sub314xxl

Google Summer of Code 2024 Final Submission - Jitsi Meet Log Analyser

Organization: Jitsi

Project Name: Log Analyser for Jitsi Meet using Grafana, Loki, and OpenTelemetry

Mentors: Aaron van Meerten Boris Grozev Lucian-Paul Torje

Contributor: Ilayda Nur Dastan

sub314xxl

# paste to .bashrc on host with domain's public IP
# usage: certbotless YOUR.DOMAIN.TLD

certbotless() {

  if [ -z "$1" ]; then
    return 1
  fi

  DOMAIN=$1

sub314xxl

// Fastest install script for npm 7.0+
// usage: node install

const fs = require('fs');

const readLockFile = path => {
    if (fs.existsSync(path)) {
        const text = fs.readFileSync(path, { encoding:'utf8', flag:'r' });
        const lockFile = JSON.parse(text);
        delete lockFile.dependencies;

sub314xxl

Audio Mod Troubleshooting Guide

Search the XDA thread

This should always be your first step. More than likely, your question has already been answered...multiple times

Logs

If you make a post stating a problem without any logs, nobody can help you and will likely ignore it (at least I will)

• Get a full logcat. If using adb, use adb logcat -d > log.txt
  • This should be taken after attempting to open the app
• Get an audio dumpsys:

sub314xxl

# Script to ensure wireless lan radio is ON or OFF #
# between user selected times #
# The radio ON/OFF operation will not be performed if the system #
# clock is not in sync with local time, unless so required #
# Remember router is set back to default time after a reboot #
# Schedule this script at required intervals #
# Written by Peter James 2012-07-19 #
# Tested on RB751U and RouterOS v5.19 #

#####################################

sub314xxl

Get-WinEvent -FilterHashtable @{LogName="Microsoft-Windows-Diagnostics-Performance/Operational"; Id=100} -MaxEvents 10 | ForEach-Object {
    # convert the event to XML and grab the Event node
    $eventXml = ([xml]$_.ToXml()).Event
    # output 
    [PSCustomObject]@{
        'Computer' = $eventXml.System.Computer
        'BootTime' = [int64]($eventXml.EventData.Data | Where-Object {$_.Name -eq 'BootTime'}).InnerXml
        'BootFinished' = [datetime]($eventXml.EventData.Data | Where-Object {$_.Name -eq 'BootEndTime'}).InnerXml
    }
}

sub314xxl

for ns in $(kubectl get ns -o name | cut -d'/' -f2); do
  for pod in $(kubectl get pods -n $ns --field-selector=status.phase!=Running -o name | cut -d'/' -f2); do
    kubectl delete pod -n $ns $pod
  done
  for rs in $(kubectl get rs -n "$ns" -o name | cut -d'/' -f2); do
    kubectl delete rs -n $ns $rs
  done
done
kubectl get pods -A && kubectl top pods -A && kubectl top node

sub314xxl

Kubectl output options

Let's look at some basic kubectl output options.

Our intention is to list nodes (with their AWS InstanceId) and Pods (sorted by node).

We can start with:

kubectl get no

sub314xxl

About

• I faced bandwidth issues between a WG Peer and a WG server. Download bandwidth when downloading from WG Server to WG peer was reduced significantly and upload bandwidth was practically non existent.
• I found a few reddit posts that said that we need to choose the right MTU. So I wrote a script to find an optimal MTU.
• Ideally I would have liked to have run all possible MTU configurations for both WG Server and WG Peer but for simplicity I choose to fix the WG Server to the original 1420 MTU and tried all MTUs from 1280 to 1500 for the WG Peer.

Testing

• On WG server, I started an iperf3 server
• On WG peer, I wrote a script that does the following:
  • wg-quick down wg0
• Edit MTU in the /etc/wireguard/wg0.conf file

sub314xxl

#!/usr/bin/env bash

NODESAPI=/api/v1/nodes

function getNodes() {
  kubectl get --raw $NODESAPI | jq -r '.items[].metadata.name'
}

function getPVCs() {
  jq -s '[flatten | .[].pods[].volume[]? | select(has("pvcRef")) | '\