Database

Go’s Connection Pool, Retries, and Timeouts

01/19/15 This is a story of intermittent 500 Internal Server errors from APIs, that ended up being caused by a hardcoded constant in Go’s database/sql package. I’ll mostly spare yo…

Monitor MySQL Database Users with VividCortex

01/08/15 VividCortex now supports per-user metrics in Top Queries, so you can monitor MySQL database user activity in detail. By changing the Rank menu from Queries to Users you ca…

New reCaptcha support in angular-recaptcha

12/23/14 Google released a new reCaptcha that is “tough on bots, easy on humans.” It is really simple to use, and it has greatly improved the security against robots and other hack…

Find Queries That Lack Indexes

12/17/14 It’s an ancient tradition amongst MySQL DBAs to analyze slow query log files and sort the results by the so-called “index ratio” to find badly indexed queries. The “index …

In Case You Missed It – Building a Time-Series Database in MySQL

12/16/14 In this webinar, Baron Schwartz explains how VividCortex has used MySQL to support a large-scale, high-velocity time-series database in the AWS cloud. If you did not have …

MySQL Error Codes Out Of Context

12/11/14 In the wrong context, almost anything can be funny, and MySQL’s error codes are no exception. A few weeks ago, things got a little loopy as we discovered some definitions …

Why Data Performance Monitor is Cheaper Than DIY Open-Source

12/04/14 Talk to someone who runs monitoring systems at a company with more than a few servers and you’ll quickly find out that scaling their monitoring systems is far from a minor…

Running SolarWinds Database Performance Monitor Via An HTTP Proxy

12/01/14 Many of SolarWinds® Database Performance Monitor’s customers have strict policies about Internet access from and to their database servers. As a longtime consultant who wo…

How Exponentially Weighted Moving Averages Work

11/25/14 We use exponentially weighted moving averages (EWMAs) quite a bit in a few algorithms. They’re one of the tricks everyone should have in their toolbox for cheaply approxim…

Analyzing Prepared Statement Performance

11/19/14 Optimizing MySQL performance requires the ability to inspect production query traffic. If you’re not seeing your application’s production workload, you’re missing a vital …

SolarWinds Database Performance Monitor Now Supports Amazon RDS For MySQL

11/12/14 We are excited to announce that we now support monitoring Amazon RDS for MySQL. Previously we relied exclusively on deep packet inspection, but since customers can’t insta…

Inside Distributed Architectures: RT In-Flight Requests And Blockers

11/06/14 SolarWinds® Database Performance Monitor’s (DPM) SaaS backend is a service-oriented architecture, which means that in addition to our external APIs that our agents and web…