Solution : https://service.sap.com/sap/support/notes/1222882 (SAP Service marketplace login required)
Summary :
The SAP System Log (SM21) displays error messages when buffer synchronization discrepancies occur between database processes and buffered updates on tables. The issue arises during UPDATE, MODIFY, or INSERT operations recorded successfully in the database but not yet updated in the corresponding table buffer, leading to error codes such as 64, 8192, and 128, alluding to unmet updates or duplicate keys due to asynchronous buffer updating. The typical synchronization refresh time set is 120 seconds, within which these differences can occur. It’s advised to verify the synchronization settings and reconsider the buffering settings for tables frequently updated across multiple servers.
Key words :
log bzy=> unexpected return code 64 calling buffer mod [dbcrtab#9 @ 4726] [dbcrtab 4726 ]or1b, log bzy=> unexpected return code 8192 calling buffer mod [dbcrtab#9 @ 4726] [dbcrtab 4726 ]or2, log bzy=> unexpected return code 128 calling buffer mod [dbcrtab#6 @ 4625] [dbcrtab 4625 ], unexpected return code 128, bzy unexpected return, unexpected error code 128, buffer synchronization occurs asynchronously, profile parameter rdisp/bufreftime, system log, affected buffer instance
Related Notes :
| 14754 | Profile parameters for buffer synchronization |