Release Notes¶
v0.56.0rc7¶
Bug Fixes¶
The thread safety of the custom buffered encoder was fixed in order to eliminate a potential cause of decoding errors of trace payloads (missing trace data) in the agent.
v0.56.0rc6¶
Bug Fixes¶
Fix handling of Python exceptions during trace encoding. The tracer will no longer silently fail to encode invalid span data and instead log an exception.
v0.56.0rc5¶
Bug Fixes¶
Configure a writer thread in a child process after forking based on writer configuration from its parent process.
v0.56.0rc3¶
New Features¶
Profiling now supports tracing greenlets with gevent version prior to 1.3.
The heap profiler is now enabled by default.
Add yaaredis ≥ 2.0.0 support.
Deprecation Notes¶
The
ddtrace.utils
module and all of its submodules have been copied over intoddtrace.internal
in an effort to internalize these modules. Their public counterparts will be removed entirely in version 1.0.0.
Bug Fixes¶
Allow the elasticsearch service name to be overridden using the integration config or the DD_SERVICE_MAPPING environment variable.
Fixes parsing of
botocore
env variables to ensure they are parsed as booleans.
Ensure tornado spans are marked as an error if the response status code is 500 <= x < 600.
v0.56.0rc2¶
Bug Fixes¶
Fix memory leak caused when the tracer is disabled.
v0.56.0rc1¶
Upgrade Notes¶
The aredis integration is now enabled by default.
Deprecation Notes¶
The contents of
monkey.py
have been moved into_monkey.py
in an effort to internalize the module. Public methods have been imported back intomonkey.py
in order to retain compatibility, but monkey.py will be removed entirely in version 1.0.0.
Bug Fixes¶
Fix Pyramid caller_package level issue which resulted in crashes when starting Pyramid applications. Level now left at default (2).
Set the correct package name in the Pyramid instrumentation. This should fix an issue where the incorrect package name was being used which would crash the application when trying to do relative imports within Pyramid (e.g. when including routes from a relative path).
v0.55.0rc1¶
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 withdogstatsd_socket
in yourdatadog.yaml
file, or theDD_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 >= 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): includepytest
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.
Upgrade Notes¶
Instead of using error constants from
ddtrace.ext.errors
. Use constants fromddtrace.constants
module. For example:ddtrace.ext.errors.ERROR_MSG
->ddtrace.constants.ERROR_MSG
Instead of using priority constants from
ddtrace.ext.priority
. Use constants fromddtrace.constants
module. For Example::ddtrace.ext.priority.AUTO_KEEP
->ddtrace.constants.AUTO_KEEP
Instead of using system constants from
ddtrace.ext.system
. Use constants fromddtrace.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
, useDD_AGENT_HOST
For
DATADOG_TRACE_AGENT_PORT
useDD_AGENT_PORT
For
DATADOG_PRIORITY_SAMPLING
, follow ingestion controlsFor
DATADOG_PATCH_MODULES
, useDD_PATCH_MODULES
Moved
ddtrace.ext.errors
constants into theddtrace.constants
module.ddtrace.ext.errors
will be removed in v1.0. Shorthand error constant (MSG,TYPE,STACK) inddtrace.ext.errors
will be removed in v1.0. Functionget_traceback()
in ddtrace.ext.errors is now deprecated and will be removed v1.0.
Moved
ddtrace.ext.priority
constants intoddtrace.constants
module.
Moved
ddtrace.ext.system
constants intoddtrace.constants
module.
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.
v0.54.0rc1¶
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 withapm_config.receiver_socket
in yourdatadog.yaml
file, or theDD_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
orreferer:http.referer Content-Type:http.content_type
.
Deprecation Notes¶
Deprecate the DATADOG_ENV environment variable in favor of DD_ENV. The use of DD_ENV should follow Unified Service Tagging recommendations.
Bug Fixes¶
pytest: report exception details directly instead of through a RuntimeWarning 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 frompytest
would be missing becausepytest_runtest_makereport
hook is not run, like whenpytest
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 Notes¶
Added runtime metrics status and sampling rules to start-up logs.
v0.53.0rc1¶
New Features¶
The
ddtrace.Tracer.get_log_correlation_context
method has been added to replaceddtrace.helpers.get_correlation_ids
. It now returns a dictionary which includes the current span’s trace and span ids, as well as the configured service, version, and environment names.
