redis-cluster | HA Redis Cluster with Sentinel by Docker Compose | Machine Learning library

I create a redis cluster with docker-compose and when I try to connect the cluster from my local machine with a java app, which also docker is located in, but lettuce gets timeout while jedis connects to cluster. Lettuce connects to main servers which are 7001 7002 7003 and after that it discover other nodes and again try to connect them and gets time out. Here is my code.

Docker-compose.yml

I have a docker compose containerized client/server node app that is failing to create a stable connection to a redis cluster I have running on my local environment. The redis cluster has 6 nodes (3 master, 3 replica configuration) running on my local machine. Every time I start my app and attempt to connect to redis, the connect event is spammed and I get the following error on my client:

I have tried to make a redis cluster in k8s environment using "NodePort" type of service. More specifically, I want to compose a redis cluster across two different k8s cluster.

When I used LoadBalancer(External IP) for service type, cluster was made successfully. The problem is NodePort.

After I command redis-cli --cluster create, it stucks on "Waiting for the cluster to join"

Below is the logs of cluster create command. I deployed 4 leader pods and 4 slave pods with individual nodeport service.

We're using binami redis-cluster

We have 2 different datacenter serving users from 2 regions. Both are connected via AWS direct connect. How can we expand our Redis cluster with another node from another EKS (Kubernetes) Cluster? So the API server on another EKS cluster can read from Redis much faster.

$ kubectl get all -n redis-ha

I'm building a Spring application to capture data from ~100 websocket clients, then store the data in a queue-like way in a Redis server. The issue is that the server starts to freeze up over time, and eventually the websocket clients disconnect due to host timeouts.

I initially thought the issue was with using Spring Redis Repositories, but the issue persisted once I switched to Redis Templates.

I then thought that the issue was with (de)serialization of Redis objects, and for some time, it was the issue. Through profiling, I found that parsing doubles from strings is slow (when processing thousands per second), so I instead wrote a serialization function to convert double arrays into byte arrays for Redis. This greatly reduced CPU time.

Is it possible to start single node/container redis cluster?

I am using bitnami/redis-cluster image, When I start master using the following commmand

I have a Redis cluster in AWS ElastiCache

Recently I have been using spring-boot-starter-data-redis;

I use spring-boot-version:2.3.8.RELEASE;

application.yml

I have created a RedisCluster using aws-cdk(python). everything is fine in case of deploying this cluster.

Issue Today when I want to increase/decrease the num of nodes for this RedisCluster using AWS-CDK(PYTHON), I am experiencing the below error.