Zipkin is a distributed tracing system that helps us gather timing data for all the disparate services at Twitter.
See http://twitter.github.com/zipkin
TraceId, SpanId and ParentId are now UUID generated.
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git clone the following:
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Then, git checkout uuid-work branch, in all the 4 projects above.
- compile order twitter-util-uuid, twitter-finagle-uuid, twitter-ostrich-uuid, twitter-server-uuid
- switch to uuid-work branch here and compile
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Once everything compiles, you can run ./start-example.sh which will generate samples for sql-lite with UUID traces!
- You may run this with Cassandra as well by copying zipkin-example/src/main/scala/com/twitter/zipkin/example/Main.scala.Cassie to zipkin-example/src/main/scala/com/twitter/zipkin/example/Main.scala
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Fix build scripts to run without switching to the branch (uuid-work)
- Make release versions for twitter-util-uuid, twitter-finagle-uuid, twitter-ostrich-uuid and twitter-server-uuid so they work with twitter-zipkin-uuid
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Tests
- Need help fixing all the tests.
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Suggested development changes
- TraceId, SpanId and ParentId should be type aliased to make future changes simple
- Rich implicits might be a better way to port than current port. But I am not a scala expert.
Check out the #zipkin IRC channel on chat.freenode.com to see if any developers are there for questions or live debugging tips. Otherwise, there are two mailing lists you can use to get in touch with other users and developers.
Users: https://groups.google.com/group/zipkin-user
Developers: https://groups.google.com/group/zipkin-dev
Noticed a bug? https://github.com/twitter/zipkin/issues
See CONTRIBUTING.md for guidelines.
Areas where we'd love to see contributions:
- adding tracing to more libraries and protocols
- interesting reports generated with Hadoop from the trace data
- extending collector to support more transports and storage systems
- trace data visualizations in the web UI