Error creating processor "memory_limiter" on clean install

[andrzej-stencel]

Helm chart: opentelemetry-collector-0.4.3 (latest at the time of writing)

When installing the chart with:

helm install otc open-telemetry/opentelemetry-collector

the installation succeeds, but the OTC pod crashes with the following error:

Error: cannot setup pipelines: cannot build pipelines: error creating processor "memory_limiter" in pipeline "metrics": checkInterval must be greater than zero

See full OTC pod logs

2021-03-09T12:37:54.144Z	info	service/service.go:411	Starting OpenTelemetry Collector...	{"Version": "v0.20.0", "GitHash": "a10a1a7a", "NumCPU": 8}
2021-03-09T12:37:54.147Z	info	service/service.go:592	Using memory ballast	{"MiBs": 204}
2021-03-09T12:37:54.147Z	info	service/service.go:255	Setting up own telemetry...
2021-03-09T12:37:54.148Z	info	service/telemetry.go:102	Serving Prometheus metrics	{"address": "0.0.0.0:8888", "level": 0, "service.instance.id": "49b6c5c0-07a7-41c2-9a92-b5e01a14b86b"}
2021-03-09T12:37:54.149Z	info	service/service.go:292	Loading configuration...
2021-03-09T12:37:54.149Z	info	service/service.go:303	Applying configuration...
2021-03-09T12:37:54.149Z	info	service/service.go:324	Starting extensions...
2021-03-09T12:37:54.149Z	info	builder/extensions_builder.go:53	Extension is starting...	{"component_kind": "extension", "component_type": "health_check", "component_name": "health_check"}
2021-03-09T12:37:54.149Z	info	healthcheckextension/healthcheckextension.go:40	Starting health_check extension	{"component_kind": "extension", "component_type": "health_check", "component_name": "health_check", "config": {"TypeVal":"health_check","NameVal":"health_check","Port":13133}}
2021-03-09T12:37:54.149Z	info	builder/extensions_builder.go:59	Extension started.	{"component_kind": "extension", "component_type": "health_check", "component_name": "health_check"}
2021-03-09T12:37:54.149Z	info	builder/exporters_builder.go:306	Exporter is enabled.	{"component_kind": "exporter", "exporter": "logging"}
2021-03-09T12:37:54.150Z	info	service/service.go:339	Starting exporters...
2021-03-09T12:37:54.150Z	info	builder/exporters_builder.go:92	Exporter is starting...	{"component_kind": "exporter", "component_type": "logging", "component_name": "logging"}
2021-03-09T12:37:54.150Z	info	builder/exporters_builder.go:97	Exporter started.	{"component_kind": "exporter", "component_type": "logging", "component_name": "logging"}
Error: cannot setup pipelines: cannot build pipelines: error creating processor "memory_limiter" in pipeline "metrics": checkInterval must be greater than zero
2021/03/09 12:37:54 application run finished with error: cannot setup pipelines: cannot build pipelines: error creating processor "memory_limiter" in pipeline "metrics": checkInterval must be greater than zero

Here's the relevant part of the configmap, as installed by Helm:

kubectl describe configmap otc-opentelemetry-collector-agent

# ...
processors:
    batch: {}
    memory_limiter: null
# ...

[dmitryax]

Can reproduce on the newest helm version staring from 3.5.0. The chart works as expected on helm version 3.4.2 and earlier.

I'm working on a fix...