Node.js agent release notesRSS

Notes

• New Relic Insights support no longer requires a feature flag. If you are a paying customer, you'll begin to see data show up in Insights as soon as you upgrade to 1.6.0. The agent will send event data for every transaction up to 10,000 per minute. After that events are statistically sampled. Event data includes transaction timing, transaction name, and any custom parameters. You can read what is sent in more detail here.

  You can read more about Insights here. Documentation for configuring this feature can be found here.

Notes

• Fix a bug where if the user disabled the error collector, error count would be carried over harvest cycles instead of reset. This would result in an ever increasing error count until the app was restarted.

• New Relic Insights beta support. This is a feature for our paying customers. The support of Insights in the agent is beta, this means we don't recommend turning the feature on in production, but instead trying it out in development and staging environments.

  To enable Insights support add the following to your newrelic.js:

  feature_flag : {
  insights: true
  }

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Notes

• On connect, the full newrelic module configuration is pushed to New Relic APM. Full config will be visible under the Agent initialization tab, under the Settings button in the APM application page.

  The reported settings will reflect the running agent config, which may differ from the newrelic.js file depending on server-side, and environmental configuration.

Notes

• Express 4 support.

  Express 4 apps now have their transactions named correctly. Errors in the middleware chain are properly recorded.

Notes

• Fix issue where dangling symbolic links in the node_modules folder would crash the environment scraper.

Notes

• Upgrade continuation-local-storage dependency to 3.0.0. The newrelic node module uses cls to help join asynchronous transaction segments. The latest cls module includes a fix that prevents contexts from leaking across transactions.

Notes

• Add high-security compliance for accounts with enterprise security enabled. By default, the agent now works with high-security accounts, whereas previously agents would receive an Access Violation.
• Add a .addCustomParameter(name, value) api call for adding custom parameters to transaction traces, and extend the .noticeError(error, customParameters) for adding additional parameters to error traces.
• Documentation fix in the README.md for ignoring socket.io routes.
• Better support for disabling browser timing headers server side. Previously the agent would not pick up the server change until restart. The agent will now disable browser timing headers as soon as the next harvest cycle.
• Fix a socket hangup error that was causing some agents to fail to handshake with the New Relic servers.

Notes

• Browser monitoring! Real User Monitoring! Which is also known as RUM! Whatever it's called, it allows you to see how long your pages take to load, not just on the server side, but in the browser! Wow! It's super cool! We know a lot of you have been waiting for this, and it's here! It's manually set up with an API call! Check the README for details!
• By default, all communication between New Relic for Node and New Relic's servers is now protected with crisp, clean TLS encryption. To minimize the CPU overhead of running connections over SSL (and it can be configured, see the README and the online documentation for details on how to return to plain HTTP), New Relic for Node is now using a keep-alive connection that will properly pipeline connections, for both HTTP and HTTPS.
• Improved the timings for a large class of MongoDB / Mongoose use cases. If you've encountered the issue where MongoDB trace segments last for an absurdly long duration, this should help.

Notes

Includes a nearly total rewrite of the connection layer that the module uses to communicate with New Relic's servers:

• More useful logs! All of the logging has been reviewed closely to maximize its value and usefulness at pretty much every level. In practice, this means that the messages logged at 'info' and higher should only be for things that are relevant to you as a customer, and at 'debug' and 'trace' should be much more useful for us when we help you isolate issues with New Relic in your applications.
• See data faster! As part of the connection handshake with New Relic, the module will now send any performance metrics gathered during the startup cycle immediately, instead of waiting a minute for the first full harvest cycle.
• Get data to New Relic more reliably! When the module has issues connecting to New Relic, it's more consistent and resilient about holding your performance data for later delivery.
• Use less bandwidth! Performance data delivery to New Relic is now sequential instead of simultaneous. This means that the bandwidth used by New Relic will be less bursty, especially on hosts running many instrumented applications (or cluster workers).
• Better implementation! There were a number of architectural problems with the old version of the connection layer, which (among other things) made it difficult to test. The new version is simpler, has a much cleaner API, and has many, many more tests.