Redis cluster building

#

# redis official website: https://redis.io

# redis document: https://redis.io/documentation

# redis Cluster: https://redis.io/topics/cluster-tutorial

# redis common configuration explanation: https://yq.aliyun.com/articles/38806; https://github.com/linli8/cnblogs/blob/master/redis%E5%89%AF%E6%9C%AC.conf

# Software download

[root@node3 ~] # wget http://download.redis.io/releases/redis-3.2.9.tar.gz

# compiling

[root@node3 ~] # mkdir / usr/local/redis [root@node3 ~] # mkdir / usr/local/redis/ {data,conf,bin} [root@node3 ~] # tar-xf redis-3.2.9.tar.gz [root@node3 ~] # cd redis-3.2.9/ [root@node3 redis-3.2.9] # make

# copy the compiled file

[root@node3 redis-3.2.9] # cd src/ [root@node3 src] #\ cp-p mkreleasehdr.sh redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-sentinel redis-server redis-trib.rb / usr/local/redis/bin/ [root@node3 src] # cd. [root@node3 redis-3.2.9] # cp-p redis.conf / usr/local/redis/conf/

# create a data directory

[root@node3 redis-3.2.9] # cd / usr/local/redis/data/ [root@node3 data] # mkdir {7000..7005} [root@node3 data] # ls7000 7001 7002 7003 7004 7005 [root@node3 data] #

# modify the corresponding port (roughly as follows)

[root@node3 conf] # grep'^ [Amurz] 'redis.conf bind 0.0.0.0dir / usr/local/redis/data/7000pidfile / var/run/redis_7000.pidappendfilename "appendonly-7000.aof" port 7000cluster-config-file nodes-7000.conf cluster-enabled yescluster-node-timeout 15000protected-mode notcp-backlog 511timeout 0tcp-keepalive 300daemonize yessupervised nologlevel warninglogfile "databases 16save 900 1save 300 10save 60 10000stop-writes-on-bgsave-error yesrdbcompression yesrdbchecksum nodbfilename dump.rdbslave-serve-stale-data yesslave-read -only yesrepl-diskless-sync yesrepl-diskless-sync-delay 5repl-disable-tcp-nodelay noslave-priority 100appendonly yesappendfsync everysecno-appendfsync-on-rewrite noauto-aof-rewrite-percentage 100auto-aof-rewrite-min-size 64mbaof-load-truncated yeslua-time-limit 5000slowlog-log-slower-than 100000slowlog-max-len 128hash-max-ziplist-entries 512hash-max-ziplist-value 64list-max-ziplist-size-2list-compress-depth 0latency-monitor-threshold 0set-max-intset-entries 512zset-max-ziplist-entries 128zset-max -ziplist-value 64hll-sparse-max-bytes 3000activerehashing yesclient-output-buffer-limit normal 00 0client-output-buffer-limit slave 256mb 64mb 60client-output-buffer-limit pubsub 64mb 16mb 60hz 10aof-rewrite-incremental-fsync yesmaxmemory-policy allkeys-lrumaxmemory-samples 5maxclients 10000

# copy configuration file

[root@node3 conf] # for i in {7000.7005}; do cp redis.conf $i.confiting done [root@node3 conf] # ls7000.conf 7001.conf 7002.conf 7003.conf 7004.conf 7005.conf redis.conf [root@node3 conf] # rm-f redis.conf# batch modification [root@node3 conf] # for i in {7000.7005}; do sed-I "s/7000/$i/g"$I" .conf; done

