According to this Lua optimization doc: https://www.lua.org/gems/sample.pdf Access to external locals (that is, variables that are local to an enclosing function) is not as fast as access to local variables, but it is still faster than access to globals. Consider…
When I tried to deploy AdonisJS to digital ocean or Azure, I get this error [ioredis] Unhandled error event: Error: read ECONNRESET at TCP.onStreamRead (internal/stream_base_commons.js:209:20) My Adonis app requires Redis to run. I'm using a Redis instance from Digital Ocean.…
I have a web-app with Django backend and react frontend where inside an organization or company, there are multiple users. Now, I am trying to implement real-time commenting system where if one user types any comment and posts it, another…
I am facing the following error message on my Django application: Exception inside application: 'Redis' object has no attribute 'bzpopmin' Traceback (most recent call last): File "/home/jack/.conda/envs/GuessWhich/lib/python3.7/site-packages/channels/staticfiles.py", line 44, in __call__ return await self.application(scope, receive, send) File "/home/jack/.conda/envs/GuessWhich/lib/python3.7/site-packages/channels/routing.py", line 71,…
I need to find a way to save ffmpeg frames into redis variable. Currently I'm piping png images from ffmpeg to redis but it concatenate all images: ffmpeg -re -i udp://127.0.0.1:5545 -c:v png -r 1 -update 1 - | redis-cli…
I have a timeseries I want to compute a rolling sum of. My idea (which is probably suboptimal already) is to have a script to compute each data point then run it from python in a pipeline. I struggle with…
My question is about a fundamental functionality of the distributed cache, my use case is a rate limiter implementation on a load balanced environment, each request from the same endpoint should increment a request-counter for that endpoint, I'm trying to…
I have a code that looks like the following console.time('setfoo') redis.set('foo', 'bar') ... let result = await redis.get('foo') console.timeEnd('setfoo') Response time for this get is 263ms but when I remove await it goes down to 0.037ms What could be the…
I have an Elastic Beanstalk environment with Application Load Balancer (ALB) setup on Node.js instance which server both REST APIs as well as Socket.IO connections. When the number of EC2 instances is more than one some of Socket.IO connections are…
I'm developing real-time app with Laravel. Since I don't want to use Pusher, I'm trying to make websockets work using Laravel Echo Server, Redis, and Socket.IO. However, I'm having a problem with this stack. The client (browser) can't seem to…