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Choose any technology/language (other than BASH or basic CLI) to implement this using one or more Redis data type(s): 1. Insert the values 1 to 10 000 into the Redis instance you have on Server A. 2. Read and print them in reverse order from the Redis Enterprise database in Server B. 3. Explore the data using Redis Insight. 4. What would you do to insert a lot of values (like hundreds of millions) with multiple threads and clients and read and print those in reverse order from consumer clients? What if Server B is now a sharded database with 2 primary shards across multiple nodes?
avatar

Solution Architect

Interviewed at Redis

4.2★
Sep 5, 2025

Choose any technology/language (other than BASH or basic CLI) to implement this using one or more Redis data type(s): 1. Insert the values 1 to 10 000 into the Redis instance you have on Server A. 2. Read and print them in reverse order from the Redis Enterprise database in Server B. 3. Explore the data using Redis Insight. 4. What would you do to insert a lot of values (like hundreds of millions) with multiple threads and clients and read and print those in reverse order from consumer clients? What if Server B is now a sharded database with 2 primary shards across multiple nodes?

Install standalone Redis Community Edition on Server A (see IP addresses at the end of this document). 2. Change the default port from default 6379 to something else in the /etc/redis/redis.conf file and also configure a password (search for the option, don’t use ACL), disable specific “bind” options to listen on all IP addresses, and turn off “protected-mode”. You have to be able to connect with Redis CLI (redis-cli -p PORT -a PASSWORD) and also with Redis Insight using the public IP address. 3. Download Redis Software (Redis Enterprise, version for Ubuntu 22 - 7.8) on Server B. 4. Setup Redis Enterprise on that server. See caveat for port 53. Consider using no DNS, as you can have “cluster.com” as a fake cluster name and then use the public IP to access the admin web UI and your Redis database. This is a single node cluster. 5. Create a Redis database on this Redis Enterprise cluster. 6. Find and use memtier-benchmark (a CLI tool created by Redis). Run it on Server B to load data into the standalone Redis on server A. 7. Configure the Redis Enterprise database with the “Replica Of geo-distributed Redis” feature (Source: server A standalone Redis, Target: Redis Enterprise database). Use Redis CLI to validate the data was copied over from one instance to the other.
avatar

Solution Architect

Interviewed at Redis

4.2★
Sep 5, 2025

Install standalone Redis Community Edition on Server A (see IP addresses at the end of this document). 2. Change the default port from default 6379 to something else in the /etc/redis/redis.conf file and also configure a password (search for the option, don’t use ACL), disable specific “bind” options to listen on all IP addresses, and turn off “protected-mode”. You have to be able to connect with Redis CLI (redis-cli -p PORT -a PASSWORD) and also with Redis Insight using the public IP address. 3. Download Redis Software (Redis Enterprise, version for Ubuntu 22 - 7.8) on Server B. 4. Setup Redis Enterprise on that server. See caveat for port 53. Consider using no DNS, as you can have “cluster.com” as a fake cluster name and then use the public IP to access the admin web UI and your Redis database. This is a single node cluster. 5. Create a Redis database on this Redis Enterprise cluster. 6. Find and use memtier-benchmark (a CLI tool created by Redis). Run it on Server B to load data into the standalone Redis on server A. 7. Configure the Redis Enterprise database with the “Replica Of geo-distributed Redis” feature (Source: server A standalone Redis, Target: Redis Enterprise database). Use Redis CLI to validate the data was copied over from one instance to the other.

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