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server monitoring

System and application metrics from all your servers.

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Beautiful graphing to help optimise server performance.

VPS /proc/user_beancounters monitoring. Please refer to http://openvz.org/Proc/user_beancounters

Version: 1.0.1

Updated: 16th Dec

Price: $0.80 / £0.50

Beanstalk queue monitoring.

Version: 1.7

Updated: 22nd Sep

Price: Free

Displays cumulative Bind9 statistics.

Version: 0.1

Updated: 2nd Aug

Price: $0.80 / £0.50

This is a simple plugin for Linux that verifies if the Server Public IPs are listed on a Email Blacklist.

Version: 1.0

Updated: 6th Aug

Price: Free

Monitors the Cherokee web server. Cherokee is a flexible, very fast, lightweight Web server.

Version: 1.0

Updated: 24th May

Price: $3.20 / £2.00

Monitors Clam Anti-Virus. Keeps an eye on threads, pools, and memory. For example, if you're running a mail server with postfix, amavis, clam, etc you might use this to keep an eye on load produced by scanning e-mail.

Version: 1.0

Updated: 24th May

Price: $3.20 / £2.00

Monitor system fans from Dell probes. Tested in Dell PowerEdge server family.

Version: 1.0

Updated: 14th Mar

Price: $0.80 / £0.50

Monitor system temperatures from Dell probes. Tested in Dell PowerEdge server family.

Version: 1.0

Updated: 14th Mar

Price: $0.80 / £0.50

Monitor info like Memory usage of all dotcloud services under one account.

Version: 0.1

Updated: 15th May

Price: Free

Monitors ElasticSearch nodes and indices.

Version: 1.1

Updated: 12th Sep

Price: Free

Monitors any Windows event log.

Version: 1.0

Updated: 14th Dec

Price: $3.20 / £2.00

Monitor your Microsoft Exchange installation, versions 2003 – 2010.

Version: 1.0

Updated: 25th Jan

Price: $3.20 / £2.00

Access your facts from facter, puppet and puppet modules

Version: 1.0.0

Updated: 26th May

Price: $0.80 / £0.50

This plugin reports Free Memory on a server taking into account Caching/Buffers

Version: 1.1

Updated: 21st Jan

Price: Free

Freeradius stats using the Freeradius Status Server

Version: 0.1

Updated: 11th Nov

Price: Free

Monitor Gearman queue size, workers and running jobs

Version: 1.0.1

Updated: 13th Feb

Price: $0.80 / £0.50

This plugin reads data from HAProxy and sends it down to Server Density

Version: 1.0

Updated: 7th Jun

Price: Free

Monitor all server totals for an HAProxy load balancing server. Gathers aggregates for all frontends and backends, including stats pages.

Version: v0.1.0

Updated: 17th Feb

Price: Free

Unlimited HTTP URL and TCP port monitoring for any number of services. Install on a single Windows server and alarm multiple local and remote services (Linux, Windows, ...).

Version: 1.0

Updated: 31st May

Price: $3.20 / £2.00

HipacheBackends plugin monitors dead backends in Hipache environment (https://github.com/dotcloud/hipache).

Version: 3.0

Updated: 12th Jul

Price: Free

Plugin to monitor the ping, maximum allowed players and current number of players on a Valve Dedicated Server (TF2, CS:S, HL2).

Version: 1.0.0

Updated: 29th Aug

Price: Free

Monitors IIS (Internet Information Server). Checks number of requests, unique visitors, response time and a lot more.

Version: 1.0

Updated: 1st Aug

Price: $3.20 / £2.00

Reports back all the output from "df -i". By default it reports only filesystems with a "Filesystem" value that isn't "none", as reported by "df -i".

Version: 1.0

Updated: 19th Mar

Price: Free

Reports JVM memory use, threads, and garbage collection performance

Version: 1.2

Updated: 11th May

Price: $0.80 / £0.50

This plugin reports in seconds the time since chef completed its last good run.

Version: 1.1

Updated: 10th Feb

Price: Free

Gather statistics from the lighttpd server-status page.

Version: 1.0

Updated: 17th Apr

Price: Free

Server Density monitoring plugin for monitoring NFS v3 servers on Linux.