The gevent tasks are now tracked by the threading lock events
Upgrade Notes¶
Replace DD_TRACER_PARTIAL_FLUSH_ENABLED with DD_TRACE_PARTIAL_FLUSH_ENABLED Replace DD_TRACER_PARTIAL_FLUSH_MIN_SPANS with DD_TRACE_PARTIAL_FLUSH_MIN_SPANS
Deprecation Notes¶
The DD_TRACER_PARTIAL_FLUSH_ENABLED and DD_TRACER_PARTIAL_FLUSH_MIN_SPANS environment variables have been deprecated and will be removed in version 1.0 of the library.
Bug Fixes¶
Fixes an issue where a manually set
django.request
span resource would get overwritten by the integration.
Pin
setup_requires
dependencysetuptools_scm[toml]>=4,<6.1
to avoid breaking changes.
The profiler now updates the trace resource when capturing span information with the stack and lock collectors. That means that if the trace resource changes after the profiling events are created, the profiler samples will also be updated. This avoids having trace resource being empty when profiling, e.g., WSGI middleware.
v0.52.0rc1¶
New Features¶
Add tracing support for the
httpx
library. Supported versions>=0.14.0
.
- ASGI: store the ASGI span in the scope. The span can be retrieved with the
ddtrace.contrib.asgi.span_from_scope
function.
Submit runtime metrics as distribution metrics instead of gauge metrics.
Support flask-caching (>= 1.10.0) with the Flask-Cache tracer.
Only for CI Visibility (pytest integration): It is now possible to specify any of the following git metadata through environment variables: * DD_GIT_REPOSITORY_URL: The url of the repository where the code is stored * DD_GIT_TAG: The tag of the commit, if it has one * DD_GIT_BRANCH: The branch where this commit belongs to * DD_GIT_COMMIT_SHA: The commit hash of the current code * DD_GIT_COMMIT_MESSAGE: Commit message * DD_GIT_COMMIT_AUTHOR_NAME: Commit author name * DD_GIT_COMMIT_AUTHOR_EMAIL: Commit author email * DD_GIT_COMMIT_AUTHOR_DATE: The commit author date (ISO 8601) * DD_GIT_COMMIT_COMMITTER_NAME: Commit committer name * DD_GIT_COMMIT_COMMITTER_EMAIL: Commit committer email * DD_GIT_COMMIT_COMMITTER_DATE: The commit committer date (ISO 8601)
Deprecation Notes¶
Removed the
collect_metrics
argument fromTracer.configure
. See the release notes for v0.49.0 for the migration instructions.
Bug Fixes¶
ASGI: handle decoding errors when extracting headers for trace propagation.
Corrected some typing annotations for PEP 484 compliance
Django: add support for version 3.1+ ASGI applications. A different codepath is taken for requests starting in Django 3.1 which led to the top level span not being generated for requests. The fix introduces automatic installation of the ASGI middleware to trace Django requests.
- dogpile.cache: handle both kwargs and args in the wrapper functions (using
only kwargs would result in an IndexError.
Fixes an issue with the Django integration where if the
urlconf
changes at any point during the handling of the request then the resource name will only be<METHOD> 404
. This fix moves resource name resolution to the end of the request.
Fixes error with tagging non-string Flask view args.
werkzeug.exceptions.NotFound
404 errors are no longer raised and logged as a server error in the Flask integration.
Fixes type hinting for
**patch_modules
parameter forpatch
/patch_all
functions.
Fixes an issue when using the pytest plugin with doctest which raises an
AttributeError
onDoctestItem
.
Fixes a bug in the pytest plugin where xfail test cases in a test file with a module-wide skip raises attribute errors and are marked as xfail rather than skipped.
Fixed the handling of sanic endpoint paths with non-string arguments.
- opentracer: don’t override default tracing config for the ENABLED,
AGENT_HOSTNAME, AGENT_HTTPS or AGENT_PORT settings.
v0.51.0rc2¶
New Features¶
Added support for
aipg~=0.16.0
.
Add MariaDB integration.
The profiler now exports active tasks for CPU and wall time profiles.
