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All 19 Plugins   (Ordered by Popularity)


Server Load

By Highgroove Studios (514 installs)
Monitors the load on server, generating an alert if the load over the last minute is greater than a specified amount.

Disk Usage

By Highgroove Studios (367 installs)
Monitors the amount of space remaining on a disk, generating an alert if the amount of space used exceeds a given percentage.

Memory Profiler

By Eric Lindvall (353 installs)
Returns a profile of the system's memory usage (memory used, % memory used, swap used, % swap used, etc). Requires procfs.

URL Monitoring

By Highgroove Studios (221 installs)
Monitors the availability of a URL, sending an alert if the URL is not reachable.

Process Usage

By Highgroove Studios (172 installs)
Monitors the memory usage of a process, generating an alert if it exceeds a specified threshold.

Ruby on Rails Monitoring

By Highgroove Studios (170 installs)
NEW for Scout 2.0! This plugin monitors a Ruby on Rails Application, providing deep analysis of application performance, MySQL optimization hints and breakdowns on individual actions.

Phusion Passenger Monitor

By Highgroove Studios (164 installs)
Tracks Passenger's VM size, process count, and the amount of private memory it has squirreled away. You can also elect to be emailed if any of these statistics crosses a line you indicate.

Server Uptime

By Highgroove Studios (161 installs)
Returns the length of time since the last server restart.

MySQL Slow Queries

By Forumwarz (68 installs)
Monitors for slow MySQL queries and generates an alert (containing the queries) whey they occur.

MySQL Statistics

By Eric Lindvall (44 installs)
Returns the number of each of type of query (delete, insert, update, select, and total).

Starling Monitor

By Mike Mangino (27 installs)
Monitors the number of items in a starling queue, generating an alert if the maximum queue depth is exceeded for a given queue.

Nginx monitoring

By Luc Castera (19 installs)
Monitors Nginx, reporting the total # of requests, the total number of connections, and the number of connections reading, writing, and waiting.

Monitor /proc/mdstat

By Mark Hasse (11 installs)
Monitors /proc/mdstat for disk failures.

MySQL Replication Monitor

By Mike Mangino (9 installs)
Monitors the replication for a master-slave MySQL database setup reporting the number of seconds the slave is behind the master.

Passenger Status

By Jason Lee (4 installs)
Provides metrics on Passengers internal state, including the number of application instances that are currently alive, the number of instances that are currently processing requests, and the number of idle instances.

Facebook Content Monitor

By Mike Mangino (2 installs)
A simple monitor that will login to Facebook and then fetch a given URL and make sure it contains a string. This is useful for making sure you don't get a maintenance page or an error page.

Timestamp Monitor

By Chad Woolley (1 install)
Checks the timestamp on a given file, generating an alert if the timestamp of the file is older than a given threshold.

HopToAd Unresolved Errors

By David Grandinetti (1 install)
Returns the total number of unresolved errors from a HopToAdd project.

Lighthouse Open Tickets

By David Grandinetti (0 installs)
Returns the total number of open tickets for a specific project in a Lighthouse account.

Latest Commits

Latest Comments

  • Ruby on Rails Monitoring Bryan, No special configuration is required for REE. The instrumentation generates a log file in RAILS_ROOT/log/scout_instrumentation.log - can you send this file to support@scoutapp.com? Tha...
    Jul 02 by Derek Haynes
  • MySQL Slow Queries Raphaël, By default, the agent runs plugins as the 'daemon' user (specified in /etc/scout_agent.rb). You'll want to ensure this user has permission to read your slow query log file.
    Jul 02 by Derek Haynes
  • MySQL Slow Queries Since I'm using the new scout_agent this plugin is unable to read my slow-queries file : Error: Errno::EACCES Message: Permission denied. Any advice ?
    Jul 02 by Raphaël Emourgeon
  • Ruby on Rails Monitoring I followed the install steps, but no data. Other plugins(Passenger Monitor) are working. Is there any special configuration required for REE? Thanks.
    Jun 25 by Bryan Hackett
  • Memory Profiler The graph link is incorrect for memory used. Both memory used and % memory used us the same link. I am unable to see a chart of memory used as a result. https://scoutapp.com/user/charts?d=54...
    Jun 24 by Bryan Hackett
  • Ruby on Rails Monitoring Pierre, We're not having any issues. Possible causes: * Do you have git installed on your system? Are you using a version of Rails that supports script/install via git? I know this is support...
    Jun 22 by Derek Haynes
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