Solution : https://service.sap.com/sap/support/notes/36283 (SAP Service marketplace login required)
Summary :
SAP Note outlines buffer synchronization in SAP systems where changes to buffered objects are recorded in Table DDLOG. Application servers periodically read this table to update local buffers, regulated by profile parameter rsvp/bufreftime set with a minimum limit of 60 seconds to optimize performance. In centralized setups, the parameter rdisp/bufrefmode should be set to "sendoff,exeauto" to avoid unnecessary logging in DDauto. Issues may arise when buffered data modifications do not reflect across servers or result in different outputs, potentially due to improper settings of rdisp/bufrefmode or errors like BY4 due to failed DDLOG insertions. Solutions include setting correct profile parameters, addressing database insert errors, and ensuring accurate system configuration.
Key words :
specific error symptoms error message by4, profile parameter rdisp/bufreftime, profile parameter rdisp/bufrefmode, general error symptoms modifications, specific error symptoms, command truncate table ddlog, error message ora-2289, symptom introductory remarks, solution program rsdbbuff, current change requests
Related Notes :
| 1054534 | Automatic corrections for buffer synchronization parameters |
| 1011158 | Table buffering on a SAP instance. |
| 841938 | DB2/DB4/DB6: Buffer synchronisation between dw, tp & R3trans |
| 815054 | |
| 706478 | Preventing Basis tables from increasing considerably |
| 185821 | ORA-2289 during insert on DDLOG |
| 67211 | Inconsistencies after program or DDIC changes |
| 47239 | Behavior of the table buffers |
| 45456 | Synchronization in transport: Overview (3.0/3.1) |
| 14754 | Profile parameters for buffer synchronization |