New Features

finagle-core, finagle-exp: Add annotations to DarkTrafficFilter to identify which span
is dark, as well as which light span it correlates with. ba351f4d
finagle-core: Introduce Trace#traceLocal for creating local spans within a trace context.
1c6d5d24

Runtime Behavior Changes

finagle: Upgrade to jackson 2.9.10 and jackson-databind 2.9.10.1 e333c839
finagle-core: Per-method metrics on MethodBuilder are now created lazily, so if you have
methods that you don't use, the associated metrics won't be exported. 6be5dc48
finagle-mysql: The RollbackFactory no longer attempts to roll back if the underlying
session is closed since it is highly unlikely to succeed. It now simply poisons the
session and calls close. 99135e00
finagle-netty4: Change the 'connection_requests' metric to debug verbosity.
a6dc1296
finagle-serversets: Ensure ZkSession#retrying is resilient to ZK host resolution failure.
7125026a
finagle-thrift: Per-method metrics are now created lazily, so if you have methods on a Thrift
service that you don't use, the associated metrics won't be exported. 6be5dc48
finagle-zipkin-core: Tracing produces microsecond resolution timestamps in JDK9 or later.
08a926c6
finagle-core: Trace#time and Trace#timeFuture no longer generate timestamped annotations or
silently discard timing information. They now instead generate a BinaryAnnotation containing
the timing information. In order to also get timestamped Annotations for when the operation
began and ended, use in conjunction with Trace#traceLocal. 1c6d5d24

finagle-core: The RetryPolicy companion object is no longer a JavaSingleton.
9ffb3d13
finagle-thrift: The RichClientParam constructors are now all either
deprecated, so to construct it, you must call one of the RichClientParam.apply
methods. 6be5dc48

finagle-core: Deprecate Tracing#record(message, duration) as it does not have the intended
effect and silently discards any duration information in the resulting trace. Instead you should
use either Tracing#recordBinary or a combination of Trace#traceLocal and Trace#time.
1c6d5d24

finagle-core: ClosableService client stack module that prevents the reuse of closed services
when FactoryToService is not set. This is important for clients making use of the newClient
api. c64bea09