I – Trên server 01: thực hiện tạo ra 3 Node Redis theo các bước sau:
Bước 1: Cài đặt các gói cần thiết
sudo apt install make gcc libc6-dev tcl
Ubuntu: sudo apt install make gcc libc6-dev tcl CentOS: sudo yum install make gcc libc6-dev tcl
Bước 2: Download file cài đặt
wget http://download.redis.io/redis-stable.tar.gz
Giải nén và tạo các Node Redis: redis_node1, redis_node2, redis_node3
tar xvzf redis-stable.tar.gz cd redis-stable mkdir -p /u01/redis/redis_node1 mkdir -p /u01/redis/redis_node2 mkdir -p /u01/redis/redis_node3 make PREFIX=/u01/redis/redis_node1 install make PREFIX=/u01/redis/redis_node2 install make PREFIX=/u01/redis/redis_node3 install
Sau khi chạy xong sẽ tạo được 03 Node Redis như sau:
root@sip1:~/redis-stable/src# ls /u01/redis/redis_node1/bin/ redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-sentinel redis-server root@sip1:~/redis-stable/src# ls /u01/redis/redis_node2/bin/ redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-sentinel redis-server root@sip1:~/redis-stable/src# ls /u01/redis/redis_node3/bin/ redis-benchmark redis-check-aof redis-check-rdb redis-cli redis-sentinel redis-server
Để đảm bảo chạy cấu hình cluster yêu cầu cài tối thiểu trên 3 server gồm 3 node master và 3 node slave.
Một nút trong cụm Redis yêu cầu một cổng được xác định và một cổng cao hơn 10000. Trong trường hợp này, cả hai cổng TCP 6379 và 16379 đều được yêu cầu mở. Đảm bảo iptables hoặc ufw được định cấu hình đúng cách.
Tạo các thư mục: etc, log trong các Node vừa tạo:
mkdir -p /u01/redis/redis_node1/etc mkdir -p /u01/redis/redis_node1/log mkdir -p /u01/redis/redis_node2/etc mkdir -p /u01/redis/redis_node2/log mkdir -p /u01/redis/redis_node3/etc mkdir -p /u01/redis/redis_node3/log
Thêm cấu hình redis vào các node: Chú ý đổi thông tin IP/Port ở mỗi node
[root@redis-01]# vi /u01/redis/redis_node1/etc/redis.conf Redis configuration file example. # Note that in order to read the configuration file, Redis must be started with the file path as first argument: # ./redis-server /path/to/redis.conf ############################ NETWORK bind 10.58.69.10 protected-mode no port 8601 tcp-backlog 511 Close the connection after a client is idle for N seconds (0 to disable) timeout 120 TCP keepalive. tcp-keepalive 300 ########################### GENERAL daemonize no supervised no pidfile redis.pid loglevel notice logfile "log/full.log" databases 16 always-show-logo yes ########################## SNAPSHOTTING save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes The filename where to dump the DB dbfilename database.rdb The working directory. dir ./ ########################### REPLICATION masterauth Redis2018 slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 ############################ SECURITY requirepass Redis2018 ####################### LAZY FREEING lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no slave-lazy-flush no ######################## APPEND ONLY MODE appendonly yes The name of the append only file (default: "appendonly.aof") 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 no ########################## LUA SCRIPTING lua-time-limit 5000 ########################## REDIS CLUSTER cluster-enabled yes cluster-config-file etc/redis_cluster.conf cluster-node-timeout 15000 ############################ SLOW LOG slowlog-log-slower-than 10000 slowlog-max-len 128 ########################## LATENCY MONITOR latency-monitor-threshold 0 ####################### EVENT NOTIFICATION notify-keyspace-events "" ######################### ADVANCED CONFIG 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 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes ##################### ACTIVE DEFRAGMENTATION Maximal effort for defrag in CPU percentage active-defrag-cycle-max 75 cluster-require-full-coverage yes cluster-slave-validity-factor 10
