Solution : https://service.sap.com/sap/support/notes/134079 (SAP Service marketplace login required)
Key words : 
additional key words local currency changeover, local currency changeover terminates, parameter rec/client, lock overflow, data record, lock entry, limited number, termination occurs, application servers, maximum number
Related Notes : 
       
| 173993 | Cluster: System settings during Euro LC changeover | 
| 136717 | Runtime forecast: data security | 
| 121245 | System settings for local currency changeover to euro | 
| 115085 |