While execution a File Trigger job, the agent's 'filemon' plugin allows to retry the attempts to find target file if the 'Scan Failed' error occurred; the setting is regulated by the parameters in the agentparm.txt file:
filemonplugin.scan.retries
filemonplugin.scan.retries.sleep
Does the agent record the attempts made, and in what log file it is recorded?
Yes, the agent writes information about the attempts made into the log file called 'filemon_scanner_polling.log'
Note, that the file is created after the Scan Failed occurrence.