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Chapter 1. Release notes for the Red Hat build of OpenTelemetry 3.7

1.1. About this release
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Red Hat build of OpenTelemetry 3.7 is provided through the Red Hat build of OpenTelemetry Operator 0.135.0 and based on the open source OpenTelemetry release 0.135.0.

Note

Some linked Jira tickets are accessible only with Red Hat credentials.

Note

Only supported features are documented. Undocumented features are currently unsupported. If you need assistance with a feature, contact Red Hat’s support.

1.2. New features and enhancements
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Network policy to restrict API access
With this update, the Red Hat build of OpenTelemetry Operator creates a network policy for itself and the OpenTelemetry Collector to restrict access to the used APIs.
Native sidecars
With this update, the Red Hat build of OpenTelemetry Operator uses native sidecars on OpenShift Container Platform 4.16 or later.

1.3. Technology Preview features
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Important

Technology Preview features are not supported with Red Hat production service level agreements (SLAs) and might not be functionally complete. Red Hat does not recommend using them in production. These features provide early access to upcoming product features, enabling customers to test functionality and provide feedback during the development process.

For more information about the support scope of Red Hat Technology Preview features, see Technology Preview Features Support Scope.

Probabilistic Sampling Processor (Technology Preview)
This release introduces the Probabilistic Sampling Processor as a Technology Preview feature for the Red Hat build of OpenTelemetry Collector. The Probabilistic Sampling Processor samples a specified percentage of trace spans or log records statelessly and per request. You can use the Probabilistic Sampling Processor if you handle high volumes of telemetry data and seek to reduce costs by reducing processed data volumes.

1.4. Deprecated features
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The OpenCensus Receiver is deprecated
The OpenCensus Receiver, which provided backward compatibility with the OpenCensus format, is deprecated and might be removed in a future release.
The Collector’s service metrics telemetry address is deprecated

The metrics.address field in the OpenTelemetryCollector custom resource (CR) is deprecated and might be removed in a future release. As an alternative, use the metrics.readers field instead.

Example of using the readers field: 

# ...
  config:
    service:
      telemetry:
        metrics:
          readers:
          - pull:
              exporter:
                prometheus:
                  host: 0.0.0.0
                  port: 8888
# ...
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1.5. Removed features
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The LokiStack Exporter is removed
The LokiStack Exporter, which exported data to a LokiStack instance, is removed and no longer supported. You can export data to a LokiStack instance by using the OTLP HTTP Exporter instead.
The Routing Processor is removed
The Routing Processor, which routed telemetry data to an exporter is removed and no longer supported. You can route telemetry data by using the Routing Connector instead.

1.6. Getting support
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If you experience difficulty with a procedure described in this documentation, or with OpenShift Container Platform in general, visit the Red Hat Customer Portal.

From the Customer Portal, you can:

  • Search or browse through the Red Hat Knowledgebase of articles and solutions relating to Red Hat products.
  • Submit a support case to Red Hat Support.
  • Access other product documentation.

To identify issues with your cluster, you can use Insights in OpenShift Cluster Manager. Insights provides details about issues and, if available, information on how to solve a problem.

If you have a suggestion for improving this documentation or have found an error, submit a Jira issue for the most relevant documentation component. Please provide specific details, such as the section name and OpenShift Container Platform version.

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