# modify script (very rough script, not recommended, please write by yourself)

[root@node3 ~] # cp-p redis-3.2.9/utils/redis_init_script / etc/init.d/redis [root@node3 ~] # vim / etc/init.d/redis [root@node3 ~] # cat / etc/init.d/redis #! / bin/sh## Simple Redis init.d script conceived to work on Linux systems# as it does use of the / proc filesystem.#REDISPORT=$2EXEC=/usr/local/redis/bin/redis-serverCLIEXEC=/usr/local/redis/bin/redis -cliCONFDIR= "/ usr/local/redis/conf/" # PIDFILE=/var/run/redis_$ {REDISPORT} .pid # CONF= "$CONFDIR$ {REDISPORT} .conf" function main () {REDISPORT=$2PIDFILE=/var/run/redis_$ {REDISPORT} .pidCONF = "$CONFDIR$ {REDISPORT} .conf" case "$1" in start) if [- f $PIDFILE] then echo "$PIDFILE exists Process is already running or crashed "else echo" Starting Redis server... "$EXEC $CONF fi Stop) if [!-f $PIDFILE] then echo "$PIDFILE does not exist Process is not running "else PID=$ (cat $PIDFILE) echo" Stopping... "$CLIEXEC-p $REDISPORT shutdown while [- x / proc/$ {PID}] do echo" Waiting for Redis to shutdown... " Sleep 1 done echo "Redis stopped" fi;; *) echo "Please use start or stop as first parameter,port or all as second parameter."; esac} if ["$2" = = "all"] then for i in `ls $CONFDIR | grep [0-9] | cut-c 1-4`; domain $1$ i doneelse main $1 $2fi

# start the service

[root@node3 ~] # service redis start all [root@node3 ~] # netstat-lntup | grep redistcp 00 0.0.0.0root@node3 17000 0.0.0.0lntup * LISTEN 6735/redis-server 0 tcp 00 0.0.0.0root@node3 17001 0.0.0.0root@node3 * LISTEN 6737/redis-server 0 tcp 00 0.0.0.0 LISTEN 6747/redis-server 17002 0.0.0.0 LISTEN 6743/redis-server 0 tcp 00 0.0.0.0 LISTEN 6747/redis-server 0 tcp 00 0.0.0.0 LISTEN 6747/redis-server 17004 0.0.0.0 : * LISTEN 6749/redis-server 0 tcp 00 0.0.0.0LISTEN 6755/redis-server 17005 0.0.0.0LISTEN 6755/redis-server 0 tcp 00 0.0.0.070000.0.0.0LISTEN 6755/redis-server 0 tcp 00 0.0.0.0LISTEN 6743/redis-server 7001 0.0.0.0tcp * LISTEN 6737/redis-server 0 tcp 00 0.0.0.0VR 7002 0.0.0.0tcp 00 0.0.0.0LISTEN 6743/redis-server 7003 0.0.0.0LISTEN 6743/redis-server * LISTEN 6747/redis-server 0 tcp 00 0.0.0.0 LISTEN 6749/redis-server 7004 0.0.0.0 LISTEN 6749/redis-server 0 tcp 00 0.0.0.0 LISTEN 6749/redis-server 7005 0.0.0.0 LISTEN 6755/redis-server 0 [root@node3 ~] #

