rms1000watt

MongoDB Hello World Wildcard Index on Single Field

Reference: https://www.mongodb.com/docs/manual/core/indexes/index-types/index-wildcard/create-wildcard-index-single-field/

Start MongoDB

# in one terminal
docker run -it --rm -p 27017:27017 mongo:7

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MongoDB Hello World index on embedded document fields within arrays

Reference: https://www.mongodb.com/docs/manual/core/indexes/index-types/index-multikey/create-multikey-index-embedded/

Start MongoDB

# in one terminal
docker run -it --rm -p 27017:27017 mongo:6

rms1000watt

#!/usr/bin/env bash

set -e

# check if disk is attached
sda1_attached=false
sdb1_attached=false

if lsblk | grep -q "sda1"; then
	sda1_attached=true

rms1000watt

// from chatgpt
// list all event listeners on process
const eventNames = process.eventNames();
eventNames.forEach((eventName) => {
    const listeners = process.listeners(eventName);
    console.log(`Event: ${eventName}`);
    console.log(`Listeners:`);
    listeners.forEach((listener, index) => {
        console.log(`  Listener ${index + 1}: ${listener.toString()}`);
        // Note: listener.toString() might not always give meaningful information,

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docker run -it --rm --init "${DOCKER_IMAGE}"

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kill -STOP "${PID}"
kill -CONT "${PID}"

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const Benchmark = require('benchmark');

suite
.add('test1', function() {
  console.log('stuff');
})
.add('test2', function() {
  console.log('stuff');
})
.on('cycle', function(event) {

rms1000watt

asdf plugin add gcloud https://github.com/jthegedus/asdf-gcloud
echo "gcloud 410.0.0" >> ~/.tool-versions
asdf install
gcloud auth login
gcloud projects list
gcloud config set project $GCP_PROJECT_ID

# pull logs from cloudbuild

# add grep to this command for specific hash.. then cut -d' ' -f1 for the ID.. maybe can filter directly

rms1000watt

If you're using AWS EKS and for some reason you get:

no space left on device: unknown

Check if:

• you're using XFS
• your disk usage is < 85% (At 85%, k8s triggers GC)
• you're pulling large 2GB docker images OR docker images with node_modules with hundreds of thousands of files

Then consider inode contiguous fragmentation issue:

rms1000watt

#!/usr/bin/env bash

if type -a ryan; then
	echo ryan already installed
	sudo apt remove ryan -y
fi

version="0.0.1"

sudo rm -rf "ryan-${version}" ||: