[NIFI-6817] When there are multiple PutHDFS with snappy compression, will throw java.lang.UnsatisfiedLinkError

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 1.9.0, 1