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 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
Limits and quotas for logs

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

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	Note
Maximum size of attribute keys	512 bytes	Limit.
Maximum size of attribute values	64 KiB	Limit.
Maximum size of a `Span` ^* object's name	1024 bytes	Limit.
Maximum number of attributes attached to a `Span` ^* object	1024	Limit.
Maximum number of resource attributes per `ResourceSpans` ^* object	1024	Limit.
Maximum number of attributes per `ResourceSpan` ^* object Includes attributes attached to child objects of the following types: `Resource` , `Span` , `ScopeSpans` , `Event` , and `Link.`	8192	Limit.
Maximum number of `Event` ^* objects per `Span` ^* object	256	Limit.
Maximum number of `Link` ^* objects per `Span` ^* object	128	Limit.
Maximum size of an `Event` ^* object's name	1024 bytes	Limit.
Maximum number of attributes per `Event` ^* object	1024	Limit.
Maximum attributes per `Link` ^* object	1024	Limit.
Maximum size of schema URLs	8192 bytes	Limit.
Maximum number of trace-ingestion bytes per minute	2.4 GB for the following regions: `asia-east1, asia-northeast1, asia-southeast1, asia-south1, europe-west1, europe-west2, europe-west3, europe-west4, us-central1, us-east4, us-west1` . 300 MB for all other regions.	Quota.

^* 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	Note
Maximum number of datapoints per request	200	Limit
Maximum number of ResourceMetrics per request	200	Limit
Maximum number of quantiles per Summary metric	10	Limit
Number of metric-ingestion requests per minute per region (quota)	60,000	Quota

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

Limits and quotas for ingestion of logs

This section describes the limits and quotas that apply when the Telemetry API ingests log data.

Description	Value	Notes
Maximum number of logs per OTLP request	8192	Refers to the maximum number of `logRecords` in an OTLP `resourceLogs` structure. Limit.
Maximum size of each request	5 MiB	Limit.
Maximum size of a `LogEntry` that is created from an OTLP log record	256 KiB	Cloud Logging truncates or discards data from an OTLP log record when necessary. Limit.
Maximum length of an attribute key	512 B	Oversized label keys are truncated when the OTLP log record is converted into a `LogEntry` . Limit.
Maximum length of an attribute value	64 KiB	Oversized label values when the OTLP log record is converted into a `LogEntry` . Limit.
Maximum depth of attribute nesting	5	Attributes that exceed this limit are truncated when the OTLP log record is converted into a `LogEntry` .
Maximum number of log-ingestion bytes per minute	2.4 GB for the following regions: `asia-east1, asia-northeast1, asia-southeast1, asia-south1, europe-west1, europe-west2, europe-west3, europe-west4, us-central1, us-east4, us-west1` . 300 MB for all other regions.	Quota.

The Cloud Logging quotas and limits also apply when the Telemetry API ingests log data.

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 & Servicesor click the following button:

Go to APIs & Services