Deploying Multiple MySQL Instances and Resetting the Root Password
This guide walks through two common operational tasks: bootstrapping several isolated MySQL instances on the same host and regaining access when the root credentials are lost.
Anatomy of a MySQL Option File
# /etc/my.cnf or any *.cnf under /etc/my.cnf.d/
[mysqld] # server-only settings
user=mysql
basedir=/usr/local/mysql
datadi ...
Posted on Mon, 18 May 2026 11:12:21 +0000 by amitsonikhandwa
Deploying Multiple ZooKeeper Instances on a Single Host
Environment Setup
Target system: CentOS 7.3 (sinngle machine)
ZooKeeper version: 3.5.2
Installation path: /opt/zk
Instance ports: 2181, 2182, 2183
Config files: /opt/zk/conf/node1.cfg through node3.cfg
Install rqeuired Java runtime:
yum install java-1.8.0-openjdk -y
Installation Steps
Download the distribution package:
wget https://archive.apa ...
Posted on Thu, 07 May 2026 17:00:49 +0000 by HowdeeDoodee