Agent Rate Limits
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Agent Rate Limits

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Max events per second limit

If you encounter the following error message in your Agent logs, your applications are emitting more than the default 200 trace events per second allowed by APM.

Max events per second reached (current=300.00/s, max=200.00/s). Some events are now being dropped (sample rate=0.54). Consider adjusting event sampling rates.

To increase the APM rate limit for the Agent, configure the max_events_per_second attribute within the Agent’s configuration file (underneath the apm_config: section). For containerized deployments (for example, Docker or Kubernetes), use the DD_APM_MAX_EPS environment variable.

Note: Increasing the APM rate limit could result in increased costs for App Analytics.

Max connection limit

If you encounter the following error message in your Agent logs, the default APM connection limit of 2000 has been exceeded:

ERROR | (pkg/trace/logutil/throttled.go:38 in log) | http.Server: http: Accept error: request has been rate-limited; retrying in 80ms

To increase the APM connection limit for the Agent, configure the connection_limit attribute within the Agent’s configuration file (underneath the apm_config: section). For containerized deployments (for example, Docker or Kubernetes), use the DD_APM_CONNECTION_LIMIT environment variable.