A sort server including a central processing unit, a memory and a network interface configured to interconnect the sort server with a search server, at least one storage system and multiple processing servers using at least one network. The sort server is configured to receive a search result from the search server and to assign multiple tasks to the processing servers. The assignment of the multiple tasks is based on a condition including the search result. Assignment of the tasks to servers may be based on CPU load of at least some of the multiple servers, network architecture, network distance between the servers and the storage system storing the required object, failure information, urgency of the task, Level Agreement associated with the servers and other tasks performed by the servers.