Upgrade Notes¶
botocore: Update trace propagation format for directly invoked Lambda functions. This breaks compatibility with Lambda functions instrumented with datadog-lambda-python < v41 or datadog-lambda-js < v3.57.0. Please upgrade datadog-lambda-* in invoked lambda functions, or engage legacy compatibility mode in one of two ways: - ddtrace.config.botocore.invoke_with_legacy_context = True - DD_BOTOCORE_INVOKE_WITH_LEGACY_CONTEXT=true
Bug Fixes¶
Fixed JSON encoding errors in the pytest plugin for parameterized tests with dictionary parameters with tuple keys. The pytest plugin now always JSON encodes the string representations of test parameters.
Fixed JSON encoding errors in the pytest plugin for parameterized tests with complex Python object parameters. The pytest plugin now defaults to encoding the string representations of non-JSON serializable test parameters.
Fix a possible NoneType error in the WSGI middleware start_response method.
v0.51.0rc1¶
New Features¶
Added support for
jinja2~=3.0.0
.
The pytest integration now uses the name of the repository being tested as the default test service name.
Upgrade Notes¶
The legacy Django configuration method (deprecated in 0.34) has been removed.
Deprecation Notes¶
monkey.patch_module
is deprecated.
monkey.get_patch_module
is deprecated.
Bug Fixes¶
Fixes an issue with enabling the runtime worker introduced in v0.49.0 where no runtime metrics were sent to the agent.
Fix pymongo 3.12.0+ spans not being generated.
v0.50.0rc5¶
New Features¶
The Python heap profiler can now be enabled by setting the
DD_PROFILING_HEAP_ENABLED
environment variable to1
.
Other Notes¶
The botocore integration excludes AWS endpoint call parameters that have a name ending with
Body
from the set of span tags.
v0.50.0rc4¶
New Features¶
The pytest plugin now includes support for automatically tagging spans with parameters in parameterized tests.
v0.50.0rc3¶
New Features¶
Add new environment variables to configure the internal trace writer.
DD_TRACE_WRITER_MAX_BUFFER_SIZE
,DD_TRACE_WRITER_INTERVAL_SECONDS
,DD_TRACE_WRITER_MAX_PAYLOAD_SIZE_BYTES
The exception profiler now gathers and exports the traces and spans information.
Deprecation Notes¶
The deprecated dbapi2 configuration has been removed. The integration-specific configuration should be used instead. Look at the v0.48.0 release notes for migration instructions.
Bug Fixes¶
Fixed the handling of the Django template name tag causing type errors.
Fixes an issue when trying to manually start the runtime metrics worker:
AttributeError: module 'ddtrace.internal.runtime' has no attribute 'runtime_metrics'
sanic: update instrumentation to support version 21.
Performance of the Celery integration has been improved.
Fix runtime-id and system.pid tags not being set on distributed traces.
v0.50.0rc2¶
New Features¶
Add new
DD_TRACE_AGENT_TIMEOUT_SECONDS
to override the default connection timeout used when sending data to the trace agent. The default is2.0
seconds.
The CI tagging for the pytest plugin now includes OS and Python Runtime metadata including system architecture, platform, version, and Python runtime name and version.
Deprecation Notes¶
The reuse of a tracer that has been shut down has been deprecated. A new tracer should be created for generating new traces.
Bug Fixes¶
The shutdown task is re-registered when a tracer is reused after it has been shut down.
Fixed the optional argument of
Span.finish
toOptional[float]
instead ofOptional[int]
.
Other Notes¶
The pytest plugin now includes git metadata tags including author name and email as well as commit message from CI provider environments.
The profiler won’t be ignoring its own resource usage anymore and will report it in the profiles.
v0.50.0rc1¶
Prelude¶
Major changes to context management. See the upgrade section for the specifics. Note that only advanced users of the library should be affected by these changes. For the details please refer to the Context section of the docs: https://ddtrace.readthedocs.io/en/v0.50.0/advanced_usage.html
New Features¶
Add
DD_CALL_BASIC_CONFIG={true,false}
environment variable to control whetherddtrace
callslogging.basicConfig
. By default when usingddtrace-run
or running in debug modelogging.basicConfig
is called to ensure there is always a root handler. This has compatibility issues for some logging configurations.DD_CALL_BASIC_CONFIG=false
can be used to skip callinglogging.basicConfig
. The default value istrue
to maintain existing behavior.
agent: support URL with a base path
Automated context management should now work in all asynchronous frameworks that use
contextvars
.
tracer.start_span()
now accepts anactivate
argument (defaultFalse
) to allow manual context management.
tracer.current_trace_context()
has been added to be used to access the trace context of the active trace.
