找了02，03，04三台機器，04做主，02做從，03做客戶端。
都使用jumbo install redis安裝了Redis（server+client）。
在 02 從的 ~/.jumbo/etc/redis.conf 里
slaveof <masterip> 6379
在04 主的 ~/.jumbo/etc/redis.conf 里
appendonly yes
appendfsync everysec
主從都要改：
daemonize yes
logfile "/home/work/.jumbo/var/log/redis/redis.log"
然后先啟動主，再啟動從，都使用
redis-server (因為deamonize為true，所以不用&)
報如下錯誤：
7652:C 05 Oct 16:59:37.203 # Warning: no config file specified, using the default config. In order to specify a config file use redis-server /path/to/redis.conf
7652:M 05 Oct 16:59:37.207 # Creating Server TCP listening socket *:6379: unable to bind socket
然后發現居然是因為沒有指定配置文件：
redis-server ~/.jumbo/etc/redis.conf
這樣就可以了。
然后跑到03上，用客戶端訪問：
redis-cli -h 10.117.146.16 -p 6379
發現：
Could not connect to Redis at 10.117.146.16:6379: Connection refused
Could not connect to Redis at 10.117.146.16:6379: Connection refused
not connected>
然后也發現從機一直報error log：
36855:S 05 Oct 17:10:57.379 * Connecting to MASTER 10.117.146.16:6379
36855:S 05 Oct 17:10:57.379 * MASTER <-> SLAVE sync started
36855:S 05 Oct 17:10:57.379 # Error condition on socket for SYNC: Connection refused
先把從Redis關了，用客戶端：
$ redis-cli
127.0.0.1:6379> shutdown
not connected>
not connected> quit
然后再看Redis配置文件 vi ~/.jumbo/etc/redis.conf
有如下內容：
################################## NETWORK ##################################### # By default, if no "bind" configuration directive is specified, Redis listens # for connections from all the network interfaces available on the server. # It is possible to listen to just one or multiple selected interfaces using # the "bind" configuration directive, followed by one or more IP addresses. # # Examples: # # bind 192.168.1.100 10.0.0.1 # bind 127.0.0.1 ::1 # # ~~~ WARNING ~~~ If the computer running Redis is directly exposed to the # internet, binding to all the interfaces is dangerous and will expose the # instance to everybody on the internet. So by default we uncomment the # following bind directive, that will force Redis to listen only into # the IPv4 lookback interface address (this means Redis will be able to # accept connections only from clients running into the same computer it # is running). # # IF YOU ARE SURE YOU WANT YOUR INSTANCE TO LISTEN TO ALL THE INTERFACES # JUST COMMENT THE FOLLOWING LINE. # ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ bind 127.0.0.1
所以，注釋掉最后一行。重新啟動。
然后又開始報這樣的錯：
12487:M 05 Oct 17:16:46.170 # Creating Server TCP listening socket *:6379: unable to bind socket
在redis.conf里面加上下面這行：
# bind 127.0.0.1
bind 0.0.0.0
重新啟動：redis-server ~/.jumbo/etc/redis.conf
然后 ps xu | grep redis 可以看到：
work 23986 0.0 0.0 79428 2104 ? Ssl 17:18 0:00 redis-server 0.0.0.0:6379
在03機器上可以訪問：
redis-cli -h 10.117.x.x -p 6379
10.117.146.16:6379>
然后可以看到aof文件位置在：
$ ls -la ~/.jumbo/var/lib/redis/appendonly.aof
-rw-r--r-- 1 work work 0 Oct 5 17:06 /home/work/.jumbo/var/lib/redis/appendonly.aof
然后從Redis的日志有：
25089:S 05 Oct 17:22:59.018 * MASTER <-> SLAVE sync started 25089:S 05 Oct 17:22:59.018 * Non blocking connect for SYNC fired the event. 25089:S 05 Oct 17:22:59.019 * Master replied to PING, replication can continue... 25089:S 05 Oct 17:22:59.019 * Partial resynchronization not possible (no cached master) 25089:S 05 Oct 17:22:59.019 * Full resync from master: 64377169e1e5fc029ad8e584e24947a53d4f8fa0:1 25089:S 05 Oct 17:22:59.103 * MASTER <-> SLAVE sync: receiving 76 bytes from master 25089:S 05 Oct 17:22:59.104 * MASTER <-> SLAVE sync: Flushing old data 25089:S 05 Oct 17:22:59.104 * MASTER <-> SLAVE sync: Loading DB in memory 25089:S 05 Oct 17:22:59.104 * MASTER <-> SLAVE sync: Finished with success
主Redis的日志有：
