Solution : https://service.sap.com/sap/support/notes/1224682 (SAP Service marketplace login required)
Summary :
To investigate and modify table EWUCLCT settings for optimized parallel processing in SAP environments, SAP Note elaborates on potential incorrect entries detection, their implications during the CONVERSION phase, and appropriate corrections. The provided solution includes implementing report 'ZCNV_CHECK_CLUSIZE_HWU', which aids in determining suitable settings for CLU_SIZE and COM_BLOCK to ensure efficient parallel processing and update jobs. Recommendations for modifying parameters like TASK_NUMB, JOB_NUMB, and XPARLOCK, alongside execution guidance, are detailed, ensuring proper adjustment of table settings before and potentially during CONVERSION phases for optimal performance and stability.
Key words :
paket tabname clu_size com_block task_numb job_numb parabclu xparlock150 bkpf 00300000 00060000 04 04 0020since, paket tabname clu_size com_block task_numb job_numb parabclu xparlock150 bkpf 00000020 00000004 04 04 0020, tab_name glpca clu_size 99990000 com_block 00100000 task_numb 04 job_numb 04 parabclu 0020 xparlock, fields- clu_size- task_numb- job_numb- parabclu- xparlockcan, test system production system data volume 181209319 183415423 number, table ewuclstat field high-limit, 'select count' takes place, deactivate parallel processing explicitly, task_numb = '00' - selection task, ewuclstat-limit-high
Related Notes :
| 1539473 | LCC optimization - General questions/answers (FAQ) |
| 495176 | Euro chngvr:termtn: No Clusterblocks written for table BKPF |
| 433167 | Cluster euro: REUCLDOC does not write any clusters |
| 400488 | Changes in EWUCLCT during the conversion phase? |
| 397398 | Cluster: enqueue problem in the syslog is recognizable |
| 384167 | Buffer synchronization; deactivate buffering for table ... |
| 315196 | Cluster: Restart after system shutdown in Conversion phase |
| 204338 | Problems with table EWUCLU after upgrade/euro changeover |
| 202780 | Termin. VBAK, VBRK, EIKP, EKKO, AUAK due to memory overflow |
| 189908 | Cluster: Change by means of program ZEWUCLCT |
| 183158 | LC changeover to euro: Cluster functions |
| 181476 | Cluster:Parallel processing on table level, performance |
| 173993 | Cluster: System settings during Euro LC changeover |
| 173846 | Cluster: Deadlock occurred in phase CONVERSION |
| 168728 | Cluster: No. of clusters exceeds maximum |