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ROM is a persistence and mapping toolkit for Ruby. AppSignal instruments ROM queries automatically when the dry-monitor gem is detected on start. No manual setup is required. ROM reports its queries through Dry::Monitor notifications, which AppSignal reads.

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Performance monitoring

Queries made through ROM appear in the event timeline of your application’s performance actions, showing the query that was executed.

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Event names

ROM queries are reported as query.rom events. Earlier versions reported them under a different event name.

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Span attributes

Collector mode only: this applies when AppSignal for Ruby runs in collector mode. It has no effect otherwise.
The query’s span carries:
  • db.system.name — the database the query ran against, such as postgresql or mysql.
  • db.query.text — the query, with its values removed.