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|
#!/usr/bin/env ruby
#require 'bundler'
#Bundler.setup
require 'jaeger/client'
host = ENV['JAEGER_HOST'] || '127.0.0.1'
port = ENV['JAEGER_HOST'] || 6831
tracer1 = Jaeger::Client.build(host: host, port: port.to_i, service_name: 'test-service', flush_interval: 1)
tracer2 = Jaeger::Client.build(host: host, port: port.to_i, service_name: 'downstream-service', flush_interval: 1)
rpc_span = tracer1.start_span(
'receive request',
tags: { 'span.kind' => 'server' }
)
sleep 0.1
rpc_span.log_kv(event: 'woop di doop', count: 5)
sleep 1
async_request_span = tracer1.start_span(
'request async action',
references: [
OpenTracing::Reference.child_of(rpc_span.context)
],
tags: { 'span.kind' => 'producer' }
)
sleep 0.1
async_request_span.finish
rpc_span.finish
sleep 0.5
async_span = tracer2.start_span(
'async span started after rpc span',
references: [
OpenTracing::Reference.follows_from(async_request_span.context)
],
tags: {
'span.kind' => 'consumer',
'peer.service' => 'downstream-service'
}
)
sleep 0.3 # emulate network delay
async_span.finish
sleep 2
puts 'Finished'
|
