Node.js agent release notesRSS

Improvements

• Removed installation of Oracle container test scripts.

• Replaced explicit config.high_security === true checks with general truthiness checks.

  The agent will now treat any truthy value in the high_security config setting as if it is enabled.

Bug fixes

• Fixed bug where agent would stop sending data to New Relic servers when a connectivity issue was encountered.
• Fixed unit test with incorrect usage of cross application tracing.

New features

• Added Neptune to the known database names.

Improvements

• Updated log messages for missing configuration files to point at the base configuration.

  Previously the log messages pointed at an internal file defining default values for every configuration.

• Upgraded to @newrelic/native-metrics v4.

• Removed outdated config files.

• Removed old, outdated examples.

Bug fixes

• Fixed an issue where old CAT headers would be injected while distributed tracing was enabled.

  This would happen if both cross_application_tracing.enabled and distributed_tracing.enabled were set to true and an instrumentation disabled tracing for an outbound request.

• Fixed access to ConglomerateShim in shimmer.

New features

• Added new shim type: ConglomerateShim

  This shim class is useful for instrumenting modules which implement several service interfaces of different types.

Improvements

• Disabled logging by default when serverless_mode is enabled. Please note serverless/lambda monitoring is not yet officially released.

• null trace attribute values are no longer sent to New Relic.

  This change brings the Node agent in alignment with the behavior of other language agents.

Notes

• Dropped support for Node versions less than 6.

• Agent no longer creates transactions when in a stopped, stopping or errored state.

• Removed public API methods that have been deprecated since Agent v2: createTracer, createWebTransaction, createBackgroundTransaction, and addCustomParameter/(s). See the Migration Guide for more information.

• Flagged API#setIgnoreTransaction as deprecated; TransactionHandle#ignore should be used instead.

• Released several feature flags. These flags are no longer used:

  • feature_flag.custom_instrumentation
  • feature_flag.custom_metrics
  • feature_flag.synthetics
  • feature_flag.native_metrics

• Added plugins.native_metrics.enabled configuration value.

  This configuration value controls the use of the @newrelic/native-metrics module. When set to false the agent will not attempt to load that module.

• Custom metrics recorded via recordMetric and incrementMetric API calls now automatically have the name prepended with 'Custom/'. Usages of these APIs that manually prepend with 'Custom/' will need to remove the manually specified one or will end up with metrics prepended with 'Custom/Custom/'.

• Dropped support for node-cassandra-cql.

• Removed from ignore_server_configuration config setting.

• Removed deprecated configuration settings capture_params and ignored_params.

• The agent will no longer cause a stack overflow when logging at trace level to stdout.

  Previously, the agent would inadvertently trigger a trace level log from its trace level log (through wrapping a nextTick call), causing a stack overflow. The agent now detects this case and aborts the nested call.

New features

• The agent now reacts to failed New Relic requests based on response code, as opposed to parsing an exception message in the response body.

Improvements

• Fixed clearing of active harvest via _stopHarvester()
• Fixed handling of harvest endpoints when not all fail.
• Added agent state "connecting" to indicate when handshake with New Relic servers is starting. This can be triggered on startup and restarts.
• Added --no-package-lock to unit and integration rules.
• Released protocol_17 feature flag.
• Replaced nsp with npm audit in security checks.
• Collector now specify application/json content-type when data is compressed instead of octet-stream.
• Bumped ecmaVersion in test .eslintrc to 8

New features

• Added IP address collection and forwarding of metadata headers for upcoming protocol 17.

  These features are currently behind the protocol_17 feature flag until all parts of protocol 17 are implemented.

Improvements

• Converted error handling in CollectorAPI and RemoteMethod to callbacks.

  Previously many of the errors were thrown. For consistency with async errors, these are now handed to the callback instead of thrown. The old behavior could result in a crash under a few circumstances, such as when the agent exceeded a configured maximum payload size. These errors came from RemoteMethod._safeRequest. Since these errors are handed to the callback instead of thrown, this bug is no longer a potential.

