Proposal: Extend OCSF Support for Metrics and Traces with New Trace Profile and Metrics Event Class

[pladamgregory]

Summary

The current OCSF schema lacks a structured way to represent metrics and traces, which are critical data types in observability and monitoring contexts. This issue proposes:

1. The addition of a Trace Profile to tag OCSF events as traces, incorporating trace-related identifiers.
2. The addition of a Metrics Info Class (5023) within Category 5 (Discovery) to structure metric attributes, enabling consistent tagging and categorization of metrics data.

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Proposed Additions

1. Trace Profile

   • Introduce a trace profile to the schema, containing standard trace attributes like trace_id, span_id, and other metadata relevant to traces.
   • This profile will allow any OCSF event to be tagged as a trace, supporting enhanced tracking and root cause analysis within observability platforms.

2. Metrics Info Class (5023) for Discovery (Category 5)

   • A new class, Metrics Info Class (5023), under Category 5 (Discovery) would be introduced to handle metric-related data.
   • This class would define a set of Activity IDs and a Type ID attribute for categorizing metric types, as detailed below.

Attributes for Metrics Info Class (5023)

• Activity ID: Represents the origin of the event that triggered the metric.

  • 0: Unknown — The event activity is unknown.
  • 1: Log — The information was obtained from a log.
  • 2: Collect — The information was collected from a process.
  • 99: Other — See activity_name for data source-specific values.

• Type ID: Standardized codes for metric types, covering a wide range of observability metrics such as CPU usage, memory usage, disk I/O, error rates, etc. Here is a proposed list:

Type ID	Description
0	Unknown
1	Timestamp
2	Duration
3	Frequency
4	Latency
10	CPU Usage
11	Memory Usage
12	Disk I/O
13	Network Throughput
14	Queue Length
15	Thread Count
16	Execution Time
17	Resource Utilization
18	Disk Space Usage
19	Heap Size
20	Cache Hit Rate
21	Transaction Rate
22	Error Rate
23	Request Count
24	Success Rate
25	Concurrency
26	Response Time
27	Active Users
28	Session Duration
29	User Actions
30	Page Views
31	Error Count
32	Failure Rate
33	Retry Count
34	Downtime
35	System Uptime
36	Service Availability
37	Temperature
38	Battery Level
39	Data Volume
40	Data Quality
41	Compression Ratio
42	API Request Rate
43	API Error Rate
44	Cost Utilization
45	Instance Uptime
46	Threat Detection Rate
47	Security Event Count
48	Failed Authentication
49	Intrusion Detection
51	Model Accuracy
52	Model Latency
53	Training Time
54	Inference Count
55	Data Drift
56	Revenue
57	Customer Churn Rate
58	Conversion Rate
59	Customer Satisfaction
99	Other — See type_name

[pagbabian-splunk]

Looks good Adam. Have we compared this with how OTel represents metrics and traces? Can the two complement each other? We have work going on to encode OCSF as protobuf, which then could be transported via OTel protocols. They had interest in more collaboration.