Version: 1.0.0

Updated: 5th Nov

Price: $1.60 / £1.00

Comprehensive Load Average for Linux servers. Instead of cryptic load average based multiple CPUs, this plugin provides a simple view between 0 and 1. Additionally this plugin provides a rate of change which efficiently shows blips in the CPU usage. This could predict over-usage and strange behaviour

Version: 1.0.0

Updated: 10th Jan

Price: $0.80 / £0.50

Mail Queue Size plugin displays number and weight of email messages that have not been delivered yet. You can monitor whether your MTA is working fine or not.

Version: 1.0

Updated: 24th May

Price: $0.80 / £0.50

Mail Queue Size for Exim plugin displays number of email messagesin the queue that have not been delivered yet by exim. You can monitor whether your EXIM MTA is working fine or not.

Version: 1.0.1

Updated: 16th Dec

Price: $0.80 / £0.50

Plugin allow to monitor status of Linux software RAID (mdraid). It checks status of all raid devices and report if at least one is degraded or having some issue. It detect overall number of mdraid arrays configured in OS and display number of mdraid arrays in [OK] state and having an issue/degraded [ERROR].

Version: 1.0.1

Updated: 16th Dec

Price: $0.80 / £0.50

A simple, clean Memcached monitor that generates reports for cache hits/misses, storage count, cache i/o, open connections, network traffic and uptime. No mess, no fuss.

Version: 1.0

Updated: 6th Apr

Price: $0.80 / £0.50

Monitor, graph and alert on several calculated Memcached metrics including but not limited to hit/miss ratios, get command rate, ratio of allocated memory used. Includes all the info required to know if your setup can handle what your app is throwing at it and what to do if it can't.

Version: 2.2

Updated: 1st Jun

Price: $1.60 / £1.00

Monitors and graphs the key metrics for a host running a Memcached server. Not only will it provide the cumulative statistics commonly retrieved from the "stat" command, but it also provides the rates of change for most metrics, so you can see (and alert on) the actual activity occurring on the server.

Version: 2.1.1

Updated: 9th Dec

Price: Free

MySQL Pro fills every gap left by the native MySQL monitoring including robust slave tracking and replica data verification. Counter metrics are tracked over time to produce per second rate metrics.

Version: 2.1

Updated: 3rd Apr

Price: $3.20 / £2.00

Provides monitoring of MySQL servers via the Windows SD agent. Includes queries per second, slave monitoring, and other standard metrics provided by the Linux based SD agent.

Version: 1.0

Updated: 31st May

Price: $0.80 / £0.50

MySQLReplication plugin is useful for the monitoring of MySQL databases which use Master-Slave (or Master-Master) replication.

Version: 0.3

Updated: 12th Dec

Price: Free

Monitors service status of installed NServiceBus services

Version: 0.1

Updated: 12th Nov

Price: $1.60 / £1.00

If you are already using Nagios and want to move to Server Density, you may not want to rewrite all your Nagios plugins. This sd-agent plugin will execute your Nagios plugins, then report the data back to Server Density.

Version: 1.0

Updated: 28th Aug

Price: Free

Counts network connections and their statuses. Also counts connections used on a per-process basis.

Version: 0.1

Updated: 6th Feb

Price: Free

Turn stats from the PHP-FPM status page into keys you can graph in Server Density.

Version: 1.0

Updated: 25th Aug

Price: Free

Get status of PHP-FPM using cgi-fcgi. This means you do need to have a web server running in order to get the status page.

Version: 1

Updated: 23rd Nov

Price: Free

Passenger (aka mod_rails) monitoring plugin. Uses the passenger-status and passenger-memory-stats commands provided by the passenger gem. This plugin was developed on behalf of Assistly (http://www.assistly.com) who have kindly agreed to release it to the community for free use.

Version: 1.0

Updated: 24th May

Price: Free

PostgreSQL monitoring services

Version: 0.2

Updated: 13th Sep

Price: $0.80 / £0.50

This plugin shows a list of users that have been connected to your database as well as how far behind (in seconds) a slave server can be. It also indicates if the currently monitored server is the master or the replication slave.

Version: 0.9

Updated: 8th Feb

Price: $0.80 / £0.50

Monitors one or more specific (defined by you) Windows processes and checks CPU, memory and threads etc.

Version: 1.0

Updated: 3rd Aug

Price: $0.80 / £0.50

Allows you to check the ping times from devices connected to the same network as your server. Ideal for monitoring internal network performance.

