Solution : https://service.sap.com/sap/support/notes/502934 (SAP Service marketplace login required)
Key words : 
apo master data maintenance, livecache solution import sapapo 3, create calendar mixed resources, excessive capacity consumption, constant quantity assignments, /general/sapdb/lc_versions/74, full/apo3105/< platform>/, livecache server platform, reducing memory requirement, 6d patch level 536
Related Notes : 
       
| 516145 | More than 2 GB memory for liveCache on DEC UNIX | 
| 505109 | APO Support Package 04 for APO Release 3.1 | 
| 487972 | Operating system parameterization of liveCache | 
| 452342 | Application terminates with message -602 or -8006 | 
| 395695 | Short dump during planning run with SQL erro -862 | 
| 325402 | dbadaslib/dbsdbslib: How do I apply a patch? |