Solution : https://service.sap.com/sap/support/notes/523568 (SAP Service marketplace login required)
Key words : 
recent files inj2ee/cluster/server/managers/console_logscalled <date>_<time>_output, propertiesand put therecoreloadtimeout = 300additionalloadtimeout = 300instead ofcoreloadtimeout = 120additionalloadtimeout = 40 save, solution edit filej2ee/cluster/server/managers/settings/servicemanager, filej2ee/cluster/server/managers/settings/servicemanager, terms jco rfc timeout security dbms reason, <date>_<time>_error, j2ee service managers raises, j2ee timeout < jco timeout, j2ee timeout > jco timeout, time j2ee engine starts
Related Notes : 
       
| 620103 | SAP Exchange Infrastructure 2.0 SR1 Installation | 
| 557414 | SAP Exchange Infrastructure 2.0 Installation |