Ddtrace

Bug Fixes

- Fix Pyramid caller_package level issue which resulted in crashes when starting Pyramid applications. Level now left at default (2).

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Upgrade Notes

- Instead of using error constants from `ddtrace.ext.errors`. Use constants from `ddtrace.constants` module. For example: `ddtrace.ext.errors.ERROR_MSG` -\> `ddtrace.constants.ERROR_MSG`
- Instead of using priority constants from `ddtrace.ext.priority`. Use constants from `ddtrace.constants` module. For Example:: `ddtrace.ext.priority.AUTO_KEEP` -\> `ddtrace.constants.AUTO_KEEP`
- Instead of using system constants from `ddtrace.ext.system`. Use constants from `ddtrace.constants` module. For Example:: `ddtrace.ext.system.PID` -\> `ddtrace.constants.PID`

Deprecation Notes

- Deprecate DATADOG_TRACE_AGENT_HOSTNAME, DATADOG_TRACE_AGENT_PORT, DATADOG_PRIORITY_SAMPLING, DATADOG_PATCH_MODULES in favor of their DD equivalents.

\[Deprecated environment variable\] \| \[Recommended environment variable\]

- For `DATADOG_TRACE_AGENT_HOSTNAME`, use `DD_AGENT_HOST`
- For `DATADOG_TRACE_AGENT_PORT` use `DD_AGENT_PORT`
- For `DATADOG_PRIORITY_SAMPLING`, [follow ingestion controls](https://docs.datadoghq.com/tracing/trace_retention_and_ingestion/#recommended-setting-the-global-ingestion-rate-to-100)
- For `DATADOG_PATCH_MODULES`, use `DD_PATCH_MODULES`

- Moved `ddtrace.ext.errors` constants into the `ddtrace.constants` module. `ddtrace.ext.errors` will be removed in v1.0. Shorthand error constant (MSG,TYPE,STACK) in `ddtrace.ext.errors` will be removed in v1.0. Function `get_traceback()` in ddtrace.ext.errors is now deprecated and will be removed v1.0.

- Moved `ddtrace.ext.priority` constants into `ddtrace.constants` module.

- Moved `ddtrace.ext.system` constants into `ddtrace.constants` module.

New Features

- Add aredis support \>= 1.1.0
- Add automatic unix domain socket detection for Dogstatsd. The expected path for the socket is `/var/run/datadog/dsd.socket` which if exists, will be used instead of the previous UDP default, `udp://localhost:8125/`. To be used in conjunction with `dogstatsd_socket` in your `datadog.yaml` file, or the `DD_DOGSTATSD_SOCKET` environment variable set on the Datadog agent.
- Add new `DD_TRACE_SAMPLING_RULES` environment variable to override default sampling rules. For Example:: `DD_TRACE_SAMPLING_RULES='[{"sample_rate":0.5,"service":"my-service"}]'`
- Add support for [snowflake-connector-python](https://pypi.org/project/snowflake-connector-python/) \>= 2.0.0. Note that this integration is in beta and is not enabled by default. See the snowflake integration documentation for how to enable.
- Only for CI Visibility (`pytest` integration): include `pytest` version as a tag in the test span.
- Added official support for Python 3.10
- Only for CI Visibility (`pytest` integration): Extract stage and job name from environment data in Azure Pipelines.

Bug Fixes

- Fixes an issue where all Django function middleware will share the same resource name.
- Fixed an issue with gevent worker processes that caused them to crash and stop.
- Fixes exceptions raised when logging during tracer initialization when `DD_LOGS_INJECTION` is enabled.
- The `ddtrace.utils.wrappers.unwrap` function now raises an error if trying to unwrap a non-wrapped object.
- Only for CI Visibility (`pytest` integration): Fix extraction of branch in GitLab CI.

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Bug Fixes

- Fixed an issue with gevent worker processes that caused them to crash and stop.
- Fixes exceptions raised when logging during tracer initialization when `DD_LOGS_INJECTION` is enabled.

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Deprecation Notes

- Deprecate the DATADOG_ENV environment variable in favor of DD_ENV. The use of DD_ENV should follow [Unified Service Tagging](https://docs.datadoghq.com/getting_started/tagging/unified_service_tagging) recommendations.

New Features

- Add automatic unix domain socket detection for traces. The expected path for the socket is `/var/run/datadog/apm.socket` which if exists, will be used instead of the previous http default, `http://localhost:8126/`. To be used in conjunction with `apm_config.receiver_socket` in your `datadog.yaml` file, or the `DD_APM_RECEIVER_SOCKET` environment variable set on the Datadog agent.
- Update the --info command to be easier to read and provide more helpful information.
- Add support for `DD_PROFILING_ENDPOINT_COLLECTION_ENABLED` env variable to disable endpoint name collection in profiler.
- Add rq integration.
- Tag traces with HTTP headers specified on the `DD_TRACE_HEADER_TAGS` environment variable. Value must be either comma or space separated. e.g. `Host:http.host,User-Agent,http.user_agent` or `referer:http.referer Content-Type:http.content_type`.

Bug Fixes

- pytest: report exception details directly instead of through a <span class="title-ref">RuntimeWarning</span> exception.
- Fixed the support for Celery workers that fork sub-processes with Python 3.6 and earlier versions.
- Fix the reporting of the allocated memory and the number of allocations in the profiler.
- Fixes cases in which the `test.status` tag of a test span from `pytest` would be missing because `pytest_runtest_makereport` hook is not run, like when `pytest` has an internal error.
- Pin `protobuf` version to `<3.18` for Python \<=3.5 due to support being dropped.
- Make sure that correct endpoint name collected for profiling.

Other Changes

- Added runtime metrics status and sampling rules to start-up logs.

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Bug Fixes

- Fixes an issue where all Django function middleware will share the same resource name.

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Bug Fixes

- Fix the reporting of the allocated memory and the number of allocations in the profiler.

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