Notes:
= New Relic RPM
* http://www.newrelic.com
New Relic RPM is a Ruby performance management system, developed by New Relic, Inc.
RPM provides you with deep information about the performance of your Ruby on Rails
or Merb application as it runs in production. The New Relic Agent is distributed as
a either a Rails plugin or a Gem, both hosted on RubyForge.
The New Relic Agent runs in one of two modes:
* Developer Mode : Adds a web interface mapped to /newrelic to your application for
showing detailed performance metrics on a page by page basis.
* Production Mode : Low overhead instrumentation that captures detailed information
on your application running in production and transmits them to rpm.newrelic.com
where you can monitor them in real time.
=== DEVELOPER MODE
Developer mode is on by default when you run your application in the development
environment (but not when it runs in other environments.) When running in
developer mode, RPM will track the performance of every http request serviced
by your application, and store in memory this information for the last 100 http
transactions.
When running in Developer Mode, the RPM will also add a few pages to
your application that allow you to analyze this performance information. (Don't
worry - those pages are not added to your application's routes when you run in
production mode.)
To view this performance information, including detailed SQL statement analysis,
open '/newrelic' in your web application. For instance if you are running
mongrel or thin on port 3000, enter the following into your browser:
http://localhost:3000/newrelic
=== PRODUCTION MODE
To monitor your applications in production, create an account at
http://newrelic.com/get-RPM.html
When your application runs in the production environment, the New Relic agent
runs in production mode. It connects to the New Relic RPM service and sends deep
performance data to the RPM service for your analysis. To view this data, login
to http://rpm.newrelic.com.
NOTE: You must have a valid account and license key to view this data online.
When you sign up for an account at www.newrelic.com, you will be provided with a
license key, as well as a default configuration file for New Relic RPM. You can
either paste your license key into your existing configuration file,
config/newrelic.yml, or you can replace that config file with the one included in
your welcome email.
== REQUIREMENTS:
Ruby 1.8.6
Rails 1.2.6 or above
Merb 1.0 or above
== RAILS PLUG-IN INSTALL:
script/plugin install http://newrelic.rubyforge.net/svn/newrelic_rpm
== GEM INSTALL:
sudo gem install newrelic_rpm
For Rails, edit environment.rb and add to the initalizer block:
config.gem "newrelic_rpm"
The Developer Mode is unavailable when using the gem on Rails versions prior to 2.0.
== MERB SUPPORT:
To monitor a merb app install the newrelic_rpm gem and add <code>dependency 'newrelic_rpm'</code>
to your init.rb file.
Developer Mode not currently available in merb.
== SUPPORT:
Reach out to us - and to fellow RPM users - on our support forum at
http://getsatisfaction.com/newrelic. We’ll share tips and tricks, answer all your
questions, and announce product updates. Operators are standing by.
For other support channels, see http://www.newrelic.com/support.
Thank you, and may your application scale to infinity plus one.
Lew Cirne, Founder and CEO
New Relic, Inc.
Changes:
2009-02-17 version 2.8.4
* fix bug detecting Phusion Passenger v 2.1.0
* fix bug in capistrano recipe causing cap commands to fail with error
about not finding Version class
2009-02-10 version 2.8.3
* refactor unit tests so they will run in a generic rails environment
* require classes in advance to avoid autoloading. this is to address
incompatibilities with desert as well as more flexibility in gem
initialization
* fixed newrelic_helper.rb 1.9 incompatibility
2009-02-07 version 2.8.2
* fix Ruby 1.9 syntax compatibility errors
* update the class loading sanity check, will notify server of errors
* fix agent output on script and rake task execution
2009-01-27 version 2.8.1
* Convert the deployment information upload script to an executable
and put in the bin directory. When installed as a gem this command
is symlinked to /usr/bin. Usage: newrelic_cmd deployments --help
* Fix issue invoking api when host is not set in newrelic.yml
* Fix deployments api so it will work from a gem
* Fix thin incompatibility in developer mode
2008-12-18 version 2.8.0
* add beta of api in new_relic_api.rb
* instrumented dynamic finders in ActiveRecord
* preliminary support for capturing deployment information via capistrano
* change memory sampler for solaris to use /usr/bin/ps
* allow ERB in newrelic.yml file
* merged support for merb into this version
* fix incompatibility in the developer mode with the safe_erb plugin
* fix module namespace issue causing an error accessing NewRelic::Instrumentation modules
* fix issue where the agent sometimes failed to start up if there was a transient network problem
* fix IgnoreSilentlyException message
2008-12-09 version 2.7.4
* fix error when trying to serialize some kinds of Enumerable objects
* added extra debug logging
* added app_name to app mapping
2008-11-26 version 2.7.3
* fix compatibility issue with 1.8.5 causing error with Dir.glob
2008-11-24 version 2.7.2
* fix problem with passenger edge not being a detected environment
2008-11-22 verison 2.7.1
* fix problem with skipped dispatcher instrumentation
2008-11-23 version 2.7.0
* Repackage to support both plugin and Gem installation
* Support passenger/litespeed/jruby application naming
* Update method for calculating dispatcher queue time
* Show stack traces in RPM Transaction Traces
* Capture error source for TemplateErrors
* Clean up error stack traces.
* Support query plans from postgres
* Performance tuning
* bugfixes
2008-10-06 version 2.5.3
* fix error in transaction tracing causing traces not to show up
2008-09-30 version 2.5.2
* fixes for postgres explain plan support
2008-09-09 version 2.5.1
* bugfixes
2008-08-29 version 2.5.0
* add agent support for rpm 1.1 features
* Fix regression error with thin support
2008-08-27 version 2.4.3
* added 'newrelic_ignore' controller class method with :except and :only options for finer grained control
over the blocking of instrumentation in controllers.
* bugfixes
2008-07-31 version 2.4.2
* error reporting in early access
2008-07-30 version 2.4.1
* bugfix: initializing developer mode
2008-07-29 version 2.4.0
* Beta support for LiteSpeed and Passenger
2008-07-28 version 2.3.7
* bugfixes
2008-07-28 version 2.3.6
* bugfixes
2008-07-17 version 2.3.5
* bugfixes: pie chart data, rails 1.1 compability
2008-07-11 version 2.3.4
* bugfix
2008-07-10 version 2.3.3
* bugfix for non-mysql databases
2008-07-07 version 2.3.2
* bugfixes
* Add enhancement for Transaction Traces early access feature
2008-06-26 version 2.3.1
* bugfixes
2008-06-26 version 2.3.0
+ Add support for Transaction Traces early access feature
2008-06-13 version 2.2.2
* bugfixes
2008-06-10 version 2.2.1
+ Add rails 2.1 support for Developer Mode
+ Changes to memory sampler: Add support for JRuby and fix Solaris support.
* Stop catching exceptions and start catching StandardError; other exception cleanup
* Add protective exception catching to the stats engine
* Improved support for thin domain sockets
* Support JRuby environments
2008-05-22 version 2.1.6
* bugfixes
2008-05-22 version 2.1.5
* bugfixes
2008-05-14 version 2.1.4
* bugfixes
2008-05-13 version 2.1.3
* bugfixes
2008-05-08 version 2.1.2
* bugfixes
2008-05-07 version 2.1.1
* bugfixes
2008-04-25 version 2.1.0
* release for private beta
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