[checkoutservice] add basic metric support #339

fatsheep9146 · 2022-08-23T14:03:27Z

Signed-off-by: Ziqi Zhao [email protected]

related #69.

Changes

Try to enhance checkoutservice with metric support.

Add basic runtime metrics for checkoutservice, using runtime metric instrumentation library.

Here is the metrics example, process_runtime_go_goroutines

Following paragraph is the earlier content of this pull request, but these efforts are blocked by open-telemetry/opentelemetry-go-contrib#2700, so remove them for now.

According to https://github.com/open-telemetry/opentelemetry-specification/blob/main/specification/metrics/semantic_conventions/rpc.md and as the first try, I first add a metrics 'rpc.server.duration' for unary service.

~~the metrics with four label~~
~~- rpc.system~~
~~- rpc.service~~
~~- rpc.method~~
~~- rpc.grpc.status_code~~

I made some experiments with new metric, I stop 'shipservice' manually to mock the fail down of shipservice and restart it after a few minutes, and draw a graph indicates the success ratio of checkout service.

~~the query I used is sum(rate(rpc_server_duration_count{rpc_grpc_status_code="0"}[1m])) / sum(rate(rpc_server_duration_count[1m]))~~

~~and the graph is like following with a drop in the middle~~

src/checkoutservice/main.go

src/checkoutservice/middleware.go

reyang

#339 (comment)

github-actions · 2022-09-01T03:57:41Z

This PR was marked stale due to lack of activity. It will be closed in 7 days.

fatsheep9146 · 2022-09-01T04:47:08Z

#339 (comment)

open-telemetry/opentelemetry-go-contrib#2700

@reyang @austinlparker

I also started to add metrics support for grpc instrumentation library. Should we wait until this pr merged and then update checkout service's library?

github-actions · 2022-09-09T03:55:53Z

This PR was marked stale due to lack of activity. It will be closed in 7 days.

fatsheep9146 · 2022-09-09T04:54:13Z

This PR was marked stale due to lack of activity. It will be closed in 7 days.

Related pull requests open-telemetry/opentelemetry-go-contrib#2700 are still being reviewed, not stale.

github-actions · 2022-09-17T03:52:37Z

This PR was marked stale due to lack of activity. It will be closed in 7 days.

github-actions · 2022-09-26T04:08:09Z

This PR was marked stale due to lack of activity. It will be closed in 7 days.

cartersocha · 2022-09-29T16:18:47Z

hey @fatsheep9146 lets try to push this forward for the hero scenario asap. Our development freeze starts October 10th.

All we need in the checkout service is a gauge on the cache size + instrumentation libraries

cartersocha · 2022-09-29T16:19:05Z

@austinlparker, @julianocosta89, @puckpuck fyi lets try to push this forward

docker-compose.yml

Signed-off-by: Ziqi Zhao <[email protected]>

fatsheep9146 · 2022-09-30T09:42:44Z

I refract this pr to use the new version of golang metric sdk and using runtime instrumentation library. Please help review this =D
@cartersocha @austinlparker @puckpuck @julianocosta89

docker-compose.yml

PR has been pivoted and needs a fresh review

julianocosta89

I wasn't able to test this out.

Building the service is failing with the following message:

=> ERROR [builder 10/10] RUN go build -o /go/bin/checkoutservice/ ./                                                                    6.1s 
------                                                                                                                                        
 > [builder 10/10] RUN go build -o /go/bin/checkoutservice/ ./:                                                                               
#0 3.911 # go.opentelemetry.io/otel/sdk/metric/metricdata                                                                                     
#0 3.911 /go/pkg/mod/go.opentelemetry.io/otel/sdk/[email protected]/metricdata/data.go:62:14: syntax error: unexpected int64, expecting ]        
#0 3.911 /go/pkg/mod/go.opentelemetry.io/otel/sdk/[email protected]/metricdata/data.go:67:15: syntax error: unexpected ), expecting type         
#0 3.911 /go/pkg/mod/go.opentelemetry.io/otel/sdk/[email protected]/metricdata/data.go:70:12: syntax error: unexpected int64, expecting ]        
#0 3.911 /go/pkg/mod/go.opentelemetry.io/otel/sdk/[email protected]/metricdata/data.go:80:13: syntax error: unexpected ), expecting type
#0 3.911 /go/pkg/mod/go.opentelemetry.io/otel/sdk/[email protected]/metricdata/data.go:83:18: syntax error: unexpected int64, expecting ]
#0 3.911 note: module requires Go 1.18
------
failed to solve: executor failed running [/bin/sh -c go build -o /go/bin/checkoutservice/ ./]: exit code: 2

I've tried updating the go version within the Dockerfileand go.mod, but then the build failed with the following:

=> ERROR [builder  9/10] RUN protoc -I ./proto/ ./proto/demo.proto --go_out=./ --go-grpc_out=./                                         0.4s 
------                                                                                                                                        
 > [builder  9/10] RUN protoc -I ./proto/ ./proto/demo.proto --go_out=./ --go-grpc_out=./:
#0 0.412 protoc-gen-go: program not found or is not executable
#0 0.412 Please specify a program using absolute path or make sure the program is available in your PATH system variable
#0 0.412 --go_out: protoc-gen-go: Plugin failed with status code 1.
------
failed to solve: executor failed running [/bin/sh -c protoc -I ./proto/ ./proto/demo.proto --go_out=./ --go-grpc_out=./]: exit code: 1

austinlparker · 2022-10-03T15:58:27Z

I'm investigating this - looks like part of it is that the go version in the container isn't 1.18+

julianocosta89 · 2022-10-03T16:08:35Z

@austinlparker yes, but when I tried updating the go version within the Dockerfile and go.mod, the build failed with the following:

