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標題: keepalived+lvs實驗中l(wèi)vs的rr機制沒有輪詢 [打印本頁]

作者: yangqwer123    時間: 2013-11-17 17:40
標題: keepalived+lvs實驗中l(wèi)vs的rr機制沒有輪詢
使用倆臺主機安裝keepalived+lvs,倆臺主機做real server,lvs為DR模式,采用rr機制,測試時發(fā)現(xiàn)對于vip:192.168.122.100的請求都只能發(fā)送到其中一臺real server上,不能交替的發(fā)給后端倆臺real server ,沒有實現(xiàn)輪詢的機制,請指導~


keepalived配置文件
! Configuration File for keepalived

global_defs {

   router_id director1
}



vrrp_instance VI_1 {
    state MASTER
    interface eth0
    virtual_router_id 51
    priority 100
    advert_int 1
    authentication {
        auth_type PASS
        auth_pass 1111
    }
    virtual_ipaddress {
       192.168.122.100
    }
}

virtual_server 192.168.122.100 80 {
    delay_loop 6
    lb_algo rr
    lb_kind DR

    nat_mask 255.255.255.0
    persistence_timeout 50
    protocol TCP
real_server 192.168.122.4 80 {
        weight 1
        HTTP_GET {
            url {
              path /test1.html
              digest 2ee55cb8cb23a5db1580d14aa37a5d27
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }

    real_server 192.168.122.5 80 {
        weight 1
        HTTP_GET {
            url {
              path /test2.html
              digest 8145db84654bc4c9dc5fa077a788c9db
            }
            connect_timeout 3
            nb_get_retry 3
            delay_before_retry 3
        }
    }

}

測試
# ab -c 100 -n 100 http://192.168.122.100/

ipvsadm查詢
Every 0.5s: ipvsadm -Lnc                                                            Sun Nov 17 06:16:34 2013

IPVS connection entries
pro expire state       source             virtual            destination
TCP 01:26  FIN_WAIT    192.168.122.1:39157 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39142 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39105 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39099 192.168.122.100:80 192.168.122.4:80
TCP 01:27  FIN_WAIT    192.168.122.1:39191 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39155 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39123 192.168.122.100:80 192.168.122.4:80
TCP 01:27  FIN_WAIT    192.168.122.1:39180 192.168.122.100:80 192.168.122.4:80
TCP 01:27  FIN_WAIT    192.168.122.1:39188 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39150 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39109 192.168.122.100:80 192.168.122.4:80
TCP 01:27  FIN_WAIT    192.168.122.1:39175 192.168.122.100:80 192.168.122.4:80
TCP 01:27  FIN_WAIT    192.168.122.1:39194 192.168.122.100:80 192.168.122.4:80
TCP 01:27  FIN_WAIT    192.168.122.1:39195 192.168.122.100:80 192.168.122.4:80
TCP 01:26  FIN_WAIT    192.168.122.1:39146 192.168.122.100:80 192.168.122.4:80
..............................

作者: yangqwer123    時間: 2013-11-17 18:24
查到問題了,是persistence_timeout 50保持時間引起的,設置了保持時間,模擬的批量請求在保持時間內(nèi)都被定向到同一臺機器了。




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