安装Redis
cd /bea
tar -zxvf redis-5.0.8.tar.gz
cd redis-5.0.8
cd src && make all (编译)
cd /bea/redis-5.0.8
mkdir install
cd /bea/redis-5.0.8/src
make install PREFIX= /bea/redis-5.0.8/install （安装） 会安装到install的bin目录下
cd /bea/redis-5.0.8/
cp redis.conf /bea/redis-5.0.8/install/bin
cd /bea/redis-5.0.8/install/bin
./redis-server ./redis.conf (启动redis)
ps -ef |grep redis
cd /bea/redis-5.0.8/install/bin/
nohup ./resdis-server ./redis.conf >out.log 2>&1 & (后台) 哨兵（sentinel）+keepalived
master：10.97.142.89（xmsmkyhzzjlk06）
slave：10.97.142.84（xmsmkyhzzjlk01）
vip：10.97.142.55参考链接：
部分说明：
Redis protected-mode属性解读
redis3.2版本后新增protected-mode配置，默认是yes，即开启。设置外部网络连接redis服务，设置方式如下：
1、关闭protected-mode模式，此时外部网络可以直接访问
2、开启protected-mode保护模式，需配置bind ip或者设置访问密码
原文链接：
修改sentinel配置文件
vim /usr/local/redis/6379/26379.conf修改内容：
# 添加守护进程模式
daemonize yes# 添加指明日志文件名
logfile "/usr/local/redis/6379/sentinel26379.log"# 修改工作目录
dir "/usr/local/redis/6379"# 修改启动端口
port 26379# 添加关闭保护模式
protected-mode no# 修改sentinel monitor
sentinel monitor macrog-master 192.168.24.131 6379 2# 将配置文件中mymaster全部替换macrog-master
# 在末行模式下 输入 :%s/mymaster/macrog-master/g1、master 10.97.142.89：redis.conf配置
[root@xmsmkyhzzjlk06 bin]# grep -E -v "^$|^#" redis.conf
bind 0.0.0.0（只需改这个）
protected-mode no（只需改这个）
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile "/var/run/redis_6379.pid"
loglevel notice
logfile ""
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename "dump.rdb"
dir "/bea/redis/install/bin"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
masterauth "ylzinfo123qazxsw"（只需加这个）
requirepass "ylzinfo123qazxsw"（只需加这个）#min-slaves-to-write 1 表示只有当1个或以上的slave连接到master，master才是可写的
#min-slaves-max-lag 10 表示允许slave最长失去连接的时间，如果10秒还没收到slave的响应，则master认为该slave以断开启动命令：./redis-server ./redis.conf >out6379.log &
2、master10.97.142.89：sentinel.conf配置
[root@xmsmkyhzzjlk06 bin]# grep -E -v "^$|^#" sentinel.conf
protected-mode no（只需改这个）
port 26379
daemonize no
pidfile "/var/run/redis-sentinel.pid"
logfile ""
dir "/tmp"
sentinel deny-scripts-reconfig yes
sentinel monitor mymaster 10.97.142.89 6379 1
sentinel config-epoch mymaster 0
sentinel leader-epoch mymaster 702
sentinel monitor xmsmkyhzzjlk06 10.97.142.89 6379 1 （只需改这个） # 最后一个数字1，表示主机挂掉后salve投票看让谁接替成为主机，得票数多少后成为主机，其ip为master的ip以及hostname
sentinel auth-pass xmsmkyhzzjlk06 ylzinfo123qazxsw （只需改这个） #在redis.conf上配置了密码，则这也需要设置同样的密码 master主密码，不设置的话不能动态切换
# 将配置文件中mymaster全部替换xmsmkyhzzjlk06 （只需改这个）
# 在末行模式下 输入 :%s/mymaster/xmsmkyhzzjlk06/g （只需改这个）
sentinel config-epoch xmsmkyhzzjlk06 598
sentinel leader-epoch xmsmkyhzzjlk06 598
sentinel known-replica xmsmkyhzzjlk06 10.97.142.84 6379
sentinel known-sentinel xmsmkyhzzjlk06 10.97.142.84 26379 c81d8092fef84ca37a9c3c58a623559212c0fa13
sentinel current-epoch 703启动命令：./redis-sentinel ./sentinel.conf >outsen6379.log &
3、slave10.97.142.84：redis.conf配置
[root@xmsmkyhzzjlk01 bin]# grep -E -v "^$|^#" redis.conf
bind 0.0.0.0（只需改这个）
protected-mode no（只需改这个）
port 6379
tcp-backlog 511
timeout 0
tcp-keepalive 300
daemonize no
supervised no
pidfile "/var/run/redis_6379.pid"
loglevel notice
logfile ""
databases 16
always-show-logo yes
save 900 1
save 300 10
save 60 10000
stop-writes-on-bgsave-error yes
rdbcompression yes
rdbchecksum yes
dbfilename "dump.rdb"
dir "/bea/redis/install/bin"
replica-serve-stale-data yes
replica-read-only yes
repl-diskless-sync no
repl-diskless-sync-delay 5
repl-disable-tcp-nodelay no
replica-priority 100
lazyfree-lazy-eviction no
lazyfree-lazy-expire no
lazyfree-lazy-server-del no
replica-lazy-flush no
appendonly no
appendfilename "appendonly.aof"
appendfsync everysec
no-appendfsync-on-rewrite no
auto-aof-rewrite-percentage 100
auto-aof-rewrite-min-size 64mb
aof-load-truncated yes
aof-use-rdb-preamble yes
lua-time-limit 5000
slowlog-log-slower-than 10000
slowlog-max-len 128
latency-monitor-threshold 0
notify-keyspace-events ""
hash-max-ziplist-entries 512
hash-max-ziplist-value 64
list-max-ziplist-size -2
list-compress-depth 0
set-max-intset-entries 512
zset-max-ziplist-entries 128
zset-max-ziplist-value 64
hll-sparse-max-bytes 3000
stream-node-max-bytes 4096
stream-node-max-entries 100
activerehashing yes
client-output-buffer-limit normal 0 0 0
client-output-buffer-limit replica 256mb 64mb 60
client-output-buffer-limit pubsub 32mb 8mb 60
hz 10
dynamic-hz yes
aof-rewrite-incremental-fsync yes
rdb-save-incremental-fsync yes
masterauth "ylzinfo123qazxsw" （只需改这个）
requirepass "ylzinfo123qazxsw"（只需改这个）
slaveof 10.97.142.89 6379（只需改这个）启动命令：./redis-server ./redis.conf >out6379.log &
4、slave10.97.142.84：sentinel.conf配置
[root@xmsmkyhzzjlk01 bin]# grep -E -v "^$|^#" sentinel.conf
protected-mode no （只需改这个）
port 26379
daemonize no
pidfile "/var/run/redis-sentinel.pid"
logfile ""
dir "/tmp"
sentinel deny-scripts-reconfig yes
sentinel config-epoch xmsmkyhzzjlk01 0
sentinel leader-epoch xmsmkyhzzjlk01 706
sentinel monitor xmsmkyhzzjlk06 10.97.142.89 6379 1 （只需改这个） ## 最后一个数字1，表示主机挂掉后salve投票看让谁接替成为主机，得票数多少后成为主机，其ip为master的ip以及hostname
sentinel auth-pass xmsmkyhzzjlk06 ylzinfo123qazxsw （只需改这个）#在redis.conf上配置了密码，则这也需要设置同样的密码。master主密码，不设置的话不能动态切换# 将配置文件中mymaster全部替换xmsmkyhzzjlk06 （只需改这个）
# 在末行模式下 输入 :%s/mymaster/xmsmkyhzzjlk06/g （只需改这个）
sentinel config-epoch xmsmkyhzzjlk06 598
sentinel leader-epoch xmsmkyhzzjlk06 598
sentinel known-replica xmsmkyhzzjlk06 10.97.142.84 6379
sentinel known-sentinel xmsmkyhzzjlk06 10.97.142.89 26379 024e837f2e4e92e0ad2488d7a7966edd67359056
sentinel monitor mymaster 10.97.142.89 6379 1
sentinel config-epoch mymaster 0
sentinel leader-epoch mymaster 704
sentinel current-epoch 706启动命令：./redis-sentinel ./sentinel.conf >outsen6379.log &
5、查看登陆redis命令
[root@xmsmkyhzzjlk01 bin]# /redis-5.0.8/install/bin/redis-cli -c -h 10.97.142.84 -p 6379 -a ylzinfo123qazxsw 2>/dev/null
10.97.142.84:6379> info replication
# Replication
role:slave
master_host:10.97.142.89
master_port:6379
master_link_status:up
master_last_io_seconds_ago:0
master_sync_in_progress:0
slave_repl_offse
t:1972909
slave_priority:100
slave_read_only:1
connected_slaves:0
master_replid:e2237d6d28a7aab90a9901ec72cac069144ead02
master_replid2:0000000000000000000000000000000000000000
master_repl_offset:1972909
second_repl_offset:-1
repl_backlog_active:1
repl_backlog_size:1048576
