[NIFI-7781] Nar loading should not impact the loading of NiFi overall

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 1.11.4
• Component/s: Extensions
• Labels: exception-handling
• Environment: Linux
• Assignee: Unassigned
• Reporter: Joseph Kesselman
• Created: 01/Sep/20 13:52
• Updated: 01/Sep/20 14:58
• Resolved: 01/Sep/20 14:58

Description

No matter what's broken about it, a bad nar should not be able to keep the rest of NiFi from running. Catch and handle this exception. And preferably give us more information about what the problem was than "unable to load" – was file not found, not a valid nar, in conflict with other classes, written on a Thursday...

 

2020-08-31 23:58:20,960 ERROR [main] -> org.apache.nifi.NiFi -> Failure to launch NiFi due to java.lang.IllegalStateException: Unable to load NAR with co
java.lang.IllegalStateException: Unable to load NAR with coordinates com.ibm.rtwa:nifi-random-nar:1.0-SNAPSHOT and working directory ./work/nar/extension
at org.apache.nifi.nar.NarClassLoaders.load(NarClassLoaders.java:181)
at org.apache.nifi.nar.NarClassLoaders.init(NarClassLoaders.java:119)
at org.apache.nifi.NiFi.<init>(NiFi.java:134)
at org.apache.nifi.NiFi.<init>(NiFi.java:72)
at org.apache.nifi.NiFi.main(NiFi.java:301)