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AWS Elasticache

Commands

# List cache clusters
aws elasticache describe-cache-clusters --region us-east-1

Admin Commands

# Create a redis cache cluster
aws elasticache create-cache-cluster --cache-cluster-id my-cluster --engine redis --cache-node-type cache.t2.micro --num-cache-nodes 1 --region us-east-1

# Create a memcached cache cluster
aws elasticache create-cache-cluster --cache-cluster-id my-cluster --engine memcached --cache-node-type cache.t2.micro --num-cache-nodes 1 --region us-east-1

# Modify a cache cluster
aws elasticache modify-cache-cluster --cache-cluster-id my-cluster --num-cache-nodes 3 --apply-immediately --region us-east-1

# Delete a cache cluster
aws elasticache delete-cache-cluster --cache-cluster-id my-cluster --region us-east-1

Data Commands - Redis

# Connect to the Redis server
redis-cli -h my-cluster.abc123.0001.usw2.cache.amazonaws.com -p 6379

# Set a key
set mykey myvalue

# Get a key
get mykey

Data Commands - Memcached (telnet)

# Connect to the Memcached server
telnet my-cluster.abc123.0001.usw2.cache.amazonaws.com 11211

# Set a key
set mykey 0 900 5
myval
STORED

# Get a key
get mykey
VALUE mykey 0 5
myval
END

Data Commands - Memcached (netcat)

An alternative to telnet is netcat (nc). It's a simple Unix utility that reads and writes data across network connections, using TCP or UDP protocol.

# Connect to the Memcached server
echo -e 'stats\nquit' | nc my-cluster.abc123.0001.usw2.cache.amazonaws.com 11211

# Set a key
echo -e 'set mykey 0 900 5\nmyval\nquit' | nc my-cluster.abc123.0001.usw2.cache.amazonaws.com 11211

# Get a key
echo -e 'get mykey\nquit' | nc my-cluster.abc123.0001.usw2.cache.amazonaws.com 11211

References

Last update: May 6, 2024