Errors

An error event contains at least information about the original exception that occurred or about a log created when the exception occurred. For simplicity, errors are represented by a unique ID.

An Error contains:

Both the captured exception and the captured log of an error can contain a stack trace, which is helpful for debugging.
The culprit of an error indicates where it originated.
An error might relate to the transaction during which it happened, via the transaction.id.
Data about the environment in which the event is recorded:
- Service - environment, framework, language, etc.
- Host - architecture, hostname, IP, etc.
- Process - args, PID, PPID, etc.
- URL - full, domain, port, query, etc.
- User - (if supplied) email, ID, username, etc.

In addition, agents provide options for users to capture custom metadata. Metadata can be indexed - labels, or not-indexed - custom.

Most agents limit keyword fields (e.g. error.id) to 1024 characters, non-keyword fields (e.g. error.exception.message) to 10,000 characters.

Errors are stored in error indices.

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