Category: MySQL

MYSQL / AURORA Database Troubleshooting

Number of Connections by Host  SELECT SUBSTRING(HOST, 1, 10) , DB,USER , COUNT(*) AS Count FROM information_schema.processlist group by SUBSTRING(HOST, 0, 10) , DB,USER ORDER BY Count desc ; — ‘10.10.50.22’, ‘Portal’, ‘webguest-dev’, ’46’ Aurora Max Connections select AURORA_VERSION(); select

AWS AURORA RDS – Loading Billion Rows

We do online assessment and reporting for K-12 Education Industry. ( http://emetric.net/ ). We had a need to load 3 through K-12 students historical test reports for entire state for past 10 + years , which ended up being close to billion rows for historical data.

Amazon reInvent 2015 Las Vegas

Highlights: Data Migration Tool – We use aurora and data loading is little more than  walk in the park. Hope this solves our problem. QuickSight – Explore this product for our needs RedShift – See how it can cutdown our Data

Importing and Exporting Data From a MySQL DB Instance

Importing and Exporting Data into Amazon RDS We had a business need to load ~ Billion rows of Data into MySQL or Aurora Database. These are the information I gathered on optimizing load process. Load Data Infile Link to MySQL

MySQL Ramp Up

MYSQL: Add Column to Existing Table and Make it Auto Increment and Add Primary Key Constraint Link : Alter Table and Add Column ALTER TABLE StudentPortalData ADD StudentPortalDataID INT UNSIGNED NOT NULL AUTO_INCREMENT, ADD PRIMARY KEY (StudentPortalDataID); Query Plan and

SQL Server or MySQL for our Business Needs?

Business Need: Currently we are in the cross-roads of growing from small-mid sized company to large scale K-12 online Test Delivery and reporting Solution provider. We primarily operate on K-12 Summative Market and its absolutely critical for us  to provide 100 % accuracy

MySQL and phpMyAdmin Setup

MySQL and phpMyAdmin Setup sudo yum install mysql sudo yum install mysql-server sudo yum install mysql-devel sudo chgrp -R mysql /var/lib/mysql sudo chmod -R 770 /var/lib/mysql sudo service mysqld start sudo yum install phpmyadmin Errors: # tail -f error.log 2014/03/06

Top