yujin2010good
作者yujin2010good2019-06-10 13:45
系统工程师, 大型零售巨头

redis-3主3从1专用哨兵--程序分片配置

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本项目采用redis3主3从,程序端分片。

一、redis安装
1、安装
vi /etc/resolv.conf
yum -y install gcc openssl-devel pcre-devel zlib-devel openssl pcre wget ruby rubygems vim tree lsof gcc-c++ libstdc++-devel tcl
yum -y install gcc gcc-c++ libstdc++-devel tcl

mkdir /data
cd /data
wget ftp://182.168.1.249/pub/redis/redis-3.0.0.tar.gz
tar xzvf redis-3.0.0.tar.gz -C /usr/local/
mv /usr/local/redis-3.0.0 /usr/local/redis
cd /usr/local/redis/src
make && make test

2、主从配置

cd /usr/local/redis/
vi redis.conf
./src/redis-server redis.conf
./src/redis-cli -p 6379

主配置文件
daemonize yes
port 6379


cd /usr/local/redis/
vi redis.conf
./src/redis-server redis.conf
./src/redis-cli -p 16379

从配置文件
daemonize yes
port 16379
slaveof 192.168.2.81 6379

2、手动切换测试

./src/redis-cli -p 6379 shutdown

./src/redis-cli -p 6380 slaveof NO ONE
写入测试

启动主、回切
./src/redis-cli -p 6380 slaveof 192.168.2.81 6379

3、rdb文件备份
redis目录下的dump.rdb 需要备份

二、哨兵配置

1、所有主机都配置

MyMaster

sentinel monitor MyMaster 192.168.2.81 6379 1
sentinel down-after-milliseconds MyMaster 5000
sentinel failover-timeout MyMaster 900000
sentinel parallel-syncs MyMaster 2

2、启动并查看状态

./src/redis-server sentinel.conf --sentinel
查看master的状态
127.0.0.1:26379> sentinel master MyMaster
1) "name"
2) "MyMaster"
3) "ip"
4) "192.168.2.81"
5) "port"
6) "6379"
7) "runid"
8) "f62bd94d135fefd5babe9fd8f29461c5d87cfe83"
9) "flags"
10) "master"
11) "pending-commands"
12) "0"
13) "last-ping-sent"
14) "0"
15) "last-ok-ping-reply"
16) "816"
17) "last-ping-reply"
18) "816"
19) "down-after-milliseconds"
20) "5000"
21) "info-refresh"
22) "7216"
23) "role-reported"
24) "master"
25) "role-reported-time"
26) "289182"
27) "config-epoch"
28) "0"
29) "num-slaves"
30) "1"
31) "num-other-sentinels"
32) "2"
33) "quorum"
34) "1"
35) "failover-timeout"
36) "900000"
37) "parallel-syncs"
38) "2"
查看salves的状态
127.0.0.1:26379> sentinel slaves MyMaster
1) 1) "name"

2) "192.168.2.82:16379"
3) "ip"
4) "192.168.2.82"
5) "port"
6) "16379"
7) "runid"
8) "dc32cf6346183d07d1ec2966c0c021df229c995e"
9) "flags"

10) "slave"
11) "pending-commands"
12) "0"
13) "last-ping-sent"
14) "0"
15) "last-ok-ping-reply"
16) "134"
17) "last-ping-reply"
18) "134"
19) "down-after-milliseconds"
20) "5000"
21) "info-refresh"
22) "1448"
23) "role-reported"
24) "slave"
25) "role-reported-time"
26) "372638"
27) "master-link-down-time"
28) "0"
29) "master-link-status"
30) "ok"
31) "master-host"
32) "192.168.2.81"
33) "master-port"
34) "6379"
35) "slave-priority"
36) "100"
37) "slave-repl-offset"
38) "62931"
查看哨兵的状态
127.0.0.1:26379> sentinel sentinels MyMaster
1) 1) "name"

2) "192.168.2.82:26379"
3) "ip"
4) "192.168.2.82"
5) "port"
6) "26379"
7) "runid"
8) "e5eed5573a17bbefbc64011383b5347ba1b8a1ef"
9) "flags"

10) "sentinel"
11) "pending-commands"
12) "0"
13) "last-ping-sent"
14) "0"
15) "last-ok-ping-reply"
16) "881"
17) "last-ping-reply"
18) "881"
19) "down-after-milliseconds"
20) "5000"
21) "last-hello-message"
22) "117"
23) "voted-leader"
24) "?"
25) "voted-leader-epoch"
26) "0"
2) 1) "name"

2) "192.168.2.89:26379"
3) "ip"
4) "192.168.2.89"
5) "port"
6) "26379"
7) "runid"
8) "3a6aa4f6a496ac430c253b04eeb8068cfb49388f"
9) "flags"

10) "sentinel"
11) "pending-commands"
12) "0"
13) "last-ping-sent"
14) "0"
15) "last-ok-ping-reply"
16) "881"
17) "last-ping-reply"
18) "881"
19) "down-after-milliseconds"
20) "5000"
21) "last-hello-message"
22) "331"
23) "voted-leader"
24) "?"
25) "voted-leader-epoch"
26) "0"

获取当前master的地址
127.0.0.1:26379> sentinel get-master-addr-by-name MyMaster
1) "192.168.2.81"
2) "6379

当前log
[root@i-e2xkard2 redis]# ./src/redis-server sentinel.conf --sentinel

            _._                                                  
       _.-``__ ''-._                                             
  _.-``    `.  `_.  ''-._           Redis 3.0.0 (00000000/0) 64 bit

.- .-`. `\/ ., ''-._
( ' , .- | , ) Running in sentinel mode
|-._-...- __...-.`-._|'` _.-'| Port: 26379
| -._ ._ / _.-' | PID: 4002
-._ -._ `-./ _.-' _.-'
|-._-._ `-.__.-' _.-'_.-'|
| -._-._ _.-'_.-' | http://redis.io
-._ -._`-.__.-'_.-' _.-'
|-._-._ `-.__.-' _.-'_.-'|
| -._-._ _.-'_.-' |
-._ -._`-.__.-'_.-' _.-'

  `-._    `-.__.-'    _.-'                                       
      `-._        _.-'                                           
          `-.__.-'                                               

4002:X 16 Oct 11:08:00.106 # Sentinel runid is a6e45d444520407ffbbcdbab7207eac60ac8d3d7
4002:X 16 Oct 11:08:00.106 # +monitor master MyMaster 192.168.2.81 6379 quorum 1
4002:X 16 Oct 11:08:01.107 * +slave slave 192.168.2.82:16379 192.168.2.82 16379 @ MyMaster 192.168.2.81 6379
4002:X 16 Oct 11:10:00.513 * +sentinel sentinel 192.168.2.82:26379 192.168.2.82 26379 @ MyMaster 192.168.2.81 6379
4002:X 16 Oct 11:11:12.472 * +sentinel sentinel 192.168.2.89:26379 192.168.2.89 26379 @ MyMaster 192.168.2.81 6379

3、后台启动
nohup /usr/local/redis/src/redis-sentinel /usr/local/redis/sentinel.conf >> /var/log/redis_sentinel.log 2>&1 &
tail -f /var/log/redis_sentinel.log

nohup /usr/local/redis/src/redis-sentinel /usr/local/redis/sentinel.conf >> /var/log/redis_sentinel.log 2>&1 &
nohup /usr/local/redis/src/redis-sentinel /usr/local/redis/sentinel1.conf >> /var/log/redis_sentinel1.log 2>&1 &
nohup /usr/local/redis/src/redis-sentinel /usr/local/redis/sentinel2.conf >> /var/log/redis_sentinel2.log 2>&1 &

tail -f /var/log/redis_sentinel.log
tail -f /var/log/redis_sentinel1.log
tail -f /var/log/redis_sentinel2.log

4、切换测试
都ok

三、java连接哨兵

public static void main(String[] args) {

    Set<String> sentinels = new HashSet<String>();
    sentinels.add(new HostAndPort("192.168.2.81", 26379).toString());
    sentinels.add(new HostAndPort("192.168.2.82", 26379).toString());
    sentinels.add(new HostAndPort("192.168.2.89", 26379).toString());
    JedisSentinelPool sentinelPool = new JedisSentinelPool("MyMaster", sentinels);
    System.out.println("Current master: " + sentinelPool.getCurrentHostMaster().toString());
    Jedis master = sentinelPool.getResource();
    master.auth("pwdisadmin");
    master.set("username","cczz");
    Jedis master2 = sentinelPool.getResource();
    master2.auth("pwdisadmin");
    String value = master2.get("username");
    System.out.println("username: " + value);
    master2.close();
    sentinelPool.close();
    sentinelPool.destroy();
}

四、交付软件测试内容
三对主从,一台专用哨兵
第一对
192.168.2.82 (主) 端口:16379 哨兵端口:26379
192.168.2.81 (从) 端口:6379 哨兵端口:26379
192.168.2.89 (专用哨兵) 哨兵端口:26379
第二对
192.168.2.90 (主) 端口:6379 哨兵端口:26380
192.168.2.91 (从) 端口:16379 哨兵端口:26380
192.168.2.89 (专用哨兵) 哨兵端口:26380
第三对
192.168.2.92 (主) 端口:6379 哨兵端口:26381
192.168.2.93 (从) 端口:16379 哨兵端口:26381
192.168.2.89 (专用哨兵) 哨兵端口:26381

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