Solution : https://service.sap.com/sap/support/notes/16244 (SAP Service marketplace login required)
Summary :
Transaction ST02 may display nametab buffer overflow (swaps) if configured with insufficient buffer size, particularly under high load or long runtimes. Nametab buffer, crucial for storing nametab entries related to table descriptions, swivels out entries using a Least Recently Used (LRU) mechanism which becomes visible when 'Objects swapped' exceed zero. To resolve, adjust SAP profile parameters: 'rsdb/ntab/entrycount', 'rsdb/ntab/ftabsize', 'rsdb/ntab/sntabsize', and 'rsdb/ntab/irbdsize'. These parameters directly influence the buffer sizes for directory entries, field catalog, short nametab, and initial record. For kernel-specific buffer calculations and consideration of shared memory adjustments, see specific kernel version details and caution notes on potentially impacting system's shared memory allocation.
Key words :
higher ttab rsdb/ntab/entrycount rsdb/ntab/entrycount ftab 2 rsdb/ntab/entrycount rsdb/ntab/entrycount sntab 2 rsdb/ntab/entrycount rsdb/ntab/entrycount/4 irbd 2 rsdb/ntab/entrycount rsdb/ntab/entrycount/4, symptom transaction st02 displays nametab buffer overflows, rsdb/ntab/entrycount, rsdb/ntab/ftabsize, rsdb/ntab/sntabsize, rsdb/ntab/irbdsize, rsdb/ntab/irdbsize, / 1024 ftab buffer =, / 1024 irbd buffer =, / 1024 sntab buffer=
Related Notes :
| 849454 | Documentation for the rsdb/ntab/entrycount profile parameter |
| 670505 | Maximum size of name tab buffer |
| 33873 | What do the semaphores mean? |