Mule meetup #3 material. EA intro and Opentracing integration with Mule

1. 27/03/2018: #MuleSoftMeetup
Melbourne Meetup

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Salesforce and MuleSoft
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API-Led Integration
EA – Mulesoft API Blueprint Readout
Technical Delivery Lead: Wes Herbert
Version: 1.0

4. More Beer and Pizza….
Break

5. by Michael Hyatt, MuleSoft
Tracing Mule flows with Zipkin and Opentracing

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Debugging distributed systems

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Real life debugging
• Often starts with end user latency complaint
• Success of reuse = debugging becomes harder
• Debugging tools?
– log files :’(
– vendor tools
– Log aggregator?

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Design for traceability
• Developers and support are users of the system and their
experience matters!
• Designed for distributed systems tracing
• Cross-technology
• Cross-component
• Auto-discovery and dynamic resolution of dependencies
• Ability to zoom in and out of technologies

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Opentracing and Zipkin
• https://opentracing.io - A vendor-neutral open standard for distributed tracing
• https://zipkin.io - Tracer implementation (one of them)
a=123
a=456
a=0

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Tracing propagation

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Standard for trace propagation, but…
Client Span Server Span
┌──────────────────┐ ┌──────────────────┐
│ │ │ │
│ TraceContext │ Http Request Headers │ TraceContext │
│ ┌──────────────┐ │ ┌───────────────────┐ │ ┌──────────────┐ │
│ │ TraceId │ │ │ X─B3─TraceId │ │ │ TraceId │ │
│ │ │ │ │ │ │ │ │ │
│ │ ParentSpanId │ │ Extract │ X─B3─ParentSpanId │ Inject │ │ ParentSpanId │ │
│ │ ├─┼─────────>│ ├────────┼>│ │ │
│ │ SpanId │ │ │ X─B3─SpanId │ │ │ SpanId │ │
│ │ │ │ │ │ │ │ │ │
│ │ Sampled │ │ │ X─B3─Sampled │ │ │ Sampled │ │
│ └──────────────┘ │ └───────────────────┘ │ └──────────────┘ │
│ │ │ │
└──────────────────┘ └──────────────────┘https://github.com/openzipkin/b3-propagation

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Flows and activities are Spans. Callers and callees are
parents and children. Spans are propertied from outside
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13. Demo time!

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