# create a cluster

[root@node3 conf] # yum install ruby ruby-devel rubygems rpm-build [root@node3 conf] # gem install redis # if there is no response You can change the source # change the source reference: http://gems.ruby-china.org/# gem update-- system # here please × × × now # gem sources-- add https://gems.ruby-china.org/-- remove https://rubygems.org/#[root@node3 conf] # cd / usr/local/redis/bin/ [root@node3 bin] # lsmkreleasehdr.sh redis-check-aof redis-cli redis-serverredis-benchmark redis-check-rdb redis- Sentinel redis-trib.rb [root@node3 bin] #. / redis-trib.rb create-- replicas 1127.0.0.1: 7000127.0.1redis-trib.rb create 7001127.0.0.1: 7002 127.0.0.1redis-trib.rb create 7003 127.0.0.1Vera 7004 127.0.0.1rig 7005 > > Creating cluster > Performing hash slots allocation on 6 nodes...Using 3 masters:127.0.0.1:7000127.0.0.1:7001127.0.0.1: 7002Adding replica 127.0.0.1 to 127.0.0.1:7001Adding replica 7004 to 127.0.0.1:7001Adding replica 127.0.0.1 to 127.0.1 7002M: de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1 de6c4b00953b0e354ea375106f29bd627ed3ab2e 7000000 slots:0-5460 (5461 slots) masterM: fce2cebafefeb540592c624c68b741d465ce095b 127.0.0.1 slots 7001 slots:5461-10922 (5462 slots) masterM: 83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1 slots 7002 slots:10923 -16383 (5461 slots) masterS: af00ce59424417ab1cfba4edc145223d4b3ac999 127.0.0.1 af00ce59424417ab1cfba4edc145223d4b3ac999 7003 replicates de6c4b00953b0e354ea375106f29bd627ed3ab2eS: 64391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1 af00ce59424417ab1cfba4edc145223d4b3ac999 7004 replicates fce2cebafefeb540592c624c68b741d465ce095bS: 3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.0.1 af00ce59424417ab1cfba4edc145223d4b3ac999 7005 replicates 83474177e39b72145adaad60cad1fe4523a0ee79Can I set the above configuration? (type 'yes' to accept): yes > Nodes configuration updated > > Assign a different config epoch to each node > > Sending CLUSTER MEET messages to join the clusterWaiting for the cluster to join.... > > Performing Cluster Check (using node 127.0.0.1 master 7000) M: de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1 master 7001 slots:5461-10922 (5462 slots) master 1 additional replica (s) S: af00ce59424417ab1cfba4edc145223d4b3ac999 127. 0.0.1 slots 7003 slots: (0 slots) slave replicates de6c4b00953b0e354ea375106f29bd627ed3ab2eM: 83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1 83474177e39b72145adaad60cad1fe4523a0ee79 7002 slots:10923-16383 (5461 slots) master 1 additional replica (s) S: 64391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1 83474177e39b72145adaad60cad1fe4523a0ee79 7004 slots: (0 slots) slave replicates fce2cebafefeb540592c624c68b741d465ce095bS: 3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.0.1slave replicates de6c4b00953b0e354ea375106f29bd627ed3ab2eM 7005 slots: (0 slots) slave replicates 83474177e39b72145adaad60cad1fe4523a0ee79 [OK] All nodes agree about slots configuration. > Check for open slots... > > Check slots coverage... [OK] All 16384 slots covered.

# log in to the cluster

[root@node3] # / usr/local/redis/bin/redis-cli-c-h 127.0.0.1-p 7000127.0.1cluster nodesfce2cebafefeb540592c624c68b741d465ce095b 7001 master-01495358027725 2 connected 5461-10922de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1VV 7000 myself Master-00 1 connected 0-5460af00ce59424417ab1cfba4edc145223d4b3ac999 127.0.0.1 5460af00ce59424417ab1cfba4edc145223d4b3ac999 7003 slave de6c4b00953b0e354ea375106f29bd627ed3ab2e 0 1495358029772 4 connected83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1 master-01495358025682 3 connected 10923-1638364391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1Rover 7004 slave fce2cebafefeb540592c624c68b741d465ce095b 0 1495358028748 5 connected3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.1005 slave 83474177e39b72145adaad60cad1fe4523a0ee79 01495358026706 connected127.0.0.1:7000 > cluster infocluster_state:okcluster_slots_assigned:16384cluster_slots_ok:16384cluster_slots_pfail:0cluster_slots_fail:0cluster_known_nodes:6cluster_size:3cluster _ current_epoch:6cluster_my_epoch:1cluster_stats_messages_sent:77cluster_stats_messages_received:77127.0.0.1:7000 > cluster nodesfce2cebafefeb540592c624c68b741d465ce095b 127.0.0.1 master 7001 master-0 1495358038300 2 connected 5461-10922de6c4b00953b0e354ea375106f29bd627ed3ab2e 127.0.0.1 Vol 7000 myself Master-00 1 connected 0-5460af00ce59424417ab1cfba4edc145223d4b3ac999 127.0.0.1 5460af00ce59424417ab1cfba4edc145223d4b3ac999 7003 slave de6c4b00953b0e354ea375106f29bd627ed3ab2e 0 1495358039395 4 connected83474177e39b72145adaad60cad1fe4523a0ee79 127.0.0.1 master-01495358036106 3 connected 10923-1638364391b1f359b6bfdfdd5373c71388fb119dc2bb3 127.0.0.1From 7004 slave fce2cebafefeb540592c624c68b741d465ce095b 01495358033918 5 connected3509837665c9cfe7a798513b87c84c9b2d3c9f1d 127.0.0.1005 slave 83474177e39b72145adaad60cad1fe4523a0ee79 01495358040489 6 connected127.0.0.1:7000 >

# redis cluster built successfully