[root@redis-01]# vi /u01/redis/redis_node2/etc/redis.conf Redis configuration file example. # Note that in order to read the configuration file, Redis must be started with the file path as first argument: # ./redis-server /path/to/redis.conf ############################ NETWORK bind 10.58.69.10 protected-mode no port 8602 tcp-backlog 511 Close the connection after a client is idle for N seconds (0 to disable) timeout 120 TCP keepalive. tcp-keepalive 300 ########################### GENERAL daemonize no supervised no pidfile redis.pid loglevel notice logfile "log/full.log" databases 16 always-show-logo yes ########################## SNAPSHOTTING save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes The filename where to dump the DB dbfilename database.rdb The working directory. dir ./ ########################### REPLICATION masterauth Redis2018 slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 ############################ SECURITY requirepass Redis2018 ####################### LAZY FREEING lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no slave-lazy-flush no ######################## APPEND ONLY MODE appendonly yes The name of the append only file (default: "appendonly.aof") 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 no ########################## LUA SCRIPTING lua-time-limit 5000 ########################## REDIS CLUSTER cluster-enabled yes cluster-config-file etc/redis_cluster.conf cluster-node-timeout 15000 ############################ SLOW LOG slowlog-log-slower-than 10000 slowlog-max-len 128 ########################## LATENCY MONITOR latency-monitor-threshold 0 ####################### EVENT NOTIFICATION notify-keyspace-events "" ######################### ADVANCED CONFIG 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 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes ##################### ACTIVE DEFRAGMENTATION Maximal effort for defrag in CPU percentage active-defrag-cycle-max 75 cluster-require-full-coverage yes cluster-slave-validity-factor 10
[root@redis-01]# vi /u01/redis/redis_node3/etc/redis.conf Redis configuration file example. # Note that in order to read the configuration file, Redis must be started with the file path as first argument: # ./redis-server /path/to/redis.conf ############################ NETWORK bind 10.58.69.10 protected-mode no port 8603 tcp-backlog 511 Close the connection after a client is idle for N seconds (0 to disable) timeout 120 TCP keepalive. tcp-keepalive 300 ########################### GENERAL daemonize no supervised no pidfile redis.pid loglevel notice logfile "log/full.log" databases 16 always-show-logo yes ########################## SNAPSHOTTING save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes The filename where to dump the DB dbfilename database.rdb The working directory. dir ./ ########################### REPLICATION masterauth Redis2018 slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 ############################ SECURITY requirepass Redis2018 ####################### LAZY FREEING lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no slave-lazy-flush no ######################## APPEND ONLY MODE appendonly yes The name of the append only file (default: "appendonly.aof") 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 no ########################## LUA SCRIPTING lua-time-limit 5000 ########################## REDIS CLUSTER cluster-enabled yes cluster-config-file etc/redis_cluster.conf cluster-node-timeout 15000 ############################ SLOW LOG slowlog-log-slower-than 10000 slowlog-max-len 128 ########################## LATENCY MONITOR latency-monitor-threshold 0 ####################### EVENT NOTIFICATION notify-keyspace-events "" ######################### ADVANCED CONFIG 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 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes ##################### ACTIVE DEFRAGMENTATION Maximal effort for defrag in CPU percentage active-defrag-cycle-max 75 cluster-require-full-coverage yes cluster-slave-validity-factor 10
II – Trên server 02: thực hiện tạo ra 3 Node Redis theo các bước sau:
Bước 3: Cài đặt trên Server 02:
mkdir -p /u01/redis/redis_node4/etc mkdir -p /u01/redis/redis_node4/log mkdir -p /u01/redis/redis_node5/etc mkdir -p /u01/redis/redis_node5/log mkdir -p /u01/redis/redis_node6/etc mkdir -p /u01/redis/redis_node6/log
Download và cài đặt tương tự như Server 01:
tar xvzf redis-stable.tar.gz cd redis-stable make PREFIX=/u01/redis/redis_node4 install make PREFIX=/u01/redis/redis_node5 install make PREFIX=/u01/redis/redis_node6 install
Cấu hình các node: chú ý đổi IP/Port tương ứng
[root@redis-02]# vi /u01/redis/redis_node4/etc/redis.conf Redis configuration file example. # Note that in order to read the configuration file, Redis must be started with the file path as first argument: # ./redis-server /path/to/redis.conf ############################ NETWORK bind 10.58.69.11 protected-mode no port 8604 tcp-backlog 511 Close the connection after a client is idle for N seconds (0 to disable) timeout 120 TCP keepalive. tcp-keepalive 300 ########################### GENERAL daemonize no supervised no pidfile redis.pid loglevel notice logfile "log/full.log" databases 16 always-show-logo yes ########################## SNAPSHOTTING save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes The filename where to dump the DB dbfilename database.rdb The working directory. dir ./ ########################### REPLICATION masterauth Redis2018 slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 ############################ SECURITY requirepass Redis2018 ####################### LAZY FREEING lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no slave-lazy-flush no ######################## APPEND ONLY MODE appendonly yes The name of the append only file (default: "appendonly.aof") 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 no ########################## LUA SCRIPTING lua-time-limit 5000 ########################## REDIS CLUSTER cluster-enabled yes cluster-config-file etc/redis_cluster.conf cluster-node-timeout 15000 ############################ SLOW LOG slowlog-log-slower-than 10000 slowlog-max-len 128 ########################## LATENCY MONITOR latency-monitor-threshold 0 ####################### EVENT NOTIFICATION notify-keyspace-events "" ######################### ADVANCED CONFIG 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 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes ##################### ACTIVE DEFRAGMENTATION Maximal effort for defrag in CPU percentage active-defrag-cycle-max 75 cluster-require-full-coverage yes cluster-slave-validity-factor 10
[root@redis-02]# vi /u01/redis/redis_node5/etc/redis.conf Redis configuration file example. # Note that in order to read the configuration file, Redis must be started with the file path as first argument: # ./redis-server /path/to/redis.conf ############################ NETWORK bind 10.58.69.11 protected-mode no port 8605 tcp-backlog 511 Close the connection after a client is idle for N seconds (0 to disable) timeout 120 TCP keepalive. tcp-keepalive 300 ########################### GENERAL daemonize no supervised no pidfile redis.pid loglevel notice logfile "log/full.log" databases 16 always-show-logo yes ########################## SNAPSHOTTING save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes The filename where to dump the DB dbfilename database.rdb The working directory. dir ./ ########################### REPLICATION masterauth Redis2018 slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 ############################ SECURITY requirepass Redis2018 ####################### LAZY FREEING lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no slave-lazy-flush no ######################## APPEND ONLY MODE appendonly yes The name of the append only file (default: "appendonly.aof") 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 no ########################## LUA SCRIPTING lua-time-limit 5000 ########################## REDIS CLUSTER cluster-enabled yes cluster-config-file etc/redis_cluster.conf cluster-node-timeout 15000 ############################ SLOW LOG slowlog-log-slower-than 10000 slowlog-max-len 128 ########################## LATENCY MONITOR latency-monitor-threshold 0 ####################### EVENT NOTIFICATION notify-keyspace-events "" ######################### ADVANCED CONFIG 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 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes ##################### ACTIVE DEFRAGMENTATION Maximal effort for defrag in CPU percentage active-defrag-cycle-max 75 cluster-require-full-coverage yes cluster-slave-validity-factor 10
[root@redis-02]# vi /u01/redis/redis_node6/etc/redis.conf Redis configuration file example. # Note that in order to read the configuration file, Redis must be started with the file path as first argument: # ./redis-server /path/to/redis.conf ############################ NETWORK bind 10.58.69.11 protected-mode no port 8606 tcp-backlog 511 Close the connection after a client is idle for N seconds (0 to disable) timeout 120 TCP keepalive. tcp-keepalive 300 ########################### GENERAL daemonize no supervised no pidfile redis.pid loglevel notice logfile "log/full.log" databases 16 always-show-logo yes ########################## SNAPSHOTTING save 900 1 save 300 10 save 60 10000 stop-writes-on-bgsave-error yes rdbcompression yes rdbchecksum yes The filename where to dump the DB dbfilename database.rdb The working directory. dir ./ ########################### REPLICATION masterauth Redis2018 slave-serve-stale-data yes slave-read-only yes repl-diskless-sync no repl-diskless-sync-delay 5 repl-disable-tcp-nodelay no slave-priority 100 ############################ SECURITY requirepass Redis2018 ####################### LAZY FREEING lazyfree-lazy-eviction no lazyfree-lazy-expire no lazyfree-lazy-server-del no slave-lazy-flush no ######################## APPEND ONLY MODE appendonly yes The name of the append only file (default: "appendonly.aof") 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 no ########################## LUA SCRIPTING lua-time-limit 5000 ########################## REDIS CLUSTER cluster-enabled yes cluster-config-file etc/redis_cluster.conf cluster-node-timeout 15000 ############################ SLOW LOG slowlog-log-slower-than 10000 slowlog-max-len 128 ########################## LATENCY MONITOR latency-monitor-threshold 0 ####################### EVENT NOTIFICATION notify-keyspace-events "" ######################### ADVANCED CONFIG 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 activerehashing yes client-output-buffer-limit normal 0 0 0 client-output-buffer-limit slave 256mb 64mb 60 client-output-buffer-limit pubsub 32mb 8mb 60 hz 10 aof-rewrite-incremental-fsync yes ##################### ACTIVE DEFRAGMENTATION Maximal effort for defrag in CPU percentage active-defrag-cycle-max 75 cluster-require-full-coverage yes cluster-slave-validity-factor 10
Bước 4: Tạo các script khởi động Node Redis
vi start_Redis.sh ./bin/redis-server etc/redis.conf &
Copy file start_Redis.sh vào thư mục của các node:
/u01/redis/redis-node-01 /u01/redis/redis-node-02 /u01/redis/redis-node-03 /u01/redis/redis-node-04 /u01/redis/redis-node-05 /u01/redis/redis-node-06
Gán quyền chạy cho script:
chmod +x start_Redis.sh
Bước 5: Khởi động các Node trên các server
./start_Redis.sh
Bước 6: Tạo Cluster
Login vào server 01 và chạy lệnh như sau:
cd /u01/redis/redis-node-01
./redis-cli –cluster create 10.58.69.10:8601 10.58.69.10:8602 10.58.69.10:8603 10.58.69.11:8604 10.58.69.11:8605 10.58.69.11:8606 –cluster-replicas 1 -a Redis2018
Bước 7: Kiểm tra kết nối
./redis-cli -h 10.58.69.10 -p 8601 -a Redis2018 -c
10.58.69.10:8601> cluster nodes
007b96a43d9648f699847db1e282c72aca067ed0 10.58.69.10:8603@18603 slave,fail? 1f496f0586a130f9b06ca7e7a7dee3578e280452 1617248823764 1617248823763 4 connected 5cb8e79c26d76d7c0af6cffd4592f2b71dff22fa 10.58.69.10:8602@18602 master,fail? - 1617248823764 1617248823763 2 connected 10923-16383 21f29a5be94330c1d210d04d7b83af8147b78dc4 10.58.69.11:8606@18606 slave a4437d6b57ceeb94c2480ec80c5b91724a509719 0 1617248928915 6 connected a4437d6b57ceeb94c2480ec80c5b91724a509719 10.58.69.10:8601@18601 master,fail? - 1617248823764 1617248823763 1 connected 0-5460 1f496f0586a130f9b06ca7e7a7dee3578e280452 10.58.69.11:8604@18604 master - 0 1617248929917 4 connected 5461-10922 83221c555833022568a073ecb1fd7f2eb18ea9ea 10.58.69.11:8605@18605 myself,slave 5cb8e79c26d76d7c0af6cffd4592f2b71dff22fa 0 1617248928000 5 connected
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