0.12.0

New Instrumentation (disabled by default)

• gRPC client and server 1.5+ #388
  • System property: dd.integration.grpc.enabled=true
  • Environment variable: DD_INTEGRATION_GRPC_ENABLED=true
• Akka HTTP client #377
  • System property: dd.integration.akka-http.enabled=true
  • Environment variable: DD_INTEGRATION_AKKA-HTTP_ENABLED=true

Improvements

• Better compatibility with other trace clients #392
  • Support unsigned 64 bit, instead of just 63 bits (signed).
• Allow mapping on configured service name #398
• Restructure spans created by HttpUrlConnection instrumentation #386
  • Still disabled by default. Enable as follows:
    • System property: dd.integration.httpurlconnection.enabled=true
    • Environment variable: DD_INTEGRATION_HTTPURLCONNECTION_ENABLED=true
• Improve Java 10 compatibility by removing cases of reflection #400 #414
• Simplify Servlet instrumentation and improve async handling #405
• Support OpenTracing service and peer.service tags for service naming #394
• Allow DDTraceResolver to be disabled via config #415
  • System property: dd.trace.resolver.enabled=false
  • Environment variable: DD_TRACE_RESOLVER_ENABLED=false
• Ignore empty value tags for dd.span.tags config #418
• Improve netty instrumentation handling when not using the netty-all dependency #411
  • Known issue with instrumentation when ChannelPipeline interface isn't loaded before the implementing class. Fixed in 0.13.0 #426

0.11.0

Improvements

• Make Lettuce instrumentation enabled by default #387
• Implement additional checks framework to prevent intrumentations being applied when dependencies are missing #383
• Add test build for Java 10 #384

Bugfixes

• Fix JDBC instrumentation causing additional requests to certain databases when using connection pools #382, fixes #379.

0.10.0

New Instrumentation (disabled by default)

• Netty Http Server and Client Instrumentation #352
  • System property: dd.integration.netty.enabled=true
  • Environment variable: DD_INTEGRATION_NETTY_ENABLED=true
• Generic JSP Instrumentation and Tomcat Jasper JSP Compilation Instrumentation #354
  • System property: dd.integration.jsp.enabled=true
  • Environment variable: DD_INTEGRATION_JSP_ENABLED=true
• Akka-Http Server Instrumentation #350
  • Instrumentation supports the Lagom Framework as well
  • System property: dd.integration.akka-http.enabled=true
  • Environment variable: DD_INTEGRATION_AKKA-HTTP_ENABLED=true
• Lettuce 5 redis client integration #336
  • System property: dd.integration.lettuce.enabled=true
  • Environment variable: DD_INTEGRATION_LETTUCE_ENABLED=true
• Elasticsearch Client Instrumentation #329
  • System property: dd.integration.elasticsearch.enabled=true
  • Environment variable: DD_INTEGRATION_ELASTICSEARCH_ENABLED=true
• URLConnection Instrumentation #340
  • Includes HttpURLConnection
  • System property: dd.integration.httpurlconnection.enabled=true
  • Environment variable: DD_INTEGRATION_HTTPURLCONNECTION_ENABLED=true
• Spymemcached Instrumentation #353
  • System property: dd.integration. spymemcached.enabled=true
  • Environment variable: DD_INTEGRATION_SPYMEMCACHED_ENABLED=true

Improvements

• Add Correlation Identifier for use with logging MDC Frameworks #345
  • https://docs.datadoghq.com/tracing/setup/java/#logging-and-mdc
• Set Servlet’s user-principal as a tag when available #371
• Reduce rounding errors for sub-ms spans #358
• Enhance JMS receive instrumentation #360
  • Trace calls without messages to consume
  • Instrument wait(timeout) calls
• Enhance threadpool instrumentation to work with SlickDB #341

Bugfixes

• Priority Sampling Implementation bug #373
• Async Servlet stops reporting traces #357 #364
• Cassandra Instrumentation fails to apply due to missing guava dependency #378
• Improve shutdown handling for apps without an explicit exit statement #347

0.9.0

Improvements

• Enabled the following instrumentation by default: (#332)
  • Play 2
  • Hystrix
  • Jax-RS Client

Bugfixes

• Fixed naming issue with Unknown services. Those are now properly labeled as Databases. (#324)
• Fixed identifying JDBC connections when an exception is thrown in the constructor. (#322)
• Prevent casting error by not instrumenting slick's threadpool (#327)
• Prevent nested JDBC spans (#302)

