问题描述

keepalived+twemproxy +redis问题求教

自己搭了玩的，2台虚拟机
10.20.71.150（redis2个实例分别是端口63796389 twemproxy 监听22122 -s22222
此外还有keepalived （只装了这一个没有master/slave。就有问题了））
10.20.71.161（redis2个实例分别是端口63796389 twemproxy 监听22122 -s22222）
VIP：10.20.71.65
集体配置：

```10.20.71.150 nutcracker.yml
alpha:
listen: 10.20.71.150:22122
hash: fnv1a_64
distribution: ketama
auto_eject_hosts: true
redis: true
server_retry_timeout: 2000
server_failure_limit: 1
servers:

• 127.0.0.1:6379:1
• 127.0.0.1:6389:1
• 10.20.71.161:6379:1
• 10.20.71.161:6389:1

```10.20.71.161 nutcracker.yml alpha:  listen: 10.20.71.161:22122  hash: fnv1a_64  distribution: ketama  auto_eject_hosts: true  redis: true  server_retry_timeout: 2000  server_failure_limit: 1  servers:   - 127.0.0.1:6379:1   - 127.0.0.1:6389:1   - 10.20.71.150:6379:1   - 10.20.71.150:6389:1

 ! Configuration File for keepalivedglobal_defs {   notification_email {     acassen@firewall.loc     failover@firewall.loc     sysadmin@firewall.loc   }   notification_email_from Alexandre.Cassen@firewall.loc   smtp_server 192.168.200.1   smtp_connect_timeout 30   router_id LVS_DEVEL}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 {        10.20.71.65    }}virtual_server 10.20.71.65 22122 {    delay_loop 3    lb_algo wrr    lb_kind DR    protocol TCP    sorry_server 127.0.0.1 22122    real_server 10.20.71.150 22122 {        TCP_CHECK {            connect_timeout 3            nb_get_retry 3            delay_before_retry 3        }    }    real_server 10.20.71.161 22122 {        TCP_CHECK {            connect_timeout 3            nb_get_retry 3            delay_before_retry 3        }    }}

```各进程情况，以及ipvsadm -Ln

[root@dev2 src]# ps -ef|grep redis
root 734 1 0 02:32 ? 00:00:05 /opt/redis-3.0.2/src/redis-server *:6379

root 742 1 0 02:32 ? 00:00:05 /opt/redis-3.0.2/src/redis-server *:6389

root 2754 1899 0 05:02 pts/0 00:00:00 grep redis
[root@dev2 src]# ps -ef|grep nut
root 2090 1 0 04:04 ? 00:00:00 /opt/twemproxy-0.4.0/src/nutcracker -d -c /opt/nutcracker2.yml -o /opt/twemproxy.log
root 2756 1899 0 05:02 pts/0 00:00:00 grep nut
[root@dev2 src]# ps -ef|grep keepalived
root 2126 1 0 04:05 ? 00:00:00 /usr/sbin/keepalived -D
root 2127 2126 0 04:05 ? 00:00:00 /usr/sbin/keepalived -D
root 2128 2126 0 04:05 ? 00:00:00 /usr/sbin/keepalived -D
root 2758 1899 0 05:02 pts/0 00:00:00 grep keepalived
[root@dev2 src]# ipvsadm -Ln
IP Virtual Server version 1.2.1 (size=4096)
Prot LocalAddress:Port Scheduler Flags
-> RemoteAddress:Port Forward Weight ActiveConn InActConn
TCP 10.20.71.65:22122 wrr
-> 10.20.71.150:22122 Local 1 0 0

-> 10.20.71.161:22122 Route 1 0 0

[root@dev2 src]#

```问题现象：VIP（65）+22122不能访问[root@dev2 src]# ./redis-cli -h 10.20.71.65 -p 22122Could not connect to Redis at 10.20.71.65:22122: Connection timed outnot connected> ```真实IP+22122可以访问（应该能证明twemproxy没有问题吧）[root@dev2 src]# ./redis-cli -h 10.20.71.150 -p 2212210.20.71.150:22122> set oo 11OK10.20.71.150:22122> get oo11""10.20.71.150:22122> ```真实IP+redis端口也是可以的(redis应该也没装错)[root@dev2 src]# ./redis-cli -h 10.20.71.150 -p 638910.20.71.150:6389> set pp ppOK10.20.71.150:6389> get pppp""```最后VIP+redis端口也是可以的[root@dev2 src]# ./redis-cli -h 10.20.71.65 -p 638910.20.71.65:6389> keys *1) ""m""2) ""pp""3) ""redisinstallredord""4) ""1""

{""service"":""nutcracker""source"":""dev2""version"":""0.3.0""uptime"":2934timestamp"":1440665580total_connections"":955curr_connections"":2alpha"": {""client_eof"":0client_err"":951client_connections"":1server_ejects"":0forward_error"":0fragments"":0127.0.0.1:6379"": {""server_eof"":0server_err"":0server_timedout"":0server_connections"":1server_ejected_at"":0requests"":4request_bytes"":109responses"":4response_bytes"":26in_queue"":0in_queue_bytes"":0out_queue"":0out_queue_bytes"":0}127.0.0.1:6389"": {""server_eof"":at"":0requests"":0request_bytes"":0responses"":0response_bytes"":0in_queue"":0in_queue_bytes"":0out_queue"":0out_queue_bytes"":0}10.20.71.161:6379"": {""server_eof"":0server_err"":0server_timedout"":0server_connections"":0server_ejected_at"":0requests"":0request_bytes"":0responses"":0response_bytes"":0in_queue"":0in_queue_bytes"":0out_queue"":0out_queue_bytes:0}10.20.71.161:6389"": {""server_eof"":0server_err"":0server_timedout"":0server_connections"":0server_ejected_at"":0requests"":0request_bytes"":0responses"":0response_bytes"":0in_queue"":0in_queue_bytes"":0out_queue"":0out_queue_bytes"":0}}}Connection to host lost.C:WindowsSystem32>telnet 10.20.71.65 22222

telnet个端口IP组合以及应用程序请求和redis-cli表现一致。

求问，为什么最希望访问的组合 VIP+22122（proxy端口）不能访问？？？？？