[Flaky Test]: TestOtelFileProcessing – there should be exported logs by now

[rdner]

Failing test case

TestOtelFileProcessing

Error message

there should be exported logs by now

Build

https://buildkite.com/elastic/elastic-agent/builds/8506#018f0d68-b5e4-46e6-93a8-91612f46c4e8

OS

Linux

Stacktrace and notes

=== RUN   TestOtelFileProcessing
    fetcher.go:95: Using existing artifact elastic-agent-8.14.0-SNAPSHOT-linux-x86_64.tar.gz
    fixture.go:281: Extracting artifact elastic-agent-8.14.0-SNAPSHOT-linux-x86_64.tar.gz to /tmp/TestOtelFileProcessing3713650306/002
    fixture.go:299: Completed extraction of artifact elastic-agent-8.14.0-SNAPSHOT-linux-x86_64.tar.gz to /tmp/TestOtelFileProcessing3713650306/002
    fixture.go:957: All component specifications where removed
    fixture.go:998: Placed component specifications: fake, fake-shipper
    log.go:85: Starting in otel mode
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.019Z","log.origin":{"file.name":"cmd/run.go","file.line":180},"message":"Elastic Agent started","log":{"source":"elastic-agent"},"process.pid":18312,"agent.version":"8.14.0","agent.unprivileged":true,"ecs.version":"1.6.0"}
    log.go:85: 2024-04-24T00:32:50.028Z	info	[email protected]/service.go:99	Setting up own telemetry...
    log.go:85: 2024-04-24T00:32:50.028Z	info	[email protected]/telemetry.go:103	Serving metrics	{"address": ":8888", "level": "Normal"}
    log.go:85: 2024-04-24T00:32:50.034Z	info	[email protected]/service.go:166	Starting /tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/elastic-agent...	{"Version": "8.14.0", "NumCPU": 2}
    log.go:85: 2024-04-24T00:32:50.034Z	info	extensions/extensions.go:34	Starting extensions...
    fixture.go:656: >> running binary with: [/tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/elastic-agent otel validate --config /tmp/TestOtelFileProcessing3713650306/001/otel-valid.yml --feature-gates foo.bar]
    log.go:85: 2024-04-24T00:32:50.037Z	info	adapter/receiver.go:45	Starting stanza receiver	{"kind": "receiver", "name": "filelog", "data_type": "logs"}
    log.go:85: 2024-04-24T00:32:50.039Z	info	[email protected]/service.go:192	Everything is ready. Begin running and processing data.
    log.go:85: 2024-04-24T00:32:50.040Z	warn	localhostgate/featuregate.go:63	The default endpoints for all servers in components will change to use localhost instead of 0.0.0.0 in a future version. Use the feature gate to preview the new default.	{"feature gate ID": "component.UseLocalHostAsDefaultHost"}
    log.go:85: 2024-04-24T00:32:50.040Z	error	[email protected]/collector.go:278	Asynchronous error received, terminating process	{"error": "listen tcp :8888: bind: address already in use"}
    log.go:85: go.opentelemetry.io/collector/otelcol.(*Collector).Run
    log.go:85: /go/pkg/mod/go.opentelemetry.io/collector/[email protected]/collector.go:278
    log.go:85: github.com/elastic/elastic-agent/internal/pkg/otel.Run
    log.go:85: /go/src/github.com/elastic/elastic-agent/internal/pkg/otel/run.go:47
    log.go:85: github.com/elastic/elastic-agent/internal/pkg/agent/cmd.runCollector.func3
    log.go:85: /go/src/github.com/elastic/elastic-agent/internal/pkg/agent/cmd/otel.go:95
    log.go:85: 2024-04-24T00:32:50.040Z	info	[email protected]/service.go:229	Starting shutdown...
    log.go:85: 2024-04-24T00:32:50.040Z	info	adapter/receiver.go:140	Stopping stanza receiver	{"kind": "receiver", "name": "filelog", "data_type": "logs"}
    log.go:85: 2024-04-24T00:32:50.055Z	info	extensions/extensions.go:59	Stopping extensions...
    log.go:85: 2024-04-24T00:32:50.055Z	info	[email protected]/service.go:243	Shutdown complete.
    fixture.go:656: >> running binary with: [/tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/elastic-agent otel validate --config /tmp/TestOtelFileProcessing3713650306/001/otel-invalid.yml]
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.317Z","log.origin":{"file.name":"upgrade/rollback.go","file.line":156},"message":"Starting upgrade watcher","log":{"source":"elastic-agent"},"path":"/tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/elastic-agent","args":["/tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/elastic-agent","watch","--path.config","/tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64","--path.home","/tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64"],"env":[],"dir":"","ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.318Z","log.origin":{"file.name":"upgrade/rollback.go","file.line":163},"message":"Upgrade Watcher