Find below the list of out-of-the-box tracing metrics sent by the Datadog Agent when APM is enabled:
| Metric Name | Type | Description |
|---|---|---|
datadog.trace_agent.obfuscations | Count | Increment by one every time an SQL obfuscation happens. |
datadog.trace_agent.started | Count | Increment by one every time the Agent starts. |
datadog.trace_agent.panic | Gauge | Increment by one on every code panic. |
datadog.trace_agent.heartbeat | Gauge | Increment by one every 10 seconds. |
datadog.trace_agent.heap_alloc | Gauge | Heap allocations as reported by the Go runtime. |
datadog.trace_agent.cpu_percent | Gauge | CPU usage (in cores), e.g. 50 (half a core), 200 (two cores), 250 (2.5 cores) |
datadog.trace_agent.ratelimit | Gauge | If lower than 1, it means payloads are being refused due to high resource usage (cpu or memory). |
datadog.trace_agent.normalizer.spans_malformed | Count | Number of spans having malformed fields that had to be altered in order for the system to accept them |
datadog.trace_agent.receiver.trace | Count | Number of traces received and accepted. |
datadog.trace_agent.receiver.traces_received | Count | Same as above |
datadog.trace_agent.receiver.traces_dropped | Count | Traces dropped due to normalization errors. |
datadog.trace_agent.receiver.traces_filtered | Count | Traces filtered by ignored resources (as defined in datadog.yaml file). |
datadog.trace_agent.receiver.traces_priority | Count | Traces processed by priority sampler that have the priority tag. |
datadog.trace_agent.receiver.traces_bytes | Count | Total bytes of payloads accepted by the Agent. |
datadog.trace_agent.receiver.spans_received | Count | Total bytes of payloads received by the Agent. |
datadog.trace_agent.receiver.spans_dropped | Count | Total bytes of payloads dropped by the Agent. |
datadog.trace_agent.receiver.spans_filtered | Count | Total bytes of payloads filtered by the Agent |
datadog.trace_agent.receiver.events_extracted | Count | Total APM events sampled. |
datadog.trace_agent.receiver.events_sampled | Count | Total APM events sampled by the max_events_per_second parameter sampler. |
datadog.trace_agent.receiver.payload_accepted | Count | Number of payloads accepted by the Agent. |
datadog.trace_agent.receiver.payload_refused | Count | Number of payloads rejected by the receiver because of the sampling. |
datadog.trace_agent.receiver.error | Count | Number of times that the API rejected a payload due to an error in either decoding, formatting or other. |
datadog.trace_agent.receiver.oom_kill | Count | Number of times the Agent killed itself due to excessive memory use (150% of max_memory). |
datadog.trace_agent.receiver.tcp_connections | Count | Number of TCP connections coming in to the agent. |
datadog.trace_agent.receiver.out_chan_fill | Gauge | Internal metric. Percentage of fill on the receiver’s output channel. |
datadog.trace_agent.trace_writer.flush_duration | Gauge | Time it took to flush a payload to the Datadog API. |
datadog.trace_agent.trace_writer.encode_ms | Gauge | Number of miliseconds it took to encode a trace payload. |
datadog.trace_agent.trace_writer.compress_ms | Gauge | Number of miliseconds it took to compress an encoded trace payload. |
datadog.trace_agent.trace_writer.payloads | Count | Number of payloads processed. |
datadog.trace_agent.trace_writer.connection_fill | Histogram | Percentage of outgoing connections used by the trace writer. |
datadog.trace_agent.trace_writer.queue_fill | Histogram | Percentage of outgoing payload queue fill. |
datadog.trace_agent.trace_writer.dropped | Count | Number of dropped payloads due to non retriable HTTP errors. |
datadog.trace_agent.trace_writer.dropped_bytes | Count | Number of dropped bytes due to non retriable HTTP errors. |
datadog.trace_agent.trace_writer.payloads | Count | Number of payloads sent. |
datadog.trace_agent.trace_writer.traces | Count | Number of traces processed. |
datadog.trace_agent.trace_writer.events | Count | Number of events processed. |
datadog.trace_agent.trace_writer.spans | Count | Number of spans processed. |
datadog.trace_agent.trace_writer.bytes | Count | Number of bytes sent (calculated after Gzip). |
datadog.trace_agent.trace_writer.bytes_uncompressed | Count | Number of bytes sent (calculated before Gzip). |
datadog.trace_agent.trace_writer.bytes_estimated | Count | Number of bytes estimated by Agent internal algorithm. |
datadog.trace_agent.trace_writer.retries | Count | Number of retries on failures to the Datadog API. |
datadog.trace_agent.trace_writer.errors | Count | Errors that could not be retried. |
datadog.trace_agent.stats_writer.stats_buckets | Count | Number of stats buckets flushed. |
datadog.trace_agent.stats_writer.bytes | Count | Number of bytes sent (calculated after Gzip). |
datadog.trace_agent.stats_writer.retries | Count | Number of retries on failures to the Datadog API |
datadog.trace_agent.stats_writer.splits | Count | Number of times a payload was split into multiple ones. |
datadog.trace_agent.stats_writer.errors | Count | Errors that could not be retried. |
datadog.trace_agent.stats_writer.encode_ms | Histogram | Time it took to encode a stats payload. |
datadog.trace_agent.stats_writer.connection_fill | Histogram | Percentage of outgoing connections used. |
datadog.trace_agent.stats_writer.queue_fill | Histogram | Percentage of queue filled. |
datadog.trace_agent.stats_writer.dropped | Count | Number of payloads dropped due to non retriable HTTP errors. |
datadog.trace_agent.stats_writer.dropped_bytes | Count | Number of bytes dropped due to non retriable HTTP errors. |
datadog.trace_agent.service_writer.services | Count | Number of services flushed. |
datadog.trace_agent.events.max_eps.max_rate | Gauge | Same as the Agent config’s max_events_per_second parameter. |
datadog.trace_agent.events.max_eps.reached_max | Gauge | Is set to 1 every time max_events_per_second is reached, otherwise it’s 0. |
datadog.trace_agent.events.max_eps.current_rate | Gauge | Count of APM Events per second received by the Agent |
datadog.trace_agent.events.max_eps.sample_rate | Gauge | Sample rate applied by the Agent to Events it received |
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