23986:M 05 Oct 17:22:59.020 * Slave 10.117.x.x:6379 asks for synchronization 23986:M 05 Oct 17:22:59.020 * Full resync requested by slave 10.117.146.21:6379 23986:M 05 Oct 17:22:59.020 * Starting BGSAVE for SYNC with target: disk 23986:M 05 Oct 17:22:59.020 * Background saving started by pid 40323 40323:C 05 Oct 17:22:59.076 * DB saved on disk 40323:C 05 Oct 17:22:59.076 * RDB: 0 MB of memory used by copy-on-write 23986:M 05 Oct 17:22:59.104 * Background saving terminated with success 23986:M 05 Oct 17:22:59.104 * Synchronization with slave 10.117.x.x:6379 succeeded
以下是先用客戶端訪問主，再訪問從的結果：
$ redis-cli -h 10.117.146.16 -p 6379 10.117.146.16:6379> zadd page_rank 10 google.com (integer) 1 10.117.146.16:6379> zadd page_rank 9 baidu.com 8 bing.com (integer) 2 10.117.146.16:6379> zrange page_rank 0 -1 withscores 1) "bing.com" 2) "8" 3) "baidu.com" 4) "9" 5) "google.com" 6) "10" 10.117.146.16:6379> zrange page_rank 0 -1 1) "bing.com" 2) "baidu.com" 3) "google.com" 10.117.146.16:6379> quit
$ redis-cli -h 10.117.146.21 -p 6379 10.117.146.21:6379> zrange page_rank 0 -1 withscores 1) "bing.com" 2) "8" 3) "baidu.com" 4) "9" 5) "google.com" 6) "10" 10.117.146.21:6379> zrange page_rank 0 -1 1) "bing.com" 2) "baidu.com" 3) "google.com" 10.117.146.21:6379> quit
而此時查看主和從的日志，都沒有明顯的日志，因為日志開在了notice級別：
主：
40323:C 05 Oct 17:22:59.076 * RDB: 0 MB of memory used by copy-on-write 23986:M 05 Oct 17:22:59.104 * Background saving terminated with success 23986:M 05 Oct 17:22:59.104 * Synchronization with slave 10.117.146.21:6379 succeeded
從： 25089:S 05 Oct 17:22:59.019 * Partial resynchronization not possible (no cached master) 25089:S 05 Oct 17:22:59.019 * Full resync from master: 64377169e1e5fc029ad8e584e24947a53d4f8fa0:1 25089:S 05 Oct 17:22:59.103 * MASTER <-> SLAVE sync: receiving 76 bytes from master 25089:S 05 Oct 17:22:59.104 * MASTER <-> SLAVE sync: Flushing old data 25089:S 05 Oct 17:22:59.104 * MASTER <-> SLAVE sync: Loading DB in memory 25089:S 05 Oct 17:22:59.104 * MASTER <-> SLAVE sync: Finished with success
而aof文件，相比於剛才，已經有了增加：
$ ls -la ~/.jumbo/var/lib/redis/appendonly.aof -rw-r--r-- 1 work work 149 Oct 5 17:28 /home/work/.jumbo/var/lib/redis/appendonly.aof 剛剛是：
$ ls -la ~/.jumbo/var/lib/redis/appendonly.aof
-rw-r--r-- 1 work work 0 Oct 5 17:06 /home/work/.jumbo/var/lib/redis/appendonly.aof
然后通過客戶端分別關掉兩個server:
$ redis-cli -h 10.117.146.21 -p 6379 10.117.146.21:6379> SHUTDOWN save not connected> quit $ redis-cli -h 10.117.146.16 -p 6379 10.117.146.16:6379> SHUTDOWN save not connected> not connected> quit
然后再次分別啟動，來監測aof文件是否會自動加載。
用客戶端連接，發現數據都還在，如下所示：
$ redis-cli -h 10.117.x.x -p 6379
10.117.x.x:6379> zrange page_rank 0 -1 withscores
1) "bing.com"
2) "8"
3) "baidu.com"
4) "9"
5) "google.com"
6) "10"
10.117.x.x:6379>
所以，aof文件是自動加載的。Redis的持久化是生效的。
再說一下Redis的密碼驗證：
現在安裝的目錄里配置文件位置：/home/work/.jumbo/etc/redis.conf
在master上： # requirepass foobared requirepass [用戶名] 在slave上： # masterauth <master-password> masterauth [用戶名]
然后重啟。重啟方法見前文。
之后訪問的時候，會出現沒有權限的情況，需要在命令前指定權限，或者在redis-cli參數里用 -a 加權限：
$ redis-cli -h 10.117.146.16 -p 6379 10.117.146.16:6379> keys * (error) NOAUTH Authentication required. 10.117.146.16:6379> auth [用戶名] OK 10.117.146.16:6379> keys * 1) "age" 2) "testName" 3) "newset" 4) "k2" 5) "myhash" 6) "page_rank" 7) "myset" 8) "k1" 9) "myzset" 10) "myset2" 11) "k5" 12) "mylist" 13) "k3" 10.117.146.16:6379> quit $ redis-cli -h 10.117.146.16 -p 6379 -a [用戶名] 10.117.146.16:6379> keys * 1) "age" 2) "testName" 3) "newset" 4) "k2" 5) "myhash" 6) "page_rank" 7) "myset" 8) "k1" 9) "myzset" 10) "myset2" 11) "k5" 12) "mylist" 13) "k3" 10.117.146.16:6379> quit $ redis-cli -h 10.117.146.16 -p 6379 10.117.146.16:6379> keys * (error) NOAUTH Authentication required. 10.117.146.16:6379> auth abc (error) ERR invalid password