invoked","log":{"source":"elastic-agent"},"agent.upgrade.watcher.process.pid":18338,"agent.process.pid":18312,"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.318Z","log.origin":{"file.name":"upgrade/rollback.go","file.line":151},"message":"releasing watcher 18338","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.318Z","log.origin":{"file.name":"cmd/run.go","file.line":264},"message":"APM instrumentation disabled","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.319Z","log.origin":{"file.name":"application/application.go","file.line":65},"message":"Gathered system information","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.323Z","log.origin":{"file.name":"application/application.go","file.line":71},"message":"Detected available inputs and outputs","log":{"source":"elastic-agent"},"inputs":["fake","fake-apm","fake-isolated-units"],"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.323Z","log.origin":{"file.name":"capabilities/capabilities.go","file.line":48},"message":"Capabilities file not found in /tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/capabilities.yml","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.324Z","log.origin":{"file.name":"application/application.go","file.line":77},"message":"Determined allowed capabilities","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.324Z","log.origin":{"file.name":"application/application.go","file.line":92},"message":"Loading baseline config from /tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/elastic-agent.yml","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.836Z","log.logger":"control","log.origin":{"file.name":"server/server.go","file.line":88},"message":"GRPC control socket listening at unix:///tmp/elastic-agent/pgu_7Fua0UpuvurzhelwZU8EgJd4wd5X.sock","log":{"source":"elastic-agent"},"address":"unix:///tmp/elastic-agent/pgu_7Fua0UpuvurzhelwZU8EgJd4wd5X.sock","ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.838Z","log.origin":{"file.name":"runtime/manager.go","file.line":213},"message":"Starting grpc control protocol listener on port 6789 with max_message_size 104857600","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.839Z","log.origin":{"file.name":"upgrade/upgrade.go","file.line":123},"message":"Source URI changed from \"https://artifacts.elastic.co/downloads/\" to \"https://artifacts.elastic.co/downloads/\"","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.839Z","log.origin":{"file.name":"reload/reload.go","file.line":49},"message":"Starting server","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.840Z","log.logger":"api","log.origin":{"file.name":"api/server.go","file.line":85},"message":"Starting stats endpoint","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.840Z","log.logger":"api","log.origin":{"file.name":"api/server.go","file.line":87},"message":"Metrics endpoint listening on: /tmp/elastic-agent/d7fe3e1b48cc0f2dafbf6995409671d83965889717bfb843c470966c984184e4.sock (configured: unix:///tmp/elastic-agent/d7fe3e1b48cc0f2dafbf6995409671d83965889717bfb843c470966c984184e4.sock)","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.840Z","log.logger":"composable.providers.docker","log.origin":{"file.name":"docker/docker.go","file.line":44},"message":"Docker provider skipped, unable to connect: Cannot connect to the Docker daemon at unix:///var/run/docker.sock. Is the docker daemon running?","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:50.942Z","log.origin":{"file.name":"coordinator/coordinator.go","file.line":1181},"message":"Updating running component model","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:51.142Z","log.origin":{"file.name":"coordinator/coordinator.go","file.line":1382},"message":"component model updated","log":{"source":"elastic-agent"},"changes":{"components":{},"outputs":{}},"ecs.version":"1.6.0"}
    log.go:96: {"log.level":"info","@timestamp":"2024-04-24T00:32:51.142Z","log.origin":{"file.name":"coordinator/coordinator.go","file.line":1181},"message":"Updating running component model","log":{"source":"elastic-agent"},"ecs.version":"1.6.0"}
    fixture.go:656: >> running binary with: [/tmp/TestOtelFileProcessing3713650306/002/elastic-agent-8.14.0-SNAPSHOT-linux-x86_64/elastic-agent status --output json]
    otel_test.go:170: 
        	Error Trace:	/home/ubuntu/agent/testing/integration/otel_test.go:170
        	Error:      	Condition never satisfied
        	Test:       	TestOtelFileProcessing
        	Messages:   	there should be exported logs by now
--- FAIL: TestOtelFileProcessing (191.29s)

