Rails Performance and the root of all evil
Donald Knuth wrote an often quoted paper in the 70s which is still referenced when talking about performance in web apps today. Premature optimization is the root of all evil. In my line of work, it...
Scout Blog
Stuff we think matters
Monitoring Sidekiq Jobs
Teaser for a soon-to-be released capability: Overview metrics for all your background jobs Chart throughput, latency, error rate, and more. Detailed drill-down on slow jobs See what's making the job slow, identify N+1 queries, and more. Tech preview - want in? Background job monitoring currently supports sidekiq, and is tech ...
3 Git Productivity Hacks
Most Ruby developers use Git for their version control system of choice. Git is a wonderful tool that can save you countless hours of lost productivity and makes collaborating with others a cinch. Git's distributed nature also allows devs to work anywhere with or without an internet connection without fear ...
Java for Rubyists
The Scout Java Application Monitoring Agent is under active development and we have a few spots open in our alpha program. Email support@scoutapp.com for access. For many Rubyists, Ruby is the first language that they learn and perhaps the only programming language that they know. Ruby provides an excellent gateway ...
The Dogs of Scout
If it isn't clear from our logo, or our offer to give you a puppy if you don't love Scout more than the competition , the Scout team loves dogs. Here are some of our favorite coding buddies: Dave's...
Overhead Benchmarks: New Relic vs. Scout
High monitoring overhead is a silent killer : your app's requests take longer, throughput capacity shrinks, end users requests start stacking up in a request queue, you react by provisioning more...
Git-integrated app monitoring
Tracking down slow code is about to get a lot faster. We're excited to debut our Github Integration for Scout Application Monitoring: With the Github Integration enabled, instead of seeing backtraces for slow method calls (>= 500 ms), you'll see the relevant code in our UI. This goes beyond the ...
An intro to the Docker Stats API
If I was teaching Server Health 101, I'd start with four key metrics: CPU Usage Memory Usage Network I/O Disk Utilization The approach for fetching these metrics on Linux hosts is tried-and-true (hint: look in the /proc folder). However, I was curious about Docker Containers: where do I access these ...
Implementing Docker event monitoring from scratch
Docker's API provides a ton of functionality around containers and images - but there is a hidden secret, one that is easy to miss in the documentation: Docker's API has the capability to report host...
DevOpsDaysRox
Last week, I spent Thursday (4/23/15) and Friday (4/24/15) at DevOpsDaysRox . If you've never attended a DevOpsDays events - find your closest one here and signup now. So what makes DevOps Day special? First, you'll find an active community that prides itself on inclusion and making everyone feel welcome. ...
Monitoring Docker with docker-scout
When it comes to agent-based monitoring and Docker , you're typically choosing between two bad options: (1) install the agent and its dependencies directly on the host or (2) running an agent in...
From MySQL full-text search to Elasticsearch
Migrating backend search technologies on a high-throughput production site is no easy task, but Vector Media Group was recently faced with this decision. With a popular client site struggling under the load of complex MySQL full-text search queries, they recently switched to Elasticsearch . I spoke with Matt Weinberg to ...