Python agent release notesRSS

Notes

This release of the Python agent adds support for Aredis, upgrades to the AWS metadata endpoint to IMDSv2, and fixes attribute errors with the garbage collector sampler.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

New features

• Add support for Aredis The agent will now automatically instrument and send metrics for applications using the StrictRedis client from Aredis.

Changes

• Upgrades to the AWS Metadata Endpoint Upgrades the AWS metadata endpoint to IMDSv2.

Bug fixes

• Fix Garbage Collection Sampler Attribute Errors A crash caused by an attribute error on the garbage collector sampler has been fixed.

• Safeguards Against Lost Data with Infinite Tracing Fixed race condition between agent and gRPC that resulted in loss of data on agent reconnect.

Notes

This release of the Python agent adds support for Django v4, Redis v4, GraphQL v3.2, as well as fixes to the memory sample exception, Graphene framework, and import hook warnings for Python 3.10.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

New features

• Add support for Django v4 The agent will now automatically instrument and send metrics for applications using Django v4.

• Add support for Redis v4 The agent will now automatically instrument and send metrics for applications using Redis v4.

• Add support for graphql-core v3.2.0 The agent will support the latest version of GraphQL.

Changes

• Fix Graphene framework details Data on graphene framework details was missing on newer versions, this has been fixed.

Bug fixes

• Fix memory sample exception This fixes the crash in memory sampler on non-supported systems.

• Fix import hook warnings for Python 3.10 An ImportWarning that was emitted when importing the agent in Python 3.10 has been corrected.

Notes

This release of the Python agent fixes an issue with infinite tracing's usage of gRPC allowing subchannels to retry, and fixes failing database traces.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

Bug Fixes

• Fix gRPC retry logic

  Previously gRPC subchannels left open by infinite tracing could cause network congestion and strain our trace observers. This issue has been corrected. As such, specific versions of gRPC are no longer required.

• Fix crash in database trace

  A crash in database traces resulting from nullified settings (seen rarely in Django) has been corrected.

Notes

This release of the Python agent fixes an issue with FastAPI instrumentation, as well as restricts gRPC to compatible versions.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

Bug Fixes

• Fix FastAPI context propagation error

  A runtime instrumentation error stemming from context propagation in FastAPI has been fixed.

• Fix gRPC incompatibilities

  The version of gRPC has been pinned until compatiblity can be ensured with newer versions.

  gRPC recently enabled retries by default on channel connections, potentially causing a storm of requests and open threads to starve the host of resources, as well as strain our trace observers. This pin should alleviate these issues until retries can be properly configured.

Notes

This release of the Python agent fixes an issue with urllib recursion as well as an import error caused by non-ASCII characters in comments

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

Bug Fixes

• Fix urllib3 recursion regression

  Urllib3 recursion regression issue that was seen in Gevent has been fixed

• Fix import error caused by non-ASCII character in comments

  An import error caused by non-ASCII characters has been fixed to the correct quotation formatting

Notes

This release of the Python agent adds a patch to correctly build wheels for Python 3.10.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

Bug Fixes

• Fix wheels for Python 3.10

  An incorrect version of cibuildwheel failed to create Python 3.10 wheels. This has been fixed and wheels should now be available.

Notes

This release of the Python agent adds supported builds for Python 3.10 and fixes bugs.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

New Features

• Add Python 3.10 wheels

  Wheels for Python 3.10 are now available and supported.

Changes

• Upgrade internal urllib3 to v1.26.7

  The internal copy of urllib3 has been upgraded to v1.26.7 to address Python 3.10 issues and deprecation warnings.

Bug Fixes

• Ensure errors are ignored by server-side config

  Previously it was possible on transaction exit to have an error fail to be ignored when the settings were supplied via server-side config. This has been fixed.

• Deprecation warnings for imp module removed

  The imp module has been deprecated for some time, and has been issuing warnings. This module has been replaced with importlib when available.

  Older versions of Python may still require the use of imp, but no deprecation warnings should be emitted.

Notes

This release of the Python agent enables Distributed Tracing by default, deprecates Cross Application Tracing.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

New Features

• Reservoir sizes now configurable using settings and environment variables

  Reservoir sizes for span events, transaction events, error events, and custom events are now configurable via environment variables. These reservoirs limit both the maximum number of events that can be sent as well as local memory usage.

  The agent reservoir can be expanded to accommodate more spans in case more traces are needed or there are dropped spans. The default setting for event_harvest_config.harvest_limits.span_event_data has been increased from 1000 to 2000 for better performance. This variable can be increased up to a size of 10,000.

  These settings previously existed via config file but were undocumented. For details, see the new documentation.

Deprecations

• Cross Application Tracing is now deprecated, and disabled by default

  Distributed Tracing is replacing Cross Application Tracing as the default means of tracing between services. Cross Application Tracing will soon be removed entirely with a future release.

  The default setting for cross_application_tracer.enabled is now False, disabling Cross Application Tracing.

  To continue using it temporarily while transitioning to Distributed Tracing, enable it with cross_application_tracer.enabled = True and distributed_tracing.enabled = False.

Changes

• Distributed Tracing is enabled by default

  The default setting for distributed_tracing.enabled is now True, enabling Distributed Tracing by default.

  To disable Distributed Tracing, please set the distributed_tracing.enabled setting to False.

Notes

This release of the Python agent adds new instrumentation for the GraphQL frameworks Strawberry and Ariadne, updates to Graphene and Starlette GraphQL instrumentation, a change to logging configuration, and includes bug fixes.

Install the agent using easy_install/pip/distribute via the Python Package Index or download it directly from the New Relic download site.

New Features

• Add new instrumentation for Strawberry

  GraphQL applications built using Strawberry will now be automatically instrumented.

• Add new instrumentation for Ariadne

  GraphQL applications built using Ariadne will now be automatically instrumented.

Improvements

• Add new and changed metrics for Graphene applications

  Metrics specifying the framework details for Graphene have been added, and GraphQL metrics now include Graphene as a product field.

  (eg. GraphQL/operation/Graphene/query/<query_name>/<query_path>)

• Improve tracing in Starlette GraphQL applications

  GraphQL applications using Starlette now support all executor classes. Previously, only async executor classes were supported.

Changes

• New Relic agent logs no longer propagate to the root logger by default

  Previously, logs using the logging module sent to the newrelic logger would propagate to the root logger, potentially causing duplicate logs to appear or be sent to New Relic. This has been changed to no longer propagate to the root logger by default.

  To reverse this behavior, in your application you can run logging.getLogger("newrelic").propagate = True at any point after initializing the agent. If you use the newrelic-admin wrapper, this can be done at any time inside your application.

Bug Fixes

• TimeTrace.str recursion

  A case of infinite recursion with TimeTrace.__str__ has been corrected in this release. Calling str(), repr() or print() on a TimeTrace object or subclass instance will now display helpful debugging information about it.