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@github-actions github-actions released this 12 Mar 12:15
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v0.45.0
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v0.45.0

This release includes versions v0.146.0 and v0.147.0 of the upstream Collector components.

The individual upstream Collector changelogs can be found here:

v0.147.0:

v0.146.0 and v0.146.1:

Highlights from the upstream Collector changelog

🛑 Breaking changes 🛑

  • processor/k8s_attributes: Introduce semantic conventions compliant feature gate pair for k8sattributes processor (#44693)

    • Added processor.k8sattributes.EmitV1K8sConventions feature gate to enable stable semantic convention attributes (singular form: k8s.<workload>.label.<key> and k8s.<workload>.annotation.<key>)
    • Added processor.k8sattributes.DontEmitV0K8sConventions feature gate to disable legacy non-compliant attributes (plural form: k8s.<workload>.labels.<key> and k8s.<workload>.annotations.<key>)
    • Both feature gates are in alpha stage and disabled by default
    • The processor now validates that legacy attributes cannot be disabled without enabling stable attributes
    • Deprecated k8sattr.labelsAnnotationsSingular.allow feature gate in favor of the new semconv-compliant gates (will be removed in v0.150.0)
    • During migration period, both legacy and stable attributes can coexist when EmitV1K8sConventions is enabled but DontEmitV0K8sConventions is not

  • processor/resourcedetection: Promote processor.resourcedetection.propagateerrors feature gate to Stable and is now always enabled (#44609)

  • processor/resourcedetection: Remove feature gate processor.resourcedetection.removeGCPFaasID (#45808)

  • processor/resourcedetection: Changed cloud platform value for Azure EKS from azure_eks to azure.eks to align with OpenTelemetry semantic conventions v1.39.0. (#45030)

  • receiver/hostmetrics: process.context_switches will now properly count context switches for all threads (#36804)

    Previously, only the lead thread's context switches would be counted. We believe this was a bug, but are marking it as a breaking change.

  • receiver/kafka: Remove deprecated topic and exclude_topic fields (#46232)

  • receiver/kafkametrics: receiver.kafkametricsreceiver.UseFranzGo feature gate is now in Beta stage and enabled by default (#44600)

🚩 Deprecations 🚩

  • processor/k8s_attributes: Rename internal telemetry metrics to use dots instead of underscores (#45871)
  • processor/k8s_attributes: Rename k8sattributes processor to k8s_attributes processor and add deprecated alias k8sattributes (#45894)
  • receiver/kubeletstats: The GCEPersistentDisk, AWSElasticBlockStore, and Glusterfs volume types have been deprecated as these have been deprecated in k8s (#40477)

💡 Enhancements 💡

  • all: Add detailed failure attributes to exporter send_failed metrics at detailed telemetry level (#13956)
    The otelcol_exporter_send_failed_{spans,metric_points,log_records} metrics now include failure attributes.

  • exporter/debug: Output bucket counts for exponential histogram data points in normal verbosity. (#10463)

  • exporter/debug: Add output_paths configuration option to control output destination (#10472)

  • exporter/kafkaexporter: Add conn_idle_timeout configuration option to control when idle connections are closed (#45321)
    Defaults to 9 minutes.

  • exporter/loadbalancing: Support metrics routing by attributes in the loadbalancing exporter (#45675)

  • exporter/loadbalancing: Change default timeout for k8s resolver from 1s to 1m to reduce Kubernetes API server load (#33004)

  • extension/healthcheck: Added extension.healthcheck.useComponentStatus feature gate to enable v2 component status reporting (#42256)

  • extension/filestorage: Support added for file-based storage configurations

  • pkg/ottl: Add IsInCIDR function to check if IP belongs to given list of CIDR (#42215)

  • pkg/ottl: Add Base64Encode function to OTTL (#46071)

  • pkg/ottl: Added metadata access path to all OTTL contexts for accessing client request metadata (#33288)

  • pkg/sampling: Optimize OTel tracestate parsing by replacing regex validation with hand-written validator (10-21x faster). (#45539)

  • pkg/sampling: Replace regex-based W3C tracestate validation with hand-written validator for 30-65x performance improvement (#45734)

  • processor/filter: Introduces inferred context conditions for filtering (#37904)
    Introduces three new top-level config fields: metric_conditions, log_conditions, trace_conditions.

  • processor/k8s_attributes: Added container.image.tags resource attribute with feature gate controls (#44589)

  • processor/k8s_attributes: ReplicaSet handling now supports PartialObjectMetadata, reducing cold-start memory/time (#44407)

  • processor/redaction: Add HMAC hash functions (hmac-sha256 and hmac-sha512) for GDPR-compliant pseudonymization (#45715)

  • processor/resourcedetection: Add tags_from_imds config option to EC2 detector to control instance tag retrieval method (#46046)

  • processor/resourcedetection: Added Tencent Cloud CVM resource detector to the Resource Detection Processor (#45779)

  • receiver/filelog: Suppress repeated permission-denied errors (#39491)
    Only one error is logged per file per process run.