A warning has been added to alert when gevent monkey patching is done after ddtrace has been imported.
Add support for Flask 2
Added retry logic to the tracer to mitigate potential networking issues, like timeouts or dropped connections.
Upgrade Notes¶
ddtrace.contrib.asyncio
-AsyncioContextProvider
can now return and activateNone
,Span
orContext
objects.
ddtrace.contrib.gevent
-GeventContextProvider
can now return and activateNone
,Span
orContext
objects.
ddtrace.contrib.tornado
-TracerStackContext
can now return and activateNone
,Span
orContext
objects.
ddtrace.context.Context
no longer maintains the active/current span state.get_current_root_span()
has been removed. Usetracer.current_root_span()
instead.get_current_span()
has been removed. Usetracer.current_span()
instead.add_span()
has been removed. To activate a span in an execution usetracer.context_provider.activate()
instead.close_span()
has been removed. To deactivate a span in an execution usetracer.context_provider.activate()
instead.
ddtrace.provider.BaseContextProvider
active()
now returnsNone
,Span
orContext
objects.activate()
now acceptsNone
,Span
orContext
objects.
ddtrace.span.Span
-Span.context
will now return aContext
ddtrace.tracer.Tracer
tracer.get_call_context()
will now return a one-offContext
reference. This is to maintain backwards compatibility with the API but the functionality differs slightly.tracer.start_span()
passing aspan.context
forchild_of
no longer adds the strong_parent
reference to the new span.
Support for MySQL-python has been removed.
Support for psycopg < 2.7 has been removed.
Bug Fixes¶
The OpenTracing
tracer.start_span
method no longer activates spans.
Datadog active spans will no longer take precedence over OpenTracing active spans.
django: fix a bug where multiple database backends would not be instrumented.
django: fix a bug when postgres query is composable sql object.
A possible memory leak that occurs when tracing across a fork has been fixed. See https://github.com/DataDog/dd-trace-py/pull/2497 for more information.
Fix double patching of
pymongo
client topology.
v0.49.0rc1¶
Prelude¶
Several deprecations have been made to Context
as we prepare to move active span management out of this class.
New Features¶
The futures integration is now enabled by default.
requests: add global config support. This enables the requests service name to be configured with
ddtrace.config.requests['service']
or theDD_REQUESTS_SERVICE
environment variable.
Upgrade Notes¶
Support for aiohttp previous to 2.0 has been removed.
Support for deprecated DD_PROFILING_API_URL environment variable has been removed. Use DD_SITE instead.
Support for deprecated DD_PROFILING_API_KEY environment variable has been removed. Use DD_API_KEY instead.
Profiling support for agentless mode must now be explicitly enabled.
- The ddtrace pytest plugin can now label spans from test cases marked xfail with the tag “pytest.result”
and the reason for being marked xfail under the tag “pytest.xfail.reason”.
Removed ddtrace.ext.AppTypes and its usages in the tracer library.
requests: spans will no longer inherit the service name from the parent.
The return value of
Span.pprint()
has been changed to a single line in the tracer debug logs rather than the previous custom multiline format.
Spans are now processed per tracer instance. Formerly spans were stored per-Context which could be shared between tracer instances. Note that context management is not affected. Tracers will still share active spans.
Spans from asynchronous executions (asyncio, gevent, tornado) will now be processed and flushed together. Formerly the spans were handled per-task.
tracer.write()
will no longer have filters applied to the spans passed to it.
The function
ddtrace.utils.merge_dicts
has been removed.
Deprecation Notes¶
Context.clone
is deprecated. It will not be required in 0.50.
Context.add_span
is deprecated and will be removed in 0.50.
Context.add_span
is deprecated and will be removed in 0.50.
Context.close_span
is deprecated and will be removed in 0.50.
Context.get_current_span
is deprecated and will be removed in 0.50 please use Tracer.current_span instead.
