Because rack-timeout may raise at any point in the codepath of a timed-out request, the stack traces for similar requests may differ, causing rollbar to create separate entries for each timeout.
The recommended practice is to configure Custom Fingerprints on Rollbar.
Example:
[
{
"condition": {
"eq": "Rack::Timeout::RequestTimeoutException",
"path": "body.trace.exception.class"
},
"fingerprint": "Rack::Timeout::RequestTimeoutException {{context}}",
"title": "Rack::Timeout::RequestTimeoutException {{context}}"
}
]
This configuration will generate exceptions following the pattern: Rack::Timeout::RequestTimeoutException controller#action
On previous versions this configuration was made using Rack::Timeout::Rollbar which was removed. More details on the Issue #122.