OS monitoring) to check for memory and CPU usage.
- Database Locks: If the alias is related to database entries, check for any locks in the database using transaction SM12. If necessary, release the locks.
- Review Logs: Check the developer traces (transaction ST11) and the ICM logs for any additional error messages that might provide more context about the issue.
Related Information:
If the problem persists after trying the above solutions, it may be necessary to contact SAP support for further assistance.
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