Context.get_current_root_span
is deprecated and will be removed in 0.50 please useTracer.current_root_span
instead.
Deprecate the configuration of the analytics through the generic dbapi2 configuration. This should now be configured via integration configurations, for example:
# Before export DD_TRACE_DBAPI2_ANALYTICS_ENABLED=1 # After export DD_TRACE_SQLITE3_ANALYTICS_ENABLED=1
ddtrace.compat has been deprecated and will be removed from the public API in ddtrace version 1.0.0.
Deprecate ddtrace.config.dbapi2 as default for TracedCursor and TracedConnection as well as DD_DBAPI2_TRACE_FETCH_METHODS. Use IntegrationConfig and DD_<INTEGRATION>_TRACE_FETCH_METHODS specific to each dbapi-compliant library. For example:
# Before config.dbapi2.trace_fetch_methods = True # After config.psycopg2.trace_fetch_methods = True
The use of
ddtrace.encoding
has been deprecated and will be removed in version 1.0.0.
The ddtrace.http module has been deprecated and will be removed in version 1.0.0, with the ddtrace.http.headers module now merged into ddtrace.trace_utils.
The
collect_metrics
argument of thetracer.configure
method has been deprecated. Runtime metrics should be enabled only via theDD_RUNTIME_METRICS_ENABLED
environment variable.
Bug Fixes¶
Fix broken builds for Python 2.7 on windows where
<stdint.h>
was not available. This change also ensures we build and publishcp27-win
wheels.
CGroup file parsing was fixed to correctly parse container ID with preceding characters.
grpc: handle None values for span tags.
grpc: handle no package in fully qualified method
grpc: Add done callback in streaming response to avoid unfinished spans if a StopIteration is never raised, as is found in the Google Cloud libraries.
grpc: handle IPv6 addresses and no port in target.
Fix DD_LOGS_INJECTION incompatibility when using a
logging.StrFormatStyle
(logging.Formatter(fmt, style="{")
) log formatter.
Fixed a bug that prevented the right integration name to be used when trying to patch a module on import that is already loaded.
Fix
urllib3
patching not properly activating the integration.
gRPC client spans are now marked as measured by default.
Fixes issue of unfinished spans when response is not a grpc.Future but has the same interface, as is the case with the base future class in google-api-core.
In certain circumstances, the profiles generated in a uWSGI application could have been empty. This is now fixed and the profiler records correctly the generated events.
The default agent timeout for profiling has been restored from 2 to 10 seconds to avoid too many profiles from being dropped.
Fix issue with missing traces when using
pymemcache.client.hash.HashClient
.
Added missing pymongo integration configuration, which allows overriding the service name for all the emitted spans.
Other Notes¶
Added environment variable DD_BOTTLE_DISTRIBUTED_TRACING to enable distributed tracing for bottle.
The attrs library has been unvendored and is now required as a normal Python dependency with a minimum version requirement of 19.2.0.
The six library has been removed from vendor and the system-wide version is being used. It requires version 1.12.0 or later.
Documentation on how to use Gunicorn with the
gevent
worker class has been added.
Added environment variable DD_FALCON_DISTRIBUTED_TRACING to enable distributed tracing for falcon.
When extracting context information from HTTP headers, a new context is created when the trace ID is either 0 or not available within the headers.
Added environment variable DD_PYLONS_DISTRIBUTED_TRACING to enable distributed tracing for pylons.
Update
pymemcache
test suite to test latest versions.
Added config.pyramid.distributed_tracing setting to integration config for pyramid.
The
ddtrace.payload
submodule has been removed.
Added environment variable DD_TORNADO_DISTRIBUTED_TRACING to enable distributed tracing for tornado.
v0.48.0rc2¶
New Features¶
Adds support for the Datadog Lambda Extension. The tracer will send traces to the extension by default if it is present.
Add support for space-separated DD_TAGS.
urllib3: add urllib3 integration
v0.48.0rc1¶
New Features¶
dogpile.cache: is now automatically instrumented by default.
pylons: now supports all the standard http tagging including query string, custom error codes, and request/response headers.
The ddtrace pytest plugin can now call
ddtrace.patch_all
via the--ddtrace-patch-all
option.
Span
now accepts aon_finish
argument used for specifying functions to call when a span finishes.