• Refactored harvest interactions in preparation for protocol 17 status codes.

New features

• Added protocol_17 feature flag.

  Flag will be removed and protocol will be hard-coded to 17 once functionality is released on New Relic backend.

• This release also includes changes to the agent to enable monitoring of Lambda functions. If you are interested in learning more or previewing New Relic Lambda monitoring please email lambda_preview@newrelic.com.

• Added waitForIdle option to API#shutdown.

  This new option will make the agent wait for all active transactions to finish before actually shutting down. This does not pre-empt creation of new transactions, so care must be taken to ensure the active transaction pool drains or the agent will never shut down.

Improvements

• Added switch statement indenting standard to eslintrc
• Introduced "warn" level 2 space rule to eslintrc
• Upgraded @newrelic/test-utilities to v2.

Bug fixes

• Changed totalTime attribute to be in decimal seconds instead of milliseconds for transaction events.

• Agent no longer produces spans on ignored transactions.

  Previously, the agent would produce distributed tracing span events regardless of the ignored status of the transaction the events originated from.

• Extended Restify instrumentation to mark possible transaction names in order to account for async response methods.

• Updated hapi@16 versioned tests to only run on Node 6 and above.

• Pinned mysql2 to <1.6.2 in versioned tests.

New features

• Added DatastoreShim#getDatabaseNameFromUseQuery

  This new method can be used to extract the database name from USE SQL queries.

Improvements

• Added link to CONTRIBUTING.md file in README.md

  Thanks to Yuri Tkachenko (@tamtamchik) for the contribution.

• Added VS Code settings to git ignore.

• Fixed bug preventing Distributed Tracing (DT) from fully functioning when Cross Application Tracing (CAT) was disabled.

• Renames better-cat integration test organization to be distributed-tracing and updated some test verbiage to use DT or distributed tracing instead of CAT or cross application tracing.

Bug fixes

• The agent will no longer break express routers in the case of using regex paths in a list.

  Previously, the agent would overwrite the regex with the source of the regex. The agent now makes a copy of the route array and mutates that instead.

• Attributes will now be properly propagated to PageView events.

  The agent may now be configured to pass attributes along to the browser agent. The attributes that match the include/exclude rules in the browser_monitor.attributes section will now be placed on PageView events.

New features

• Added superagent as built-in instrumentation.

  This instrumentation just maintains transaction state when using the superagent module to make HTTP requests with either callbacks or promises.

• Updated noticeError API method to be partially functional in High-security mode.

  In HSM, any custom attributes will be ignored, but the error will still be tracked. This brings the Node agent in line with the behavior of other language agents.

• Added PromiseShim class for instrumenting promise libraries.

• Support for setting transaction_tracer.transaction_threshold to 0 has been added.

Improvements

• Updated DT payload creation to use primary_application_id from connect response.
• Added protection against functions with modified prototypes in shim.applySegment.
• Replaced SQL ID hash generation algorithm with SHA1 instead of MD5 to allow usage in FIPS compliant environments.
• Leveraged 16 hex digits for creation of SQL ID.
• Upgraded ejs module to get rid of Github security warnings. The ejs module was only used for tests and not in main agent code.
• Changes DT payload configuration log messages to debug level as it is not uncommon for calls to occur before server configuration has been retrieved.
• Converted net instrumentation to use shim api.
• Converted child_process instrumentation to newer shim style.
• Converted Timers instrumentation to newer shim style.
• Converted zlib instrumentation to use shim API.

Bug fixes

• Fixed codec.decode() callback bug that would re-call a callback with an error thrown within the callback.

• Fixed bug requiring Cross Application Tracing (CAT) to be enabled for Distributed Tracing (DT) createDistributedTracePayload and acceptDistributedTracePayload APIs to function. DT configuration will no longer consider CAT configuration.

• Fixed bug in wrap() that would fail to wrap callbacks if the callback index was 0.

• The agent now respects NEW_RELIC_TRACER_THRESHOLD.

  Previously, this environment variable was stored as a string. The environment variable is now stored as a float.