Solution : https://service.sap.com/sap/support/notes/1038939 (SAP Service marketplace login required)
Key words :
RKEREOCE4, COPA1_XXXX, COPAC_XXXX, archiving, ORA-1555, rollback segments, snapshot too old, TSV_LIN_ALLOC_FAILED, performance
Related Notes :
1344557 | RKEREOCE4_EXTRACT: TSV_TNEW_PAGE_ALLOC_FAILED |
480180 | Download and installation of attachments for SAP notes |
383728 | Archiving profitability segments |
13719 | Preliminary transports to customers (note for customers) |