Upgrade Notes¶
The deprecated dogstatsd_host and dogstatsd_port arguments to tracer.configure() have been removed.
Support for gevent 1.0 has been removed and gevent >= 1.1 is required.
flask: deprecated configuration option extra_error_codes has been removed.
The deprecated
pyddprofile
wrapper has been removed. Useddtrace-run
withDD_PROFILING_ENABLED=1
set instead.
A ValueError will now be raised on tracer initialization if the Agent URL specified to the initializer or with the environment variable DD_TRACE_AGENT_URL is malformed.
uWSGI is no longer supported with
ddtrace-run
due to a limitation of how tracer initialization occurs. See the updated instructions for enabling tracing in the library uWSGI documentation.
Bug Fixes¶
The
Records
parameter toFirehose
endpoint calls is being excluded from the tags to avoid generating traces with a large payload.
Tracer: fix configuring tracer with dogstatsd url.
elasticsearch: patch versioned elasticsearch modules (elasticsearch1, …, elasticsearch7).
botocore: Do not assume that ResponseMeta exists in the results.
django: handle erroneous middleware gracefully.
The tracer now captures the task ID from the cgroups file for Fargate >= 1.4.0 and reports it to the agent as the Datadog-Container-ID tag.
Fix a bug when tracing a mako
DefTemplate
or anyTemplate
that does not have afilename
property.
flask: fix a bug when the query string would contain non-Unicode characters
Fix a formatting issue on error exporting profiles.
A workaround is provided for the problem with uWSGI worker processes failing to respawn. This can occur when using
ddtrace-run
for automatic instrumentation and configuration or manual instrumentation and configuration without the necessary uWSGI options. The problem is caused by how the tracer can end up starting threads in the master process before uWSGI forks to initialize the workers processes. To avoid this, we have provided updated instructions for enabling tracing in the library uWSGI documentation.
Other Notes¶
The logic behind the header extraction for distributed tracing has been improved.
The default connection timeout for the profiling agent has now been reduced from 10 to 2 seconds to match the tracer behavior.
The tracemalloc memory profiler, which was disabled by default, has been removed.
Query strings are stripped out from URLs by default when setting URL metadata on a span. This change affects all integrations that store HTTP metadata, like aiohttp, falcon, requests, urllib3.
v0.47.0rc1¶
New Features¶
cherrypy: introduce TraceMiddleware for the CherryPy web framework.
django: tag root spans as measured.
elasticsearch: add support for version 7.
fastapi: add integration.
Introduce support for the DD_SERVICE_MAPPING environment variable to allow remapping service names on emitted spans.
httplib: distributed tracing is now enabled by default.
The profiler now supports most operation mode from uWSGI without much configuration. It will automatically plug itself in post fork hooks when multiprocess mode is used.
wsgi: add tracing middleware.
Upgrade Notes¶
elasticsearch: removed get_traced_transport method and ddtrace.contrib.elasticsearch.transport module.
The profiler now automatically sets up uWSGI compatibility in auto mode or with profile_children=True. Make sure that you don’t have custom code instrumenting the profiler in those cases.
The
Tracer
class properties DEFAULT_HOSTNAME, DEFAULT_PORT, DEFAULT_DOGSTATSD_PORT, DEFAULT_DOGSTATSD_URL, DEFAULT_AGENT_URL have been removed.
Bug Fixes¶
Resolves an issue in Django tracing where, if query_string is not present in request.META, a KeyError is raised, causing the request to 500
Deprecate the DD_LOGGING_RATE_LIMIT variable in favor of the standard DD_TRACE_LOGGING_RATE for configuring the logging rate limit.
sampler: removed bug causing sample_rate of 0 to be reset to 1, and raise ValueError instead of logging.
starlette: unpatch calls correctly.
flask: fix memory leak of sampled out traces.
Fix CPU time and wall time profiling not ignoring the profiler tasks with gevent.
Other Notes¶
The default maximum CPU time used for the stack profiler (CPU time, wall time and exceptions profiling) has been decreased from 2% to 1%.
v0.46.0rc1¶
New Features¶
aiohttp: store request and response headers.
bottle: store request and response headers.
flask: store response headers.
molten: store request headers.
pyramid: store request and response headers.
flask: store request and response headers when auto-instrumented.
