Markers

Markers are little icons used in graphs on AppSignal.com to indicate a change. This can be a code deploy using a “Deploy marker” or a special event with a “Custom marker”.

Deploy markers can be used to indicate a change in application version that’s deployed, grouping together errors and performance issue per deploy. To list only the errors a deploy introduced, use the New errors filter.

Custom markers can be used for anything from scaling operations, to sudden spikes in traffic and infrastructure issues such as when a database was acting up.