0.8.0

Improvements

• Enabled the following instrumentation by default
  • Java Executor Service (#295)
    • Caveat: you still need to manually toggle it in your custom instrumentation.
      ((TraceScope) scope).setAsyncPropagation(true);
    • Some frameworks (servlets and jms message listeners) have this flag toggled automatically (#316)
• Dynamically rename services via configuration (#314)
  • Useful for making databases have distinct names across different services.
  • Configure mapping as follows:
    • System property: dd.service.mapping=mysql:my-service-db,cassandra:my-service-cassandra
    • Environment variable: DD_SERVICE_MAPPING=mysql:my-service-db,cassandra:my-service-cassandra
• Automatically set service name based on servlet context (war file name) if not already configured or configured, but empty. (#320)
• Improved instrumentation for AWS client: (#299)
  • This includes a change to the resource name.
• Automatically detect non-Datadog @Trace annotations (#311)
  • List of annotations can be replaced (or disabled with an empty list) using the following setting:
    • System property: dd.trace.annotations=com.some.Trace;io.other.Trace
    • Environment variable: DD_TRACE_ANNOTATIONS=com.some.Trace;io.other.Trace
• Configure additional methods to be traced without code change: (#311)
  • System property: dd.trace.methods=package.ClassName[method1,method2,...];AnonymousClass$1[call]
  • Environment variable: DD_TRACE_METHODS=package.ClassName[method1,method2];AnonymousClass$1[call]
• Automatically set a configured header value as a span tag (#317)
  • System property: dd.trace.header.tags=CASE-insensitive-Header:my-tag-name,User-ID:userId
  • Environment variable: DD_TRACE_HEADER_TAGS=CASE-insensitive-Header:my-tag-name,User-ID:userId
• Improve naming for @Trace generated spans on methods inside anonymous classes: now includes more class name. (#303)
• Upgraded to Byte Buddy 1.8.8 (#293)
• Remove guava dependency for dd-trace-ot (#307)

New Instrumentation (disabled by default)

• Hystrix (#306)
  • System property: dd.integration.hystrix.enabled=true
  • Environment variable: DD_INTEGRATION_HYSTRIX_ENABLED=true

Bugfixes

• Fixed Ratpack instrumentation -- still need to manually enable it (#301) (Thanks @jonmort!)
• Minor Kafka instrumentation change to reduce chance of breaking (#297)
• Prevent nested JDBC spans (#302)

0.7.0

Improvements

• Add startTime and duration to MutableSpan interface #283
• Improve trace count accuracy #289
• Priority Sampling config for Javaagent users #288

New Instrumentation (disabled by default)

• Play 2.4 - 2.6 #277 #282
  • System property: -Ddd.integration.java_concurrent.enabled=true -Ddd.integration.play.enabled=true
  • Environment variable: DD_INTEGRATION_JAVA_CONCURRENT_ENABLED=true DD_INTEGRATION_PLAY_ENABLED=true
• Support for Ratpack #276
  • Shoutout to @jonmort for the third-party contribution!
  • System property: -Ddd.integration.ratpack.enabled=true
  • Environment variable: DD_INTEGRATION_RATPACK_ENABLED=true
• Support for Spark Java #254
  • Shoutout to @JorgenG for the third-party contribution!
  • System property: -Ddd.integration.sparkjava.enabled=true -Ddd.integration.jetty.enabled=true
  • Environment variable: DD_INTEGRATION_SPARKJAVA_ENABLED=true DD_INTEGRATION_JETTY_ENABLED=true

Bugfixes

• Fix NoClassDefFoundError in jaxrs instrumentation #294
• Decrease log level for hot paths #291
• Correct units for start timestamp parameter name #286
• Instrument IBM-DB2 #281
• Fixed missing httpclient traces #296

For more details, check the full changeset and the release milestone.

0.6.0

Improvements

• Enabled the following instrumentation by default (#274)
  • JAX-RS annotation based resource naming
  • Jedis
  • Kafka client
• Upgraded to Byte Buddy 1.8.1 (#271)

New Instrumentation (disabled by default)

• JAX-RS Clients (#265)
  • System property: dd.integration.jax-rs.enabled=true
  • Environment variable: DD_INTEGRATION_JAX_RS_ENABLED=true
• Akka async actor propagation (#264)
  • System Property: dd.integration.java_concurrent.enabled=true
  • Environment variable: DD_INTEGRATION_JAVA_CONCURRENT_ENABLED=true

Bugfixes

• Fix instrumentation not loading for servlet 2 in some environments (#270)
• Instrumentation for Kafka Consumers weren't loading correctly in some environments (#275)
• Instrumenting old (pre Java 1.5) class files no longer fails (#266)
• Dectect Tibco temporary queue names properly (#268)

0.5.0

Improvements

• Configure tags to add to every span #245
• New TraceInterceptor API to modify and examine traces before sending to trace-agent #253

New Instrumentation (disabled by default)
(Will be default enabled in a future release. For this release, enable with the below config)

• scala async propagation for Promises and Futures #255
  • System Property: dd.integration.java_concurrent.enabled=true
  • Environment variable: DD_INTEGRATION_JAVA_CONCURRENT_ENABLED=true

Bugfixes

• Set max stack size correctly for error trapping #256
• Fix NPE edge-case in httpclient #258
• Mark all spans with an http status code of 5xx as an error #261
• Check up the classloader hierarchy to locate resources #259

For more details, check the full changeset and the release milestone.

0.4.1

Bugfixes

• [aws] Fix ClassNotFoundException when parsing aws headers (#244, #247)

For more details, check the full changeset and the release milestone.

0.4.0

Improvements

• Update javaagent bootstrap process to support enterprise application servers (#228)
  • WildFly/JBoss (#231)
  • OSGi (#232)

New Instrumentation (disabled by default)
(Will be default enabled in a future release. For this release, enable with the below config)

• Jedis redis client (#212)
  • Big shoutout to from @gihad from @uken for the first community contribution!
  • System Property: dd.integration.jedis.enabled=true
  • Environment variable: DD_INTEGRATION_JEDIS_ENABLED=true

Bugfixes

• Update DDApi connection with Datadog Agent v4 endpoint (#240)
• Use nanotime for additional clock resolution (#239)

For more details, check the full changeset and the release milestone.