Delay in heartbeat service to be started on other server

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http://serverfault.com – I am using the heartbeat configuration on two of my servers as it is recommended The only difference is I am sending requests using ab command. # ab -n 10000 -r http://"hostname" initially requests goes to server 1 without ny prob bt once its heartbeat service is stopped, requests are lost and it takes about 4 min for the requests to be accepted by server 2. meanwhile logs of ab command in verbose mode shows - apr_socket_recv: Connection refused(111) for few seconds after the heartbeat on server1 is down then - apr_socket_recv: Connection Timed out(110) and then - apr_socket_recv: No r (HowTos)