What are the main components of a trace message (span)?

A trace message (span) typically consists of the following main blocks:

• Trace ID — a unique identifier for the entire tracing request, linking all spans in a single chain.
• Span ID — a unique identifier for a specific span (operation).
• Parent Span ID — the identifier of the parent span, if any, for building a hierarchy.
• Operation Name — the name of the operation or method being performed.
• Start Timestamp — the start time of the operation.
• Duration — the duration of the operation.
• Tags/Attributes — additional metadata, such as status, errors, request parameters.
• Logs/Events — timestamps with descriptions of events within the span.

These blocks allow tracking and analyzing distributed requests in microservices systems.