Quotas and limits

This document provides quota and limit information for Google Cloud Observability. For service-specific quota and limit information, see the following documents:

• Error Reporting quotas and limits
• Cloud Logging quotas and limits
• Cloud Monitoring quotas and limits
• Cloud Profiler quotas and limits
• Cloud Trace quotas and limits

• Telemetry API quotas and limits

  The Telemetry (OTLP) API implements the OpenTelemetry OTLP specification for ingestion of data into Google Cloud Observability. After data is ingested, the other listed quotas and limits apply as well.

Telemetry API limits

This feature is subject to the "Pre-GA Offerings Terms" in the General Service Terms section of the Service Specific Terms. Pre-GA features are available "as is" and might have limited support. For more information, see the launch stage descriptions.

This section describes only the quotas and limits that apply to the Telemetry (OTLP) API for ingestion of trace and metric data:

• Limits for traces
• Limits and quotas for metrics

These quotas and limits apply only to the data being ingested by using the Telemetry API. After data is ingested, the Cloud Trace and Cloud Monitoring quotas and limits apply:

• Cloud Trace quotas and limits
• Cloud Monitoring quotas and limits

Limits for ingestion of traces

This section lists the limits that apply when the Telemetry API is used to ingest trace data. This API is designed for use with applications that are instrumented by using one of the OpenTelemetry SDKs.

Description	Value
Maximum size of attribute keys	512 bytes
Maximum size of attribute values	64 KiB
Maximum size of a Span^* object's name	1024 bytes
Maximum number of attributes attached to a Span^* object	1024
Maximum number of resource attributes per ResourceSpans^* object	1024
Maximum number of attributes per ResourceSpan^* object Includes attributes attached to child objects of the following types: Resource, Span, ScopeSpans, Event, and Link.	8192
Maximum number of Event^* objects per Span^* object	256
Maximum number of Link^* objects per Span^* object	128
Maximum size of an Event^* object's name	1024 bytes
Maximum number of attributes per Event^* object	1024
Maximum attributes per Link^* object	1024
Maximum size of schema URLs	8192 bytes

^*  For a definition of this structure, see the trace.proto file.

The Cloud Trace quotas and limits also apply when using the Telemetry API for trace ingestion.

Limits and quotas for ingestion of metrics

This section lists the limits and quotas that apply when the Telemetry API is used to ingest metric data.

Description	Value
Maximum number of datapoints per request (limit)	200
Maximum number of ResourceMetrics per request (limit)	200
Maximum number of quantiles per Summary metric (limit)	10
Number of metric-ingestion requests per minute (quota)	60,000

The Cloud Monitoring quotas and limits also apply when using the Telemetry API for metric ingestion.

View and manage your quotas

To learn more about quotas, including how to view and manage quotas, see the Cloud Quotas documentation.

To view your current quota usage, in the Google Cloud console, go to APIs & Services or click the following button:

Go to APIs & Services