=> ERROR [builder  9/10] RUN protoc -I ./proto/ ./proto/demo.proto --go_out=./ --go-grpc_out=./                                                       0.6s
------
 > [builder  9/10] RUN protoc -I ./proto/ ./proto/demo.proto --go_out=./ --go-grpc_out=./:
#0 0.552 protoc-gen-go: program not found or is not executable
#0 0.552 Please specify a program using absolute path or make sure the program is available in your PATH system variable
#0 0.553 --go_out: protoc-gen-go: Plugin failed with status code 1.
------
failed to solve: executor failed running [/bin/sh -c protoc -I ./proto/ ./proto/demo.proto --go_out=./ --go-grpc_out=./]: exit code: 1

austinlparker · 2022-10-03T16:26:58Z

yeah, I think we've encountered a dependency hell loop. we may have to update our go stuff to use google.golang.org/protobuf rather than protoc-gen-go so we can break into 1.18+... lemme see if that's an easy upgrade

austinlparker · 2022-10-03T16:37:26Z

@fatsheep9146 it looks like in order to take newer versions of otel-go we will need to upgrade all go services to support 1.18+. I believe we will also need to update to the newer protobuf package. Can you take care of that for this PR as well?

fatsheep9146 · 2022-10-04T01:01:52Z

@fatsheep9146 it looks like in order to take newer versions of otel-go we will need to upgrade all go services to support 1.18+. I believe we will also need to update to the newer protobuf package. Can you take care of that for this PR as well?

Yes, I already found this problem and started doing it. I also found that in 1.18, go get can would not install the package, so the dockerfile should also be updated. @austinlparker

austinlparker · 2022-10-04T01:03:39Z

@fatsheep9146 it looks like in order to take newer versions of otel-go we will need to upgrade all go services to support 1.18+. I believe we will also need to update to the newer protobuf package. Can you take care of that for this PR as well?

Yes, I already found this problem and started doing it. I also found that in 1.18, go get can would not install the package, so the dockerfile should also be updated. @austinlparker

Yeah - I would just upgrade to 1.19 across the board, as well as switch to the newer Google protobuf package. Maybe best to do that in a new PR just for cleanliness sake.

fatsheep9146 · 2022-10-04T01:41:15Z

@fatsheep9146 it looks like in order to take newer versions of otel-go we will need to upgrade all go services to support 1.18+. I believe we will also need to update to the newer protobuf package. Can you take care of that for this PR as well?

Yes, I already found this problem and started doing it. I also found that in 1.18, go get can would not install the package, so the dockerfile should also be updated. @austinlparker

Yeah - I would just upgrade to 1.19 across the board, as well as switch to the newer Google protobuf package. Maybe best to do that in a new PR just for cleanliness sake.

Ok, I will first submit a new pull request to update the dockerfile and protobuf version. After that pr is merged I will rebase this pr then.

julianocosta89 · 2022-10-06T21:57:09Z

Hello all,

I've just sent a PR with the required update: #406

Once, this PR is merged we can simply rebase and merge this one.
Already tested locally and it is working 🥳

cartersocha · 2022-10-07T00:50:38Z

@fatsheep9146 the go version is now updated! thanks @julianocosta89

fatsheep9146 · 2022-10-07T01:30:22Z

@fatsheep9146 the go version is now updated! thanks @julianocosta89

I also tested it locally, it worked, thanks! @cartersocha @julianocosta89

julianocosta89

LGTM

julianocosta89 · 2022-10-07T19:31:14Z

@reyang anything missing in here?

reyang · 2022-10-07T19:32:32Z

@reyang anything missing in here?

Let me take a quick look.

reyang

LGTM.

reyang · 2022-10-07T19:34:51Z

I don't know if this needs a changelog entry or not. Not a blocker though.

cartersocha · 2022-10-07T19:37:14Z

I'll cover the changelog update in a separate PR to move this forward

Signed-off-by: Ziqi Zhao <[email protected]> Signed-off-by: Ziqi Zhao <[email protected]> Co-authored-by: Carter Socha <[email protected]> Co-authored-by: Juliano Costa <[email protected]>

fatsheep9146 requested a review from a team August 23, 2022 14:03

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[checkoutservice] add basic runtime metric

b4b653b

Signed-off-by: Ziqi Zhao <[email protected]>

fatsheep9146 force-pushed the checkoutservice-metrics-enhancement branch from 770cd2f to b4b653b Compare September 30, 2022 09:31

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cartersocha requested a review from reyang September 30, 2022 17:14

Merge branch 'main' into checkoutservice-metrics-enhancement

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julianocosta89 mentioned this pull request Oct 6, 2022

Update go version to use go otel metrics #406

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cartersocha added 2 commits October 6, 2022 17:50

Merge branch 'main' into checkoutservice-metrics-enhancement

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Merge branch 'main' into checkoutservice-metrics-enhancement

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Merge branch 'main' into checkoutservice-metrics-enhancement

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cartersocha merged commit ca30e16 into open-telemetry:main Oct 7, 2022

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[checkoutservice] add basic metric support #339

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