[elasticmachine]

Pinging @elastic/elastic-agent (Team:Elastic-Agent)

[rdner]

Another failure https://buildkite.com/elastic/elastic-agent/builds/8519#018f128f-49c0-46c4-9113-93810729321a

[michalpristas]

{"error": "listen tcp :8888: bind: address already in use"}

probably valid error, setup changed a bit with update to 0.99

[rdner]

Another failure https://buildkite.com/elastic/elastic-agent/builds/8565#018f2af7-d371-4236-a4dc-9619a8c41020

[rdner]

One more failure on main https://buildkite.com/elastic/elastic-agent/builds/8565#018f2af7-d371-4236-a4dc-9619a8c41020

[michalpristas]

related to this issue here: open-telemetry/opentelemetry-collector#10031
cause by pull open-telemetry/opentelemetry-collector#9257

[ycombinator]

Are we sure this test is failing due to open-telemetry/opentelemetry-collector#10031? I just built Agent from main, created the same OTel configuration files that's are being used by this test, and manually ran elastic-agent otel validate against those configuration files as expected.

$ ./elastic-agent version --binary-only
Binary: 8.15.0-SNAPSHOT (build: 3b0214f1e7e16124e7b1c5689e65632f749eedf4 at 2024-04-30 11:32:31 +0000 UTC)
$ cat /tmp/otel-processing.yaml
receivers:
  filelog:
    include: [ "/var/log/system.log", "/var/log/syslog"  ]
    start_at: beginning

exporters:
  file:
    path: /tmp/testfileprocessing.json

service:
  pipelines:
    logs:
      receivers: [filelog]
      exporters:
        - file
$ ./elastic-agent otel validate --config /tmp/otel-processing.yaml
2024-04-30T04:37:20.272-0700	info	[email protected]/service.go:99	Setting up own telemetry...
2024-04-30T04:37:20.272-0700	info	[email protected]/telemetry.go:103	Serving metrics	{"address": ":8888", "level": "Normal"}
$ echo $?
0
$ cat /tmp/otel-invalid.yaml
receivers:
  filelog:
    include: [ "/var/log/system.log", "/var/log/syslog"  ]
    start_at: beginning

exporters:
  file:
    path: /tmp/testfileprocessing.json

service:
  pipelines:
    logs:
      receivers: [filelog]
      processors: [nonexistingprocessor]
      exporters:
        - file
$ ./elastic-agent otel validate --config /tmp/otel-invalid.yaml
service::pipelines::logs: references processor "nonexistingprocessor" which is not configured
$ echo $?
1

[michalpristas]

it works locally on my end as well. my take on this is that machines on CIs are slower and it takes a bit of time to release bound port. in the meantime another process is starting. we've seen something like this before.

it started appearing just after i upgraded versions from 97

i also needed to change check for validate because in version 0.97 for valid config output is empty. for 97+ it shows these 3 lines you shared as well

[ycombinator]

my take on this is that machines on CIs are slower and it takes a bit of time to release bound port. in the meantime another process is starting. we've seen something like this before.

Thanks, I was also thinking it must be something along these lines, unfortunately 😞.

Given that, it would be tempting to add a bit of a sleep or something in the test between the two validate calls but I don't think that's the right solution, at least not for now. Since we aren't really depending on anything specific from OTel versions > 0.97 at the moment, pinning the OTel dependencies to 0.97, as you have done in #4638, is the right solution, at least for now.