Solution : https://service.sap.com/sap/support/notes/1488759 (SAP Service marketplace login required)
Key words : 
rsd_trex 159 - der rollup wartet bis zu '&1' minuten, waited rollup job logs finishes red, software component   sap_bw                        business inform, parallel rollup finishes successfully, rsd_trex 159 - rollup waits, process finish red, symptom rollup wait, sapbwnews nw bw 7, manual pre-implement, release 700          sapkw70018 - sapkw70024
Related Notes : 
       
| 1471463 | SAPBWNews NW BW 7.01 ABAP SP08 | 
| 1468668 | SAPBWNews NW7.0 BW ABAP Support Package 25 | 
| 1459943 | Rollup Wait time | 
| 1450990 | SAPBWNews NW BW 7.02 ABAP SP05 | 
| 1392433 | SAPBINews NW7.11 BW ABAP Support Package 05 |