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
TheTelemetry (OTLP) API implementstheOpenTelemetry OTLP specification for ingestionof data into Google Cloud Observability. After data is ingested, the otherlisted 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 theService Specific Terms. Pre-GA features are available "as is" and might have limited support. For more information, see thelaunch stage descriptions.
This section describes only the quotas and limits that apply to theTelemetry (OTLP) API for ingestionof trace and metric data:
These quotas and limits apply only to the data being ingested by using theTelemetry API. After data is ingested, the Cloud Trace andCloud Monitoring quotas and limits apply:
Limits for ingestion of traces
This section lists the limits that apply when the Telemetry APIis used to ingest trace data. This API is designed for use with applicationsthat are instrumented by using one of theOpenTelemetry SDKs.
| Description | Value |
|---|---|
| Maximum size of attribute keys | 512 bytes |
| Maximum size of attribute values | 64 KiB |
Maximum size of aSpan* object's name | 1024 bytes |
Maximum number of attributes attached to aSpan* object | 1024 |
Maximum number of resource attributes perResourceSpans* object | 1024 |
Maximum number of attributes perResourceSpan* objectIncludes attributes attached to child objects of the following types: Resource,Span,ScopeSpans,Event, andLink. | 8192 |
Maximum number ofEvent* objects perSpan* object | 256 |
Maximum number ofLink* objects perSpan* object | 128 |
Maximum size of anEvent* object's name | 1024 bytes |
Maximum number of attributes perEvent* object | 1024 |
Maximum attributes perLink* object | 1024 |
| Maximum size of schema URLs | 8192 bytes |
TheCloud Trace quotas and limits alsoapply 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 APIis 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 |
TheCloud Monitoring quotas and limits alsoapply 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, seetheCloud Quotas documentation.
To view your current quota usage, in the Google Cloud console,go toAPIs & Services or click the following button:
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Last updated 2026-02-19 UTC.