miraculixx

Celery worker blocks on rate limited task
=========================================
by github.com/miraculixx

Problem:

    If a worker has a rate_limit active on some task, and that task
    arrives (is received)  more often than the rate limit interval, all
    worker processes will block on these task instances and stop
    consuming other tasks as soon as the prefetch count has maxed out

adam-hanna

Introduction

I often find myself ssh'ing into my servers and checking my systemd service logs with $ journalctl -f -u {name}.service. One day I got tired of this and wanted all of my important logs in once place (Amazon AWS Cloudwatch). To my dismay, there weren't any real good tutorials on how to do so. So, voilà.

Steps

Overall, it's a fairly simple process consisting of the following few steps.

1. Modify the service file

Open the service file with $ sudo vi /lib/systemd/system/{name}.service

Modify the [Service] section:

somazx

/*
    Purpose: easily obtain a list of your humble bundle games that haven't been redeemed.
    
    Instructions: 
    1) Log into Humble Bundle as usual. 
    2) Navigate to https://www.humblebundle.com/home/keys
    3) Open browser console and run the following script in the console
    
    Script will dump to console the scraped list of all your unredeemed game keys.
    

disintegrator

brew install caddy mkcert nss dnsmasq

mkcert -install

mkcert '*.app.test' '*.cdn.test'

# rename the certs and move them under /usr/local/etc/caddy/certs

cat <<EOF > /usr/local/etc/caddy/Caddyfile
*.app.test:443, *.cdn.test:443 {

ipbastola

JQ to filter JSON by value

Syntax: cat <filename> | jq -c '.[] | select( .<key> | contains("<value>"))'

Example: To get json record having _id equal 611

cat my.json | jq -c '.[] | select( ._id | contains(611))'

Remember: if JSON value has no double quotes (eg. for numeric) to do not supply in filter i.e. in contains(611)

mystelynx

# zgen
export ZGEN_RESET_ON_CHANGE=($HOME/.zshrc)
source $HOME/src/github.com/tarjoilija/zgen/zgen.zsh

if ! zgen saved; then
	echo "Creating a zgen save"

	zgen prezto editor key-bindings 'emacs'
	zgen prezto prompt theme 'sorin'

denji

Moved to git-repository: https://github.com/denji/awesome-http-benchmark

Tools

Located in alphabetical order (not prefer)

• ab – slow and single threaded, written in C
• apib – most of the features of ApacheBench (ab), also designed as a more modern replacement, written in C
• autocannon – fast HTTP/1.1 benchmarking tool written in Node.js
• baloo – Expressive end-to-end HTTP API testing made easy, written in Go (golang)