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Logging Library – Install & Integration Guide

This document explains:

1. Ensuring file logs are always colorless.
2. Converting the logger into a reusable library for other Bash scripts.
3. Where to install it on a Linux system (conventional paths), plus minimal packaging tips.

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Incredibly powerful Claude Code prompt when dealing with a pesky bug:

I am experiencing the following bug:

[explain_bug_here]

I need your help to identify the exact cause of this bug and implement an effective solution. To do this, carefully follow the workflow below, in this specific order:

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# Use a specific Ubuntu version for better reproducibility
FROM mcr.microsoft.com/devcontainers/base:ubuntu-22.04

# Find the latest URL from: https://dev.mysql.com/downloads/shell/
# Make sure to select "Ubuntu Linux" and version "Ubuntu Linux 22.04 (x86, 64-bit)"
ARG MYSQL_SHELL_URL="https://dev.mysql.com/get/Downloads/MySQL-Shell/mysql-shell_8.0.43-1ubuntu22.04_amd64.deb"

# Set DEBIAN_FRONTEND to noninteractive to prevent prompts during build
ENV DEBIAN_FRONTEND=noninteractive

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Backend Architectures

Twitter

ror, scala, jetty, erlang, thrift, mongrel, comet server, my-sql, memchached, varnish, kestrel(mq), starling, gizzard, cassandra, hadoop, vertica, munin, nagios, awstats

• Introduce Gizzard of Twitter - 트위터의 새로운 분산 관리 라이브러리 Gizzard를 소개합니다.
• The Architecture Twitter Uses to Deal with 150M Active Users, 300K QPS, a 22 MB/S Firehose, and Send Tweets in Under 5 Seconds
• Scaling Twitter: Making Twitter 10000 Percent Faster

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Complete MySQL Export Guide - 100% Database Replication

Overview

This guide provides instructions for creating a complete 1:1 MySQL export that includes all databases, users with passwords, triggers, events, and procedures for testing environments.

Table of Contents

• Quick Start - Simple Complete Backup
• What Gets Exported
• Restoration Process
• Verification

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You are Manus, an AI agent created by the Manus team.

You excel at the following tasks:
1. Information gathering, fact-checking, and documentation
2. Data processing, analysis, and visualization
3. Writing multi-chapter articles and in-depth research reports
4. Creating websites, applications, and tools
5. Using programming to solve various problems beyond development
6. Various tasks that can be accomplished using computers and the internet

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You are an AI assistant tasked with creating a highly engaging, personalized check-in flow for a user. This flow should emulate a beautifully designed iOS app, focusing on simplicity, clear call-to-actions, and an overall delightful user experience. Your role combines that of a personality coach and an expert UX designer.

Here's the theme for today's check-in: {{THEME}}

And here's the context we have about the user: <user_context> {{USER_CONTEXT}}

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How to use:

jbolus@sandbox:/tmp$ chmod +x mysql-conf-optimizer.sh
jbolus@sandbox:/tmp$ ./mysql-conf-optimizer.sh
MySQL Optimization Suggestions:
---------------------------------
innodb_buffer_pool_size: 24GB
innodb_buffer_pool_instances: 20
innodb_io_capacity: 4000

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#!/bin/bash
# https://docs.rockylinux.org/guides/interoperability/import_rocky_to_wsl/
sudo dnf upgrade --refresh
dnf upgrade --refresh
sudo
dnf install -y nano mc passwd sudo dnf-plugin-config-manager wget dnf-plugins-core tree dos2unix epel-release NetworkManager iproute
su root
sudo mc
ls
sudo dnf config-manager --set-enabled crb

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Troubleshooting High CPU in MySQL

tags: linux dba mysql

Overview

With MySQL 5.7, the PERFORMANCE_SCHEMA.THREADS table added THREAD_OS_ID. This column helps identify sessions consuming high CPU resources, especially when one query overloads a CPU core.

To troubleshoot, use pidstat from the sysstat package. The -t option shows thread-level usage, and -p with the MySQL process ID filters results to MySQL threads: