github.com/jaegertracing/jaeger

Backend Changes

⛔ Breaking Changes

• The storage implementations no longer write the parentSpanID field to storage (#856). If you are upgrading to this version, you must upgrade query service first!

• Update Dockerfiles to reference executable via ENTRYPOINT (#815) by Zachary DiCesare (@zdicesare)

  It is no longer necessary to specify the binary name when passing flags to containers. For example, to execute the help command of the collector, instead of

  $ docker run -it --rm jaegertracing/jaeger-collector /go/bin/collector-linux help
  

  run

  $ docker run -it --rm jaegertracing/jaeger-collector help
  

• Detect HTTP payload format from Content-Type (#916) by Yuri Shkuro (@yurishkuro)

  When submitting spans in Thrift format to HTTP endpoint /api/traces, the format argument is no longer required, but the Content-Type header must be set to "application/vnd.apache.thrift.binary".

• Change metric tag from "service" to "svc" (#883) by Won Jun Jang (@black-adder)

New Features

• Add Kafka as a Storage Plugin (#862) by David Yeghshatyan (@davit-y)

  The collectors can be configured to write spans to Kafka for further data mining.

• Package static assets inside the query-service binary (#918) by Yuri Shkuro (@yurishkuro)

  It is no longer necessary (but still possible) to pass the path to UI static assets to jaeger-query and jaeger-standalone binaries.

• Replace domain model with Protobuf/gogo-generated model (#856) by Yuri Shkuro (@yurishkuro)

  First step towards switching to Protobuf and gRPC.

• Include HotROD binary in the distributions (#917) by Yuri Shkuro (@yurishkuro)

• Improve HotROD demo (#915) by Yuri Shkuro (@yurishkuro)

• Add DisableAutoDiscovery param to cassandra config (#912) by Bill Westlin (@whistlinwilly)

• Add connCheckTimeout flag to agent (#911) by Henrique Rodrigues (@Henrod)

• Ability to use multiple storage types (#880) by David Yeghshatyan (@davit-y)

Minor Improvements

• [ES storage] Log number of total and failed requests (#902) by Tomasz Adamski (@tmszdmsk)
• [ES storage] Do not log requests on error (#901) by Tomasz Adamski (@tmszdmsk)
• [ES storage] Do not exceed ES _id length limit (#905) by Łukasz Harasimowicz (@harnash) and Tomasz Adamski (@tmszdmsk)
• Add cassandra index filter (#876) by Won Jun Jang (@black-adder)
• Close span writer in standalone (#863) (4 weeks ago) by Pavol Loffay (@pavolloffay)
• Log configuration options for memory storage (#852) (6 weeks ago) by Juraci Paixão Kröhling (@jpkrohling)
• Update collector metric counters to have a name (#886) by Won Jun Jang (@black-adder)
• Add CONTRIBUTING_GUIDELINES.md (#864) by (@PikBot)

Backend Changes

• Add bounds to memory storage (#845) by Juraci Paixão Kröhling (@jpkrohling)
• Add metric for debug traces (#796) by Won Jun Jang (@black-adder)
• Change metrics naming scheme (#776) by Juraci Paixão Kröhling (@jpkrohling)
• Remove ParentSpanID from domain model (#831) by Yuri Shkuro (@yurishkuro)
• Add ability to adjust static sampling probabilities per operation (#827) by Won Jun Jang (@black-adder)
• Support log-level flag on agent (#828) by Won Jun Jang (@black-adder)
• Add healthcheck to standalone (#784) by Eundoo Song (@eundoosong)
• Do not use KeyValue fields directly and use KeyValues as decorator only (#810) by Yuri Shkuro (@yurishkuro)
• Upgrade to go 1.10 (#792) by Prithvi Raj (@vprithvi)
• Do not create Cassandra index if it already exists (#782) by Greg Swift (@gregswift)

UI Changes

• None