Relase 1.18.0

Backend Changes

Breaking Changes

• Remove Tchannel between agent and collector (#2115, #2112, @pavolloffay)

  Remove Tchannel port (14267) from collector and Tchannel reporter from agent.

  These flags were removed from agent:

  --collector.host-port
  --reporter.tchannel.discovery.conn-check-timeout
  --reporter.tchannel.discovery.min-peers
  --reporter.tchannel.host-port
  --reporter.tchannel.report-timeout
  

  These flags were removed from collector:

  --collector.port
  

• Normalize CLI flags to use host:port addresses (#1827, @annanay25)

  Flags previously accepting listen addresses in any other format have been deprecated:

  • collector.port is superseded by collector.tchan-server.host-port
  • collector.http-port is superseded by collector.http-server.host-port
  • collector.grpc-port is superseded by collector.grpc-server.host-port
  • collector.zipkin.http-port is superseded by collector.zipkin.host-port
  • admin-http-port is superseded by admin.http.host-port

New Features

• Add grpc storage plugin OTEL exporter (#2229, @pavolloffay)
• Add OTEL ingester component (#2225, @pavolloffay)
• Add Kafka OTEL receiver/ingester (#2221, @pavolloffay)
• Create Jaeger OTEL agent component (#2216, @pavolloffay)
• Merge hardcoded/default configuration with OTEL config file (#2211, @pavolloffay)
• Support periodic refresh of sampling strategies (#2188, @defool)
• Add Elasticsearch OTEL exporter (#2140, @pavolloffay)
• Add Cassandra OTEL exporter (#2139, @pavolloffay)
• Add Kafka OTEL storage exporter (#2135, @pavolloffay)
• Clock skew config (#2119, @joe-elliott)
• Introduce OpenTelemetry collector (#2086, @pavolloffay)
• Support regex tags search for Elasticseach backend (#2049, @annanay25)

Bug fixes, Minor Improvements

• Do not skip service/operation indexing for firehose spans (#2242, @yurishkuro)
• Add build information to OTEL binaries (#2237, @pavolloffay)
• Enable service default sampling param (#2230, @defool)
• Add Jaeger OTEL agent to docker image upload (#2227, @ning2008wisc)
• Support adding process tags in OTEL via env variable (#2220, @pavolloffay)
• Bump OTEL version and update exporters to use new API (#2196, @pavolloffay)
• Support sampling startegies file flag in OTEL collector (#2195, @pavolloffay)
• Add zipkin receiver to OTEL collector (#2181, @pavolloffay)
• Add Dockerfile for OTEL collector and publish latest tag (#2167, @pavolloffay)
• Run OTEL collector without configuration file (#2148, @pavolloffay)
• Update gocql to support AWS MCS (#2133, @johanneswuerbach)
• Return appropriate gRPC errors/codes to indicate request status (#2132, @yurishkuro)
• Remove tchannel port from dockerfile and test (#2118, @pavolloffay)
• Remove tchannel between agent and collector (#2115, @pavolloffay)
• Move all tchannel packages to a single top level package (#2112, @pavolloffay)

UI Changes

• UI pinned to version 1.9.0. The changelog is available here v1.9.0