signalfx/splunk-otel-collector v0.119.0 on GitHub

This Splunk OpenTelemetry Collector release includes changes from the opentelemetry-collector v0.119.0 and the opentelemetry-collector-contrib v0.119.0 releases where appropriate.

🚩 Deprecations 🚩

(Contrib) signalfxreceiver: access_token_passthrough is deprecated (#37575)
Please use include_metadata in the receiver instead and add the following config to the batch processor:
```
batch:
  metadata_keys: [X-Sf-Token]
```

🛑 Breaking changes 🛑

(Splunk) Deprecated ASP.NET and .NET SignalFx monitors are removed (#5868)
(Core) exporters: Rename exporter span signal specific attributes (e.g. "sent_spans" / "send_failed_span") to "items.sent" / "items.failed". (#12165)
(Core) exporters: Change exporter ID to be a Span level attribute instead on each event. (#12164)

💡 Enhancements 💡

(Core) configtls: Allow users to mention their preferred curve types for ECDHE handshake (#12174)
(Contrib) processor/transformprocessor: Add support for flat configuration style. (#29017)
The flat configuration style allows users to configure statements by providing a list of statements instead of a
structured configuration map. The statement's context is expressed by adding the context's name prefix to path names,
which are used to infer and to select the appropriate context for the statement.
(Contrib) receiver/httpcheck: Added support for specifying multiple endpoints in the httpcheckreceiver using the endpoints field. Users can now monitor multiple URLs with a single configuration block, improving flexibility and reducing redundancy. (#37121)
(Contrib) processor/resourcedetection: Expose additional configuration parameters for the AWS metadata client used by the EC2 detector (#35936)
In some cases, you might need to change the behavior of the AWS metadata client from the standard retryer
By default, the client retries 3 times with a max backoff delay of 20s.
We offer a limited set of options to override those defaults specifically, such that you can set the client to retry 10 times, for up to 5 minutes, for example:
```
processors:
  resourcedetection/ec2:
    detectors: ["ec2"]
    ec2:
      max_attempts: 10
      max_backoff: 5m
```
(Contrib) processor/cumulativetodelta: Add metric type filter for cumulativetodelta processor (#33673)
(Contrib) processor/resourcedetection: Add fail_on_missing_metadata option on EC2 detector (#35936)
If the EC2 metadata endpoint is unavailable, the EC2 detector by default ignores the error.
By setting fail_on_missing_metadata to true on the detector, the user will now trigger an error explicitly,
which will stop the collector from starting.
(Contrib) processor/resourcedetection: The gcp resource detector will now detect resource attributes identifying a GCE instance's managed instance group. (#36142)
(Contrib) receiver/jaeger: Log the endpoints of different servers started by jaegerreceiver (#36961)
This change logs the endpoints of different servers started by jaegerreceiver. It simplifies debugging by ensuring log messages match configuration settings.
(Contrib) receiver/hostmetrics/process: Added support for tracking process.uptime (#36667)
(Contrib) receiver/googlecloudpubsub: Added support for encoding extensions. (#37109)
(Contrib) processor/transform: Replace parser collection implementations with ottl.ParserCollection and add initial support for expressing statement's context via path names. (#29017)
(Contrib) receiver/prometheus: Add receiver.prometheusreceiver.UseCollectorStartTimeFallback featuregate for the start time metric adjuster to use the collector start time as an approximation of process start time as a fallback. (#36364)
(Contrib) processor/tailsampling: Reworked the consume traces, sampling decision, and policy loading paths to improve performance and readability (#37560)

🧰 Bug fixes 🧰

(Core) exporters: Fix bug that the exporter with new batcher may have been marked as non mutation. (#12239)
Only affects users that manually turned on exporter.UsePullingBasedExporterQueueBatcher featuregate.
(Core) exporters: Fix MergeSplit issue that ignores the initial message size. (#12257)
(Core) service-telemetry: pass the missing async error channel into service telemetry settings (#11417)
(Contrib) receiver/filelog: Fix issue where flushed tokens could be truncated. (#35042)
(Contrib) connector/routing: Fix config validation with context other than resource (#37410)
(Contrib) processor/k8sattributes: Wait for the other informers to complete their initial sync before starting the pod informers (#37056)
(Contrib) processor/metricsgeneration: Generated metric name may not match metric being scaled (#37474)
(Contrib) connector/routing: The connector splits the original payload so that it may be emitted in parts to each route. (#37390)
(Contrib) pkg/stanza: Fix default source identifier in recombine operator (#37210)
Its default value is now aligned with the semantic conventions: attributes["log.file.path"]
(Contrib) processor/tailsampling: Fixed sampling decision metrics otelcol_processor_tail_sampling_sampling_trace_dropped_too_early and otelcol_processor_tail_sampling_sampling_policy_evaluation_error_total, these were sometimes overcounted. (#37212)
As a result of this change non-zero values of otelcol_processor_tail_sampling_sampling_trace_dropped_too_early
and otelcol_processor_tail_sampling_sampling_policy_evaluation_error_total metrics will be lower.
Before this fix, errors got counted several times depending on the amount of traces being processed
that tick and where in the batch the error happened.
Zero values are unaffected.
(Contrib) exporter/signalfx: Warn on dropping metric data points when they have more than allowed dimension count (#37484)
The SignalFx exporter drops metric data points if they have more than 36 dimensions.
Currently, the exporter logs at debug level when this occurs.
With this change, the exporter will log at the warning level.

Docker Image Manifests:

Linux (amd64, arm64, ppc64le) and Windows (2019 amd64, 2022 amd64):

quay.io/signalfx/splunk-otel-collector:0.119.0
digest: sha256:2cd525f1e24a461a08beb2f853181c817e70ed53e92932d3bdac213f2449f202

Windows (2019 amd64, 2022 amd64):

quay.io/signalfx/splunk-otel-collector-windows:0.119.0
digest: sha256:8bc28dd946efc310b67aabf5338a3b5aa89d10a1b23d6f22a5fcc04a1117eb8f