dd-trace-php

Added

• Target a specific PHP version during install by setting DD_TRACE_PHP_BIN #604
• Curl Integration: Add all available information from curl_getinfo() as span tags #642

Changed

• Move dogstatsd client init to rinit #703

Fixed

• Issues related to limited tracing #689
• Backup and restore last error (related to error_get_last() issue) #694
• Handle out-of-sync spans #702
• Sandbox tracer flushing #707
• Enhance OpenTracing StartSpanOptions support #708
• Ensure errors raised in request init hook do not affect error_get_last() #709

Fixed

• Support OpenTracing contexts as parent contexts #695
• Avoid Curl 100-Continue #691; thanks @draco2003!

Note environment variable DD_SAMPLING_RATE as been deprecated. Use DD_TRACE_SAMPLE_RATE instead.

Added

• Close open sandboxed spans on exit on PHP 7 #679
• Support for tracing without limits #686
• Add extra info to curl errors #688

Changed

• Enable Sandboxed Symfony Integration #682
• Migrate Mongo library integration to sandboxed api #669
• Rename env DD_SAMPLING_RATE to DD_TRACE_SAMPLE_RATE #687

Added

• Compile-time metric #648
• Health metrics: track segmentation faults #621

Changed

• Migrate Mysqli integration to sandboxed api #635
• Migrate Zend framework integration to sandboxed api #655
• Migrate Symfony framework integration to sandboxed api #667
• Refactor opcode hooks #659

Fixed

• CodeIgniter namespace definition #650
• Mutation of Memcached result code #663
• Error reporting in case of fatal errors #671 This ticket was here by mistake. Work is still in progress here.

Fixed

• PHP notice of undefined indexes REQUEST_METHOD and REQUEST_URI when running the request init hook on unsupported SAPI's #637
• Distributed trace ID handling #645

Added

• Yii 2 support #624, #630
• Enable tracing when no autoloaders used by setting DD_TRACE_NO_AUTOLOADER=true #627
• Safe to-string conversion for all datatypes on DDTrace\SpanData #613

Changed

• Improve dd-doctor with and container tagging detector when open_basedir is set #629

Fixed

Added

• Trace origin support (Synthetics support) #615

Added

• Preview CodeIgniter v2 integration #588
• Preview WordPress v4 integration #570

Please report any issues you encounter with these two preview integrations.

Fixed

• ZF1 integration response after loading #609
• Prevent mysqli_connect() span from closing twice #610
• Support mysqli usage when using real_connect approach #607

Added

• Add container id header to http transport (Container Tagging) - #552
• Attach exceptions to spans in new API #548

Changed

• Migrate PDO integration to sandbox API #538
• Migrate Eloquent integration to sandbox API #559
• Migrate memcached integration to sandbox API #578
• Migrate elasticsearch integration to sandbox API #562

Fixed

• Predis integration for clusters #574 (thank you @RaoulMeyer!)
• Avoid reserved word "fn" #543
• Fix ZTS builds, remove COMPAT_CTX_* #544
• Curl headers are overwritten when using curl_copy_handle function #502
• Correctly treat class names as case insensitive #571
• Static keyword handling #576
• Improve sandboxing of request init hook #583
• Make PHP API check more specific #590 (thank you @iedsapala!)

Fixed

• Ensure the request init hook is bound by the open_basedir INI directive #579

ADVISORY: This release circumvents open_basedir in the request_init_hook. If you rely on the open_basedir INI directive, we highly recommended you upgrade to 0.30.2.

Fixed

• releasing $this object as soon as it stops being used #536

ADVISORY: This release circumvents open_basedir in the request_init_hook. If you rely on the open_basedir INI directive, we highly recommended you upgrade to 0.30.2.

Fixed

• Shutdown span flushing blocking the process when forked #493
• Memory access errors in cases when PHP code was run after extension data was freed on request shutdown #505
• Request init hook working when open_basedir restriction is in effect #505
• Ensure global resources are freed in shutdown #521 #523
• Http transport not setting required X-Datadog-Trace-Count header #525

Changed

• Remove zend_execute_ex override and trace ZEND_DO_UCALL #519

SERVICE NAME CHANGE NOTICE: If the tracer is configured with DD_TRACE_HTTP_CLIENT_SPLIT_BY_DOMAIN=true, the hostnames will now be prefixed with host-. If there are any monitors set up for service names by host, those will need to be updated.

Fixed

• Edge case where the extension version and userland version can get out of sync #488

Changed

• Prefix hostnames as service names with host- to ensure compatibility with the Agent #490

Fixed

• Race condition when reading configuration from within writer thread context #486

Added

• Officially support Symfony 3.0 and 4.0 #475

Fixed

• Stack level too deep error due to changes in how PHP interprets Opcodes caused by the extension #477

Changed

• Backtrace handler will be run only once and will display information about maximum stack size being reached #478

Changed

• Valgrind configuration to perform more thorough memory consistency verification #472

Fixed

• Memory leak detected in tests #472

Fixed

• Memory leak when garbage collecting span stacks #469

Added

• Set the hostname of a URL as the service name for curl and Guzzle requests when DD_TRACE_HTTP_CLIENT_SPLIT_BY_DOMAIN=true #459

Changed

• Replace multiple calls to mt_rand() (32-bit) with one call to dd_trace_generate_id() which implements MT19937-64 and returns a 63-bit unsigned integer as a string #449

Fixed

• Traces no longer affect deterministic random from mt_rand() #449
• Fix API change with Symfony 4.x EventDispatcher #466

Added

• Initial implementation of flushing spans via background thread #450

Changed

• URL-normalization rule boundaries #457

Added

• Support for Slim Framework v3 #446
• IPC based configurable Circuit breaker DD_TRACE_AGENT_ATTEMPT_RETRY_TIME_MSEC and DD_TRACE_AGENT_MAX_CONSECUTIVE_FAILURES used when communicating with the agent #440
• Normalized URL's as resource names; a CSV string of URL-to-resource-name mapping rules with * and $* wildcards can be set from DD_TRACE_RESOURCE_URI_MAPPING. This feature is disabled by default to reduce cardinality in resource names; to enable this feature set DD_TRACE_URL_AS_RESOURCE_NAMES_ENABLED=true #442