  • receiver/hostmetrics: Add support for Linux hugepages memory monitoring via system.memory.linux.hugepages metrics (#42650)

  • receiver/hostmetrics: Add optional system.memory.linux.shared metric (#32712)

  • receiver/hostmetrics: Reduce excessive float64 precision in memory, disk, and filesystem scrapers (#46141)

  • receiver/k8sobjects: Add support for exclude_namespaces to exclude specific namespaces from being watched (#36217)

  • receiver/k8s_cluster: Add opt-in service metrics derived from k8s Service and EndpointSlice API (#45620)

    New metrics (disabled by default):

    • k8s.service.endpoint.count: Number of endpoints by condition (ready, serving, terminating), address type, and zone
    • k8s.service.load_balancer.ingress.count: Number of load balancer ingress points assigned to the service
      New resource attributes:
    • k8s.service.name: The k8s service name
    • k8s.service.uid: The k8s service uid
    • k8s.service.type: The k8s service type
    • k8s.service.traffic_distribution: The service's traffic routing preference
    • k8s.service.publish_not_ready_addresses: Whether the service publishes endpoints before pods are ready

  • receiver/k8s_cluster: Define entities and relationships for Kubernetes resources in metadata.yaml (#41080)

  • receiver/kafka: Add conn_idle_timeout configuration option to control when idle connections are closed (#45321)

    Defaults to 9 minutes.

  • receiver/kafkametrics: Improvements to Franz-go consumer handling and configuration options

  • receiver/statsd: Discard StatsD metrics with NaN or infinite values to prevent invalid data from entering the metric pipeline (#44288)

  • receiver/syslog: Add facility_text attribute to syslog parser output (#45641)

    The syslog parser now outputs a facility_text attribute containing
    the human-readable facility name (e.g., "auth", "kern", "local0")
    in addition to the existing numeric facility attribute.

🧰 Bug fixes 🧰

  • exporter/loadbalancing: Change default timeout for k8s resolver from 1s to 1m to reduce Kubernetes API server load (#33004)

  • processor/cumulativetodelta: Fix memory blowup in exponential histogram delta conversion (#45927)

  • processor/resourcedetection: IRSA and Pod Identity tokens are checked to determine if running within an EKS cluster (#45866)

  • processor/tail_sampling: Properly remove trace id from its original batch when using decision_wait_after_root_received (#46004)
    The bug only causes the traces dropped too early metric to be incorrectly incremented. There is no functional change to what is sampled.

  • pkg/confmap: Fix an issue where configs could fail to decode when using interpolated values in string fields (#14034)

  • pkg/fileconsumer: Do not evaluate the include/exclude file patterns during component start (#45988)
    Previously a synchronous glob walk would block the collector from reporting readiness.

  • pkg/otelcol: The featuregate subcommand now rejects extra positional arguments instead of silently ignoring them. (#14554)

  • pkg/stanza: Fix recombine operator logging errors at ERROR level when on_error is set to quiet mode (#42646)

  • processor/k8s_attributes: Fix concurrent map access panic by cloning pod labels and annotations before extraction (#46112)

  • processor/k8s_attributes: Allow key_regex to work without tag_name by using the default tag name format (#45719)

    When using key_regex with capturing groups but without specifying tag_name, the processor now
    correctly uses the default tag name format (e.g., k8s.pod.labels.<label_key>) instead of
    producing empty tag names.

  • processor/batch: Fix bug where the batch processor would not copy SchemaUrl metadata during partial batch splits (#12279)

  • processor/redaction: Improve database sanitization with system-aware obfuscation, span name sanitization, and URL path parameter redaction. (#44229)

    Database sanitization now validates span kind (CLIENT/SERVER/INTERNAL ) and requires db.system.name/db.system attribute for traces/metrics
    Implemented span name obfuscation for database operations based on db.system
    Added URL path parameter sanitization for span names with configurable pattern matching
    Improved query validation database sanitizers
    Fix issue ensuring no spans with ... name can be generated due to enabling multiple sanitizers
    If something went wrong during span name sanitization, original span name is used

  • receiver/fluentforward: Handle uint64 to int64 overflow by changing to string (#45252)

    FluentD supports record entries with uint64 types. OpenTelemetry log attributes only support int64 and no uint64.
    The old solution would overflow with uint64 values greater than math.MaxInt64 and result in negative attribute values.
    This fix changes that behaviour by storing only those large values as string attributes instead.

  • receiver/syslog: Handle multiple concatenated JSON objects (#46120)

Dynatrace distribution changelog:

🛑 Breaking changes 🛑

  • Self-monitoring: the otelcol_exporter_send_failed_{spans,metric_points,log_records} metrics now only emit data points when there are failures to report.

    Not reporting data points which have a value of 0 should reduce metric data volume and therefore ingest costs.

  • Self-monitoring: The rpc.* metrics were upgraded to use v1.39.0 version of semantic conversions, which leads to breaking changes of the following metrics:

    rpc span and metric attributes have been renamed to align with naming guidelines:

    rpc.system → rpc.system.name (values: grpc, grpc_web, connectrpc, thrift, dubbo, etc.)
    rpc.method and rpc.service have been merged into a fully-qualified rpc.method attribute
    rpc.client|server.duration → rpc.client|server.call.duration (unit changed to seconds)
    rpc.grpc.request.metadata/rpc.grpc.response.metadata → rpc.request.metadata/rpc.response.metadata
    rpc.grpc.status_code → deprecated in favor of rpc.response.status_code
    rpc.jsonrpc.request_id → jsonrpc.request.id
    rpc.jsonrpc.version → jsonrpc.protocol.version

    system and process metrics:

    *.linux.memory metrics renamed to *.memory.linux
    system.process.status → process.state
    system.paging.type and process.paging.fault_type → system.paging.fault.type

    peer.service attribute has been deprecated in favor of service.peer.name

    More details available in this PR

🚀 New components 🚀

  • extension/filestorage: Add filestorage extension to the distribution (#834)

💡 Enhancements 💡

  • config_examples: Add an OTLP logs pipeline with resource detection to the host metrics config example (#846)
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