Quotas and limits

This page documents fine-grained limits applying to you configuration and telemetry you send to Dash0. To the best of our knowledge, you should never hit any of these limits with OpenTelemetry automatic instrumentations or any normal observability use-case.

Tracing

Traces

Maximum number of spans per trace: 2,000

Spans

Maximum character length of a span name: 128

Maximum number of attributes per span: 32; Note: resource, scope, span event and span link attributes do not count against this limit

Maximum character length for span attribute keys: 128

Maximum character length for span attribute values: 2048

Maximum past timestamp for a span to be ingested: 14 days

Maximum future timestamp for a span to be ingested: 3 days

Span events

Maximum character length of a span event name: 128

Maximum number of span events per span: 8

Maximum number of attributes per span event: 8; Note: resource, scope and span attributes do not count against this limit

Maximum character length for span event attribute keys: 128

Maximum character length for span event attribute values: 2048

Maximum number of span links per span: 128

Span links

Maximum number of attributes per span link: 8

Maximum number of attributes per span link: 8; Note: resource, scope and span attributes do not count against this limit

Maximum character length for span link attribute keys: 128

Maximum character length for span link attribute values: 2048

Logging

Log records and log events

Maximum length of a log body: 4 KB

Maximum number of attributes per log record: 16; Note: resource and scope attributes do not count against this limit

Maximum character length for log record attribute keys: 128

Maximum character length for log record attribute values: 2048

Maximum past timestamp for a log record to be ingested: 14 days

Maximum future timestamp for a log record to be ingested: 3 days

Metrics

Maximum character length of a metric name: 128

Maximum character length of a metric description: 512

Maximum character length of a metric unit: 64

Maximum number of datapoints per metric: unlimited

Maximum number of metadata entries per metric: 8; Note: resource and scope attributes, and metrics metadata do not count against this limit

Maximum character length for metadata keys: 128

Maximum character length for metadata values: 2048

Datapoints

Maximum number of attributes per metric datapoint: 16; Note: resource and scope attributes, and metrics metadata do not count against this limit

Maximum character length for metric datapoint attribute keys: 128

Maximum character length for metric datapoint attribute values: 2048

Maximum past timestamp for a metric datapoint to be ingested: 14 days

Maximum future timestamp for a metric datapoint to be ingested: 3 days

Maximum count of exemplars: 8

Maximum count of filtered attributes for an exemplar: 8

Maximum character length for filtered attribute keys for an exemplar: 128

Maximum character length for filtered attribute values for an exemplar: 2048

Maximum count of histogram buckets: 32

Maximum count of quantiles for summaries: 16

Alerting

Maximum number of check rules per dataset: 128

Dashboards

Maximum number of dashboards per dataset: 512