The ddtrace.profiling.auto module will warn users if gevent monkey patching is done after the profiler is auto-instrumented.
The Profiler object can now be passed tags with the tags keyword argument.
Upgrade Notes¶
The profiler will only load tags from the DD_TAGS environment variable once at start.
Deprecation Notes¶
flask: Use HTTP Custom Error Codes instead of
ddtrace.config.flask['extra_error_codes']
.
Bug Fixes¶
dbapi: avoid type error with potential non-compliance in db libraries when setting tag for row count.
django: add legacy resource format of {handler}.
grpc: fix wrapper for streaming response to support libraries that call an internal method directly.
sanic: use path parameter names instead of parameter values for the resource.
The profiler won’t deadlock on fork when gevent monkey patch is enabled.
requests: fix TracedSession when patches are not applied.
v0.45.0rc1¶
Prelude¶
Build and deploy Python 3.9 wheels for releases
New Features¶
botocore: added distributed_tracing configuration setting which is enabled by default.
- The ddtrace-run command now supports the following arguments:
-h, –help -d, –debug enable debug mode (disabled by default) -i, –info print library info useful for debugging -p, –profiling enable profiling (disabled by default) -v, –version show program’s version number and exit
It now also has friendlier error messages when used incorrectly.
Add functionality to call gevent.monkey.patch_all() with ddtrace-run by setting the environment variable DD_GEVENT_PATCH_ALL=true. This ensures that gevent patching is done as early as possible in the application.
botocore: inject distributed tracing data to ClientContext to trace lambda invocations.
botocore: inject tracing data to MessageAttributes.
The profiler now tracks the running gevent Greenlet and store it as part of the CPU and wall time profiling information.
The profiler is now able to upload profiles to the Datadog Agent by using a Unix Domain Socket.
It is now possible to pass a url parameter to the Profiler to specify the Datadog agent location.
The new memory profiler for Python is now enabled by default. This improves the profiler memory consumption and performance impact. It can still be disabled by setting DD_PROFILING_MEMALLOC=0 as an environment variable.
The profiler now uses the tracer configuration is no configuration is provided.
pytest integration. This enables the pytest runner to trace test executions.
Upgrade Notes¶
Context.get() has been removed and the functionality has been rolled into Context.close_span().
Tracer.record() has similarly been removed as it is no longer useful with Context.get() removed.
The deprecated compatibility module ddtrace.profile has been removed.
The profiler now uses the tracer configuration is no configuration is provided.
Deprecation Notes¶
The pyddprofile wrapper is deprecated. Use DD_PROFILING_ENABLED=true ddtrace-run instead.
The profiler does not catch uncaught exception anymore.
Bug Fixes¶
core: always reset the current_span in the context.
django: Http404 exceptions will no longer be flagged as errors
django: add safe guards for building http.url span tag.
aiobotocore: set span error for 5xx status codes.
elasticsearch: set span error for 5xx status codes.
django, DRF, ASGI: fix span type for web request spans.
Fixes span id tagging in lock profiling.
Fix UDS upload for profiling not using the correct path.
Fixed an issue in profiling exporting profiles twice when forking.
core: fix race condition in TracerTagCollector.
Other Notes¶
Start-up logs are now disabled by default. To enable start-up logs use DD_TRACE_STARTUP_LOGS=true or DD_TRACE_DEBUG=true.
v0.44.0¶
Prelude¶
Add support for Python 3.9
New Features¶
Store request headers in Flask integration.
pyodbc integration. This enables the pyodbc library to trace queries.
starlette integration resource aggregation This aggregates endpoints to the starlette application resource that was accessed. It occurs by default but it is configurable through config.starlette[“aggregate_resources”].
The profiler now captures the traces information with the lock profiling.
The Profiler instances now restart automatically in child process when the main program is forked. This only works for Python ≥ 3.7.
Bug Fixes¶
dbapi: add support for connection context manager usage
django: check view before instrumenting MRO.
core: use loose types when encoding.
Patch pynamodb on import to prevent patching conflicts with gevent.
tornado: handle when the current span is None in log_exception().
Prior Releases¶
Release notes prior to v0.44.0 can be found in CHANGELOG.md in the root of the repository.