[NIFI-1959] TailFile not ingesting data when tailed file is moved with no rolling pattern

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 0.6.1
• Fix Version/s: 1.1.0
• Component/s: Extensions
• Assignee: Pierre Villard
• Reporter: Pierre Villard
• Created: 02/Jun/16 21:08
• Updated: 19/Jul/17 12:31
• Resolved: 21/Sep/16 14:11

Description

In case "Rolling Filename Pattern" is not set by user and if the tailed file is moved, then the new file will not be tailed.

Besides, in such case, the processor will be endlessly triggered without ingesting data: it creates a lot of tasks and consumes CPU. The reason is it never goes in if statement L448.

A solution is to look at size() and lastUpdated() of the tailed file to detect a "rollover". However it won't allow the processor to ingest the potential data added in the tailed file just before being moved.

Issue Links

• Is contained by: NIFI-1170 TailFile "File to Tail" property should support Wildcards
• relates to: NIFI-4205 TailFile can produce duplicated data when it wrongly assumes a file is rotated
• links to: GitHub Pull Request #490