[NIFI-8602] Managing older NARs within NAR autoloader

• Type: Improvement
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Component/s: Extensions
• Assignee: Simon Bence
• Reporter: Simon Bence
• Created: 13/May/21 16:24
• Updated: 13/May/21 16:26

Description

Based on markap14's improvement idea on the original ticket:

It's possible that over time users will continually add new versions of a NAR to the same directory. And over time this will result in loading massive amounts of NAR's into NiFi. Those that get removed will remain in NiFi. We will need some way to age off old NARs. Perhaps after performing a listing, we should detect any nar's that were previously downloaded from that NarProvider and not present in the Listing. Then, if any of those is not in use (i.e., no extensions are in the flow that use that bundle) then we can remove the bundle and its NarLoader.

Issue Links

• depends upon: NIFI-8519 HDFS support for Hot Loading