repl_backlog_first_byte_offset:924334
repl_backlog_histlen:10485766、keepalived的配置与redis_check.sh的编写
参考链接：
1) master10.97.142.89：keepalived.conf配置
[root@xmsmkyhzzjlk06 keepalived]# cat keepalived.conf
! 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 127.0.0.1
smtp_connect_timeout 30
router_id master-node
# vrrp_skip_check_adv_addr
# vrrp_strict
# vrrp_garp_interval 0
# vrrp_gna_interval 0
}vrrp_script chk_http_port {
script "/etc/keepalived/redis_check.sh" #只有在检测失败（即exit为非0）时执行以下条件，权重减少，意思是如果在这个脚本执行的结果为exit为非0，会在vrrp实例定义的优先级减去下面的weight值，就表示期望这个节点为备用状态。
interval 20 #检测间隔时间
weight -5 #权重减少
fall 1
rise 1
}vrrp_instance VI_1 {
state MASTER
interface eth3
mcast_src_ip 10.97.142.89
virtual_router_id 51
priority 101
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.97.142.55
}
track_script {
chk_http_port
}
}2) master10.97.142.89：redis_check.sh配置
[root@xmsmkyhzzjlk06 keepalived]# cat redis_check.sh
#!/bin/bash
ps -ef |grep -E -i -w "6379" | grep -v "grep"
if [ "$?" == "0" ]
then
sa=`echo "info replication" | /redis-5.0.8/install/bin/redis-cli -c -h 10.97.142.89 -p 6379 -a ylzinfo123qazxsw 2>/dev/null | grep -E -i "role" | cut -f 1 | cut -d ":" -f 2`
sb=${#sa}
sh=$(($sb-1))
if [ "$sh" -eq 5 ]
then
exit 1
# touch /etc/keepalived/down
else
# rm -rf /etc/keepalived/down
exit 0
fi
else
sleep 10s
nohup /redis-5.0.8/install/bin/redis-server /redis-5.0.8/install/bin/redis.conf >/redis-5.0.8/install/bin/out6379.log & #重新启动redis
# rm -rf /etc/keepalived/down
exit 1
fi
#exit3) slave10.97.142.84：keepalived.conf配置
[root@xmsmkyhzzjlk01 keepalived]# cat keepalived.conf
! Configuration File for keepalived
global_defs {
notification_email {
acassen@firewall.loc
failover@firewall.loc
sysadmin@firewall.loc
}
notification_email_from Alexandre.Cassen@firewall.loc
smtp_server 127.0.0.1
smtp_connect_timeout 30
router_id backup-node
# vrrp_skip_check_adv_addr
# vrrp_strict
# vrrp_garp_interval 0
# vrrp_gna_interval 0
}vrrp_script chk_http_port {
script "/etc/keepalived/redis_check.sh" #只有在检测失败（即exit为非0）时执行以下条件，权重减少，意思是如果在这个脚本执行的结果为exit为非0，会在vrrp实例定义的优先级减去下面的weight值，就表示期望这个节点为备用状态。
interval 20 #检测间隔时间
weight -5 #权重减少
fall 1
rise 1
}vrrp_instance VI_1 {
state BACKUP
interface eth3
mcast_src_ip 10.97.142.84
virtual_router_id 51
priority 99
advert_int 1
authentication {
auth_type PASS
auth_pass 1111
}
virtual_ipaddress {
10.97.142.55
}
track_script {
chk_http_port
}
}4) slave10.97.142.84：redis_check.sh配置
[root@xmsmkyhzzjlk01 keepalived]# cat#!/bin/bash
ps -ef |grep -E -i -w "6379" | grep -v "grep"
if [ "$?" == "0" ]
then
sa=`echo "info replication" | /redis-5.0.8/install/bin/redis-cli -c -h 10.97.142.84 -p 6379 -a ylzinfo123qazxsw 2>/dev/null | grep -E -i "role" | cut -f 1 | cut -d ":" -f 2`
sb=${#sa}
sh=$(($sb-1))
if [ "$sh" -eq 5 ]
then
exit 1
# touch /etc/keepalived/down
else
# rm -rf /etc/keepalived/down
exit 0
fi
else
sleep 10s
nohup /redis-5.0.8/install/bin/redis-server /redis-5.0.8/install/bin/redis.conf >/redis-5.0.8/install/bin/out6379.log & #重新启动redis
# rm -rf /etc/keepalived/down
exit 1
fi
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