Version: 1.0

Updated: 15th Feb

Price: $0.80 / £0.50

Shows the real memory usage in MB for Linux systems. It's based on the adjusted "-/+ buffers/cache" row from "free" command.

Version: 1.0

Updated: 14th Mar

Price: $0.80 / £0.50

Monitors redis connections, memory, and channels. Uses redis-cli. This plugin was developed on behalf of Assistly (http://www.assistly.com) who have kindly agreed to release it to the community for free use.

Version: 1.0

Updated: 24th May

Price: Free

The Redis plugin monitors the status of the redis database. It is using the redis python library to return the a dictionary with all the available info regarding the redis functionality. The user can monitor the values of the info he is interested into. In the case that redis is not reachable it will return a dictionary with the running value set to 0 and log the error.

Version: 0.1

Updated: 10th Jul

Price: Free

Server Density Plugin for Resque. This plugin gives you insight into key metrics such as total pending items across all queues, total processed, total failed and individual pending items for each queue.

Version: 0.1

Updated: 8th Aug

Price: Free

The plugin fetches the average query time from Sphinx. Sphinx is a free software search engine.

Version: 1.0

Updated: 25th May

Price: Free

Writing a custom SQL query makes it possible gather data from any database/table and pass the result directly into Server Density to maintain history and add alerts.

Version: 1.0

Updated: 4th Aug

Price: $0.80 / £0.50

This plugin does a little more in depth monitoring of your SQL Server installation by performing queries against some system tables. Please let me know your feedback for additional things you would like monitored and I will happily add them.

Version: 1.0

Updated: 19th Jun

Price: Free

Retrieves a number of properties and averages relevant to the availability and performance of MSSQL replication

Version: 1.1

Updated: 25th Jul

Price: $3.20 / £2.00

Monitor the state of Supervisord-managed processes

Version: 1.0.0

Updated: 26th May

Price: Free

SupervisordCheck plugin checks if the supervisord is running.

Version: 0.1

Updated: 14th Dec

Price: Free

A plugin to monitor memory usage for Supervisord managed processes

Version: 1

Updated: 21st Dec

Price: Free

monitors ping times to processes managed by Supervisord

Version: 1

Updated: 21st Dec

Price: Free

Check whether the local Thrift server (on port 9090) is running on not.

Version: 1.0.0

Updated: 25th Sep

Price: Free

Tomcat Health monitor shows vital signs about running tomcat server. All the details that you may have missed out on. Memory usage, Thread counts, Network Traffic. The plugin requires setting up of manager-status role in tomcat-users.xml.

Version: 1.0.0

Updated: 12th Jan

Price: $1.60 / £1.00

Get the number of pending updates and security updates

Version: 0.1

Updated: 23rd Oct

Price: Free

Graph/monitor total uptime for all of your Windows servers

Version: 0.1

Updated: 13th Nov

Price: $0.80 / £0.50

Monitors number of users logged in into the server.

Version: 1.0.0

Updated: 18th Dec

Price: Free

Basic plugin to monitor varnish stats via the varnishstat command.

Version: 1.0

Updated: 24th May

Price: Free

Varnish plugin for Server Density monitoring agent. With this plugin you can easily monitor cache hits & misses, cache hit ratio, uptime etc.

Version: 1.1

Updated: 23rd Jun

Price: Free

WebCheck will check a website and scan for a specific string to see if the page is working properly.

Version: 1.0

Updated: 11th Aug

Price: Free

This plugin will use Microsoft Update servers to look for any pending updates. The number of pending updates and total updates will be published and an alert can be added when pending updates are greater than zero to get a notification on when a server needs them applied.

Version: 1.0.0

Updated: 24th May

Price: Free

This is a quite simple node.js plugin.

Version: 1.0

Updated: 28th Nov

Price: Free

Monitoring plugin for the WSGI/PSGI/etc. application sever uWSGI.

Version: 1.0.2

Updated: 2nd Oct

Price: Free

Public Plugins
Install a variety of 3rd party community plugins.
Optionally release your own plugins to help others.
Server Monitoring Overview
Your default server overview screen. Identify the metrics that matter, without the need for configuration.
Custom server monitoring dashboards
Compare metrics across multiple servers and design the graphs you need for troubleshooting.
API
HTTP JSON API - easy access from any language
Browse API docs
Hosted Monitoring
Link your server metrics to website performance
See our website monitoring