《實戰錄》導語

云端衛士《實戰錄》欄目定期會向粉絲朋友們分享一些在開發運維中的經驗和技巧,希望對于關注我們的朋友有所裨益.本期分享人為云端衛士平安平臺工程師田全磊,將帶來Redis的主從服務器搭建.

Redis是一個簡單快捷的key-value存儲系統.它提供了豐富的數據存儲結構,包含 lists, sets, ordered sets 以及 hashes ,當然還有和Memcached一樣的 strings結構.同時Redis提供還對這些數據結構的豐富操作.

Redis尖兵模式介紹

Redis 的 Sentinel 功效用于管理多個 Redis 服務器,它主要提供了監控,提醒和自動故障遷移的功效.

1.監控(Monitoring)： Sentinel 會賡續地檢查你的主服務器和從服務器是否運作正常.

2.提醒(Notification)： 當被監控的某個 Redis 服務器呈現問題時, Sentinel 可以通過 API 向管理員或者其他應用程序發送通知.

3.自動故障遷移(Automatic failover)： 當一個主服務器不克不及正常工作時, Sentinel 會開始一次自動故障遷移操作, 它會將失效主服務器的其中一個從服務器升級為新的主服務器, 并讓失效主服務器的其他從服務器改為復制新的主服務器； 當客戶端試圖連接失效的主服務器時, 集群也會向客戶端返回新主服務器的地址, 使得集群可以使用新主服務器代替失效服務器.

安裝

下載redis-2.8.19.tar.gz

解壓tar zxf redis-2.8.19.tar.gz

安裝cd redis-2.8.19

make && make install

每臺機械上都同樣安裝redis

Redis主從情況搭建

一主：192.168.24.147

兩從：192.168.24.148,192.168.24.149

(1)主192.168.24.147設置裝備擺設

目次：conf/redis_6379.conf

啟動敕令 src/redis-server conf/redis_6379.conf

daemonize yes

pidfile /export/Data/redis_pid/redis_6379.pid

port 6379

# tcp-backlog 511

timeout 300

tcp-keepalive 0

loglevel notice

logfile /export/Logs/redis/redis_6379.log

databases 16

stop-writes-on-bgsave-error yes

rdbcompression yes

dbfilename 6379.rdb

dir /export/Data/redis_data/6379

slave-serve-stale-data yes

slave-read-only yes

repl-disable-tcp-nodelay no

repl-backlog-size 128mb

maxmemory 2g

appendonly no

appendfilename 6379.aof

appendfsync everysec

no-appendfsync-on-rewrite no

auto-aof-rewrite-percentage 100

auto-aof-rewrite-min-size 64mb

lua-time-limit 5000

slowlog-log-slower-than 10000

slowlog-max-len 1024

# notify-keyspace-events ""

hash-max-ziplist-entries 512

hash-max-ziplist-value 64

list-max-ziplist-entries 512

list-max-ziplist-value 64

set-max-intset-entries 512

zset-max-ziplist-entries 128

zset-max-ziplist-value 64

# hll-sparse-max-bytes 3000

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 512mb 256mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

rename-co妹妹and keys jkeys

(2)從192.168.24.148設置裝備擺設

目次：conf/redis_6379.conf

啟動敕令 src/redis-server conf/redis_6379.conf

daemonize yes

slaveof 192.168.24.147 6379

pidfile /export/Data/redis_pid/redis_6379.pid

port 6379

# tcp-backlog 511

timeout 300

tcp-keepalive 0

loglevel notice

logfile /export/Logs/redis/redis_6379.log

databases 16

stop-writes-on-bgsave-error yes

rdbcompression yes

dbfilename 6379.rdb

dir /export/Data/redis_data/6379

slave-serve-stale-data yes

slave-read-only yes

repl-disable-tcp-nodelay no

repl-backlog-size 128mb

maxmemory 2g

appendonly no

appendfilename 6379.aof

appendfsync everysec

no-appendfsync-on-rewrite no

auto-aof-rewrite-percentage 100

auto-aof-rewrite-min-size 64mb

lua-time-limit 5000

slowlog-log-slower-than 10000

slowlog-max-len 1024

# notify-keyspace-events ""

hash-max-ziplist-entries 512

hash-max-ziplist-value 64

list-max-ziplist-entries 512

list-max-ziplist-value 64

set-max-intset-entries 512

zset-max-ziplist-entries 128

zset-max-ziplist-value 64

# hll-sparse-max-bytes 3000

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 512mb 256mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

rename-co妹妹and keys jkeys

(3)從192.168.24.149設置裝備擺設

目次：conf/redis_6379.conf

啟動敕令 src/redis-server conf/redis_6379.conf

daemonize yes

slaveof 192.168.24.147 6379

pidfile /export/Data/redis_pid/redis_6379.pid

port 6379

# tcp-backlog 511

timeout 300

tcp-keepalive 0

loglevel notice

logfile /export/Logs/redis/redis_6379.log

databases 16

stop-writes-on-bgsave-error yes

rdbcompression yes

dbfilename 6379.rdb

dir /export/Data/redis_data/6379

slave-serve-stale-data yes

slave-read-only yes

repl-disable-tcp-nodelay no

repl-backlog-size 128mb

maxmemory 2g

appendonly no

appendfilename 6379.aof

appendfsync everysec

no-appendfsync-on-rewrite no

auto-aof-rewrite-percentage 100

auto-aof-rewrite-min-size 64mb

lua-time-limit 5000

slowlog-log-slower-than 10000

slowlog-max-len 1024

# notify-keyspace-events ""

hash-max-ziplist-entries 512

hash-max-ziplist-value 64

list-max-ziplist-entries 512

list-max-ziplist-value 64

set-max-intset-entries 512

zset-max-ziplist-entries 128

zset-max-ziplist-value 64

# hll-sparse-max-bytes 3000

activerehashing yes

client-output-buffer-limit normal 0 0 0

client-output-buffer-limit slave 512mb 256mb 60

client-output-buffer-limit pubsub 32mb 8mb 60

hz 10

rename-co妹妹and keys jkeys