Scout Blog
You try creating a file on a server and see this error message: No space left on device ...but you've got plenty of space: df Filesystem 1K-blocks Used Available Use% Mounted on /dev/xvda1 10321208 3159012 6637908 33% / Who is the invisible monster chewing up all of your space? Why, ...
During a team camp among the lofty peaks of Breckenridge, Colorado, we talked a lot about the future of Scout and monitoring in general. Big mountains and nature have a way of doing that. One thing that was getting our nerd juices flowing: Go . At Monitorima in May, it ...
Your high-powered server is suddenly running dog slow, and you need to remember the troubleshooting steps again. Bookmark this page for a ready reminder the next time you need to diagnose a slow...
A big thanks to Eric Lindvall of Papertrail for adding steal time to Scout's CPU Usage Plugin and helping out on this blog post! Netflix tracks CPU Steal Time closely. In fact, if steal time exceeds their chosen threshold, they shut down the virtual machine and restart on a different ...
On Jan 15th, all Scout accounts will be switched over to notification groups. Notification groups are designed to make notifiation management easier and more flexible: instead of managing notifications per-plugin/per-user, you will assign users to notification groups, and apply notification groups to triggers. you can have multiple PagerDuty integrations and ...
We’ve added prolific plugin contributor Eric Lindvall ’s latest plugins to Scout: Kestrel Overall and Kestrel Queue Monitoring . Kestrel is a simple message queue built from production needs at Twitter. Being the gentleman he is, Eric shared his experiences with Kestrel at Papertrail , a hosted log aggregation service. ...
First, Tina Fey needs to write more. Both of her New Yorker articles have been terrific. Second, her latest New Yorker piece had a great nugget on how producing is about discouraging creativity: You may have an occasion where the script calls for a bran muffin on a white plate, ...
It takes longer to access data stored on your hard disk vs. RAM. But how big is the difference? It's really big.
John P. Wood of Signal , which offers a mobile customer engagement platform used by many top brands, recently created a couple of Scout Plugins for monitoring CouchDB . I’ve always been impressed by the team at Signal, so I was curious how they were using CouchDB in production. It ...
Photo by mollypop My how you’ve grown! A couple of years ago your little Rails app was on a single server. Now you’re on a whole cluster – you’ve got web servers, database servers, HAProxy servers, and more. I’m so proud of you! Monitoring your Rails cluster has gotten more ...
Understanding free memory on Linux servers and why it is easy to misread memory usage.
If you’ve used Major Hayden’s MySQLTuner before, you know it’s a great source of MySQL optimization tips. Now you can get MySQLTuner reports automatically delivered through Scout. All you need to do is install the MySQL Stats w/MySQLTuner plugin , or update the plugin if you already have it installed. ...