Error connecting Nodejs app to Redis on Heroku
I have a Nodejs application that I was using Redis for to handle the sessions. I am using connect-redis npm package. Now, I deployed the same Nodejs app to heroku but I do not know if there is a way…
Redis keeps failing on Windows 10 with Node.JS : Error: Redis connection to 127.0.0.1:6379 failed – connect ECONNREFUSED 127.0.0.1:6379
Consider the code : const mongoose = require("mongoose"); const redis = require("redis"); const util = require("util"); const redisUrl = "redis://127.0.0.1:6379"; const client = redis.createClient(redisUrl); client.hget = util.promisify(client.hget); const exec = mongoose.Query.prototype.exec; mongoose.Query.prototype.cache = function(options = {}) { this.useCache = true;…
How many channels can Redis support for PUB/SUB?
I just got started with Redis and i'm trying to understand how does it work, so i apologize if what i'm gonna say is not correct. I want to build a real time system where a Python application (which we…
How to handle "Redis.exceptions.ConnectionError: Connection has data"
I receive following output: Traceback (most recent call last): File "/home/ec2-user/env/lib64/python3.7/site-packages/redis/connection.py", line 1192, in get_connection raise ConnectionError('Connection has data') redis.exceptions.ConnectionError: Connection has data During handling of the above exception, another exception occurred: Traceback (most recent call last): File "/home/ec2-user/env/lib64/python3.7/site-packages/eventlet/hubs/hub.py", line…
Redis deployment in Kubernetes
I am trying to run a Redis cluster on Kubernetes. I am not planning to persist any Redis data to the disk. Is it possible to run the Redis cluster as Kubernetes deployment and not as a stateful set?
Redis – How to avoid reloading ML model every time when I call python script?
I have two files, file1.py which have ML model size of 1GB and file2.py which calls get_vec() method from file1 and receives vectors in return. ML model is being loaded everytime when file1 get_vec() method is called. This is where…
Redis CLI not showing recently stored key via Laravel
I am trying to cache my results using redis in Laravel by doing this $result = Cache::remember('orders_cache', 10, function () use ($orders) { return $orders; }); return $result; When I go in my Redis-Cli and do KEYS *, I don't…
MasterNotFoundError using redis-py when connecting to Redis Sentinel Cluster
I'm facing a MasterNotFoundError when I try to connect to the master node by following the deployment guide here: https://docs.bitnami.com/tutorials/deploy-redis-sentinel-production-cluster/ My code to connect to the master Redis Sentinel node is: from redis.sentinel import Sentinel redis_host = 'redis.default.svc.cluster.local' redis_port =…
Redis streams – remove / expire events based on time
I am playing with redis stream and it is good so far. I am trying to understand if there is anyway for me to expire the old events based on time or some other way. I know that we can…
Bursts of Redis errors
We've recently created a new Standard 1 GB Azure Redis cache specifically for distributed locking - separated from our main Redis cache. This was done to improve stability on our main Redis cache which is a very long term issue…