1、通过补录地址：http://dc.kportal.*.com:6080/dataCollection/#/
（1）跟踪查看域名解析地址：对应的是地址58.211.*.*:6080——172.18.2.67:6080
（2） 但是这个172.18.2.67:6080是访问不了的。
（3）再次查看172.18.2.67，是haproxy代理，同时也是vip（172.18.2.65，172.18.2.66的虚拟地址）地址，172.18.2.67:6080实际地址为172.18.2.65:6080或172.18.2.66:6080
（4）检查172.18.2.65:6080，172.18.2.66:6080，发现目前2.67指向到172.18.2.66,发现2.66的6080无法访问（2.66是备端），应该是服务没起来；
（5）再检查2.65发现系统无法登录，系统错误，原因为上次停电遗留问题，通过fsck解决；
（6）进入2.65，启动服务，关闭2.66的keepalive服务，让2.67指向2.65，此时2.67:6080服务通了
（7）查看端口使用情况：发现6080，7080，8080，18080，9080等都是通过haproxy代理转发
（8）查看配置文件，都是指向各自服务器；
[root@Bigdata_HAProxy_1_PRD ~]# cat /etc/haproxy.cfg global pidfile /var/run/haproxy.pid chroot /opt/haproxy uid 99 gid 99 daemon nbproc 1 ulimit-n 65536 log 127.0.0.1 local0 info defaults mode tcp option abortonclose #option redispatch retries 2 maxconn 4096 timeout connect 1d timeout client 1d timeout server 1d listen status mode http bind 0.0.0.0:9100 stats enable stats uri /haproxy-stats stats refresh 10s monitor-uri /stats stats auth admin:stats stats show-legends stats admin if TRUE frontend hive-Master-10001 bind *:10001 mode tcp option tcplog maxconn 512 default_backend hive-backend backend hive-backend balance leastconn server Hive_BigDataHadoopNN1PRD 172.18.2.38:10000 check inter 1000 rise 1 fall 10 server Hive_BigDataHadoopNN2PRD 172.18.2.39:10000 check inter 1000 rise 1 fall 10 server Hive_BigDataHadoopCMPRD 172.18.2.50:10000 check inter 1000 rise 1 fall 10 server Hive_BigDataHadoopHS4PRD 172.18.2.73:10000 check inter 1000 rise 1 fall 10 frontend Impala-Master-21051 bind *:21051 mode tcp option tcplog default_backend Impala-backend backend Impala-backend mode tcp balance leastconn server Impala_BigDataHadoopDN1PRD 172.18.2.40:21050 check inter 3000 rise 3 server Impala_BigDataHadoopDN2PRD 172.18.2.41:21050 check inter 3000 rise 3 server Impala_BigDataHadoopDN3PRD 172.18.2.42:21050 check inter 3000 rise 3 server Impala_BigDataHadoopDN4PRD 172.18.2.43:21050 check inter 3000 rise 3 frontend hue-Master-8889 bind *:8889 mode tcp option tcplog maxconn 512 default_backend hue-backend backend hue-backend balance source server hue_BigDataHadoopNN1PRD 172.18.2.38:8888 check inter 1000 rise 1 fall 10 server hue_BigDataHadoopNN2PRD 172.18.2.39:8888 check inter 1000 rise 1 fall 10 frontend namenode-Master-9022 bind 0.0.0.0:9022 mode tcp option tcplog default_backend namenode-backend backend namenode-backend mode tcp balance leastconn #cookie biSRV insert indirect nocache option httpchk GET /jmx?qry=Hadoop:service=NameNode,name=NameNodeStatus http-check expect string active server nn_BigDataHadoopNN1PRD 172.18.2.38:8020 cookie s1 check port 50070 inter 3000 rise 3 server nn_BigDataHadoopNN2PRD 172.18.2.39:8020 cookie s2 check port 50070 inter 3000 rise 3 frontend openldap-389 bind *:389 mode tcp option tcplog default_backend pool_ldap backend pool_ldap balance leastconn mode tcp server ldap_BigData_APP_Clu_1_PRD 172.18.2.44:389 check inter 3000 rise 3 server ldap_BigData_APP_Clu_2_PRD 172.18.2.45:389 check inter 3000 rise 3 frontend portal-7080 bind *:7080 mode http option tcplog default_backend portal-backend backend portal-backend mode http balance source server portal-BigData_APP_Clu_1_PRD 172.18.2.44:7080 check inter 3000 rise 2 server portal-BigData_APP_Clu_2_PRD 172.18.2.45:7080 check inter 3000 rise 2 backup frontend cas-9080 bind *:9080 mode http option tcplog default_backend cas-backend backend cas-backend mode http balance source server cas-BigData_APP_Clu_1_PRD 172.18.2.44:9080 check inter 3000 rise 2 server cas-BigData_APP_Clu_2_PRD 172.18.2.45:9080 check inter 3000 rise 2 backup frontend ceo-9999 bind *:9999 mode http option tcplog default_backend ceo-backend backend ceo-backend mode http balance source server ceo-BigData_APP_Clu_1_PRD 172.18.2.44:9999 check inter 3000 rise 2 server ceo-BigData_APP_Clu_2_PRD 172.18.2.45:9999 check inter 3000 rise 2 frontend YH-BI-8080 bind *:8080 mode http option tcplog default_backend yh-bi-backend backend yh-bi-backend balance source mode http server YH-BI-BigData_YH_Report_1_PRD 172.18.2.51:8080 check inter 3000 rise 2 #server YH-BI-BigData_YH_Report_2_PRD 172.18.2.52:8080 check inter 3000 rise 2 frontend metadata-portal-18080 bind *:18080 mode http option tcplog default_backend metadata-portal-backend backend metadata-portal-backend mode http balance leastconn #server mss-BigData_APP_Clu_3_PRD 172.18.2.46:18080 check inter 3000 rise 2 server metadata-BigData_APP_Clu_4_PRD 172.18.2.47:18080 check inter 3000 rise 2 frontend bl-portal-6080 bind *:6080 mode http option tcplog default_backend bl-backend backend bl-backend mode http balance leastconn server bl-BigData_APP_Clu_3_PRD 172.18.2.46:6080 check inter 3000 rise 2 #server metadata-BigData_APP_Clu_4_PRD 172.18.2.47:18080 check inter 3000 rise 2
（7）登录http://dc.kportal.*.com:6080/dataCollection/#/可以正常访问
2、http://cas.kportal.*.com:9080/
（1）http://kportal.*.com:7080/portal
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