Redis Installation and Cluster Formasion

Follow the Redis installation guide and cluster ceration steps as outlined in the reference documentation.

Reference: https://www.cnblogs.com/a120608yby/p/17167566.html

Twemproxy Installation and Configuration

# Download the package
wget https://github.com/twitter/twemproxy/releases/download/0.5.0/twemproxy-0.5.0.tar.gz -P /opt/downloads

# Build and install
cd /opt/downloads
tar xf twemproxy-0.5.0.tar.gz
cd twemproxy-0.5.0
./configure --prefix=/usr/local/twemproxy
make && make install

# Copy service startup script
cp scripts/nutcracker.init /etc/init.d/proxy-service
chmod +x /etc/init.d/proxy-service

# Configure environment variables
# vim /etc/profile.d/proxy.sh
export PATH=$PATH:/usr/local/twemproxy/sbin
# source /etc/profile.d/proxy.sh

# Modify configuration file
# mkdir /etc/proxy /usr/local/twemproxy/conf -p
# cat /usr/local/twemproxy/conf/proxy-config.yml 
cluster-alpha:
  listen: 10.32.161.130:22121
  hash: fnv1a_64
  distribution: ketama
  auto_eject_hosts: true
  redis: true
  redis_auth: securePass123
  server_retry_timeout: 2000
  server_failure_limit: 1
  servers:
   - 10.32.161.131:6379:1
   - 10.32.161.132:6379:1
   - 10.32.161.133:6379:1
   - 10.32.161.134:6379:1
   - 10.32.161.135:6379:1
   - 10.32.161.136:6379:1
# ln -sv /usr/local/twemproxy/conf/proxy-config.yml /etc/proxy/proxy-config.yml
# chown -R nobody. /etc/proxy /usr/local/twemproxy/

# Start the service
chkconfig proxy-service on
/etc/init.d/proxy-service start

Verification

# redis-cli -c -h 10.32.161.130 -p 22121 -a securePass123
Warning: Using a password with '-a' or '-u' option on the command line interface may not be safe.
10.32.161.130:22121> set data1 111
OK
10.32.161.130:22121> set data2 222
-> Redirected to slot [4998] located at 10.32.161.130:6379
OK
10.32.161.130:6379> set data3 333
OK
10.32.161.130:6379> set data4 444
-> Redirected to slot [13120] located at 10.32.161.132:6379
OK
10.32.161.132:6379> set data5 555
-> Redirected to slot [9057] located at 10.32.161.131:6379
OK
10.32.161.131:6379> set data6 666
-> Redirected to slot [4866] located at 10.32.161.130:6379
OK
10.32.161.130:6379> get data3
"333"
10.32.161.130:6379> get data6
"666"
10.32.161.130:6379> get data1
-> Redirected to slot [9189] located at 10.32.161.131:6379
"111"
10.32.161.131:6379> get data2
-> Redirected to slot [4998] located at 10.32.161.130:6379
"222"
10.32.161.130:6379> get data5
-> Redirected to slot [9057] located at 10.32.161.131:6379
"555"
10.32.161.131:6379> get data4
-> Redirected to slot [13120] located at 10.32.161.132:6379
"444"

References

https://github.com/twitter/twemproxy