Message type: E = Error
Message class: GT - Database utilities
Message number: 324
Message text: DDL lock set by tp (D0GEN)
An entry that represents a lock for DDL statements was found in table
D0GEN. This lock is normally set by program tp.
The request is not executed because it also results in DDL statements.
Please read Note 102069 or the section about "tp impsync" in the
documentation for program tp.
The system issues an error message and will not allow you to continue with this transaction until the error is resolved.
Error message extract from SAP system. Copyright SAP SE.
GT324
- DDL lock set by tp (D0GEN) ?The SAP error message GT324, which indicates a "DDL lock set by tp (D0GEN)," typically occurs during database operations when a Data Definition Language (DDL) statement is trying to access a database object that is currently locked by another process. This can happen during transport operations, especially when multiple transports are being executed simultaneously or when a long-running DDL operation is in progress.
Cause: Concurrent DDL Operations: Multiple DDL statements trying to access the same database object at the same time can lead to locks. Long-Running Transactions: A transaction that takes a long time to complete can hold a lock on a database object, preventing other operations from proceeding. Transport Layer Issues: If the transport process (tp) is trying to execute a DDL operation while another transport or database operation is still in progress, it can lead to this error.
Solution: Wait and Retry: Often, the simplest solution is to wait for the current DDL operation
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