SAP Message RT557 - SAP Buffer: Field description (FieldDescription)

Diagnosis
The FieldDescription buffer (also called FTAB buffer) contains fielddescriptions from the SAP R/3 Repository.
You can set the maximum size of the buffer using system parameterrsdb/ntab/ftabsize. The system sets the maximum number ofentries in the buffer directory depending on the maximum number ofentries in the TableDefinition buffer:
2 * rsdb/ntab/entycount + 1
Specify the value for system parameter rsdb/ntab/ftabsize in kilobytes.
INCLUDE BC_BUFFER_INFO1 OBJECT DOKU ID TX LANGUAGE EN
A typical size setting for the buffer is around 20.000 - 30.000 KB.
INCLUDE BC_BUFFER_INFO2 OBJECT DOKU ID TX LANGUAGE EN