Add travis build and coverage #1
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yurishkuro
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Aug 18, 2023
## Which problem is this PR solving? Resolves #4680 ## Description of the changes - Add an opt-in option `--query.enable-tracing` to enable tracing for the jaeger-query component. - The jaeger all-in-one component does not expose this flag since traces are emitted to port 4317 by default, which all-in-one listens on. ## How was this change tested? ``` # Run jaeger-query component with tracing enabled and verify that the connection errors are appearing in stdout. $ SPAN_STORAGE_TYPE=memory go run -tags ui ./cmd/query/main.go --query.enable-tracing ... {"level":"info","ts":1692363754.9049716,"caller":"grpc/clientconn.go:1301","msg":"[core][Channel #1 SubChannel #2] Subchannel Connectivity change to CONNECTING","system":"grpc","grpc_log":true} {"level":"info","ts":1692363754.9050152,"caller":"grpc/clientconn.go:1414","msg":"[core][Channel #1 SubChannel #2] Subchannel picks a new address \"localhost:4317\" to connect","system":"grpc","grpc_log":true} {"level":"warn","ts":1692363754.9058733,"caller":"grpc/clientconn.go:1476","msg":"[core][Channel #1 SubChannel #2] grpc: addrConn.createTransport failed to connect to {Addr: \"localhost:4317\", ServerName: \"localhost:4317\", }. Err: connection error: desc = \"transport: Error while dialing: dial tcp 127.0.0.1:4317: connect: connection refused\"","system":"grpc","grpc_log":true} {"level":"info","ts":1692363754.9067123,"caller":"grpc/clientconn.go:1303","msg":"[core][Channel #1 SubChannel #2] Subchannel Connectivity change to TRANSIENT_FAILURE, last error: connection error: desc = \"transport: Error while dialing: dial tcp 127.0.0.1:4317: connect: connection refused\"","system":"grpc","grpc_log":true} ... # Run jaeger-query component with tracing disabled and verify that the connection errors no longer appear. # Of course, we can't see traces in Jaeger UI because there's nothing to receive the traces. $ SPAN_STORAGE_TYPE=memory go run -tags ui ./cmd/query/main.go # Start an all-in-one instance just as a quick and dirty way to bring up an in-memory jaeger stack to # receive traces from jaeger-query $ make run-all-in-one # Run jaeger-query as a separate component, listening on different ports to all-in-one to avoid port binding collisions. $ SPAN_STORAGE_TYPE=memory go run -tags ui ./cmd/query/main.go --query.enable-tracing --query.grpc-server.host-port :17685 --query.http-server.host-port :17686 --admin.http.host-port :17687 # Open localhost:17686 in a browser and refresh a few times to emit traces to jaeger all-in-one. ``` Confirmed that `jaeger-query` is visible and contains traces: <img width="1572" alt="Screenshot 2023-08-18 at 11 45 26 pm" src="https://github.com/jaegertracing/jaeger/assets/26584478/a348e804-6d37-49f9-9d9f-f73854e9b6bc"> ## Checklist - [x] I have read https://github.com/jaegertracing/jaeger/blob/master/CONTRIBUTING_GUIDELINES.md - [x] I have signed all commits ~- [] I have added unit tests for the new functionality~ - [x] I have run lint and test steps successfully - for `jaeger`: `make lint test` - for `jaeger-ui`: `yarn lint` and `yarn test` --------- Signed-off-by: albertteoh <see.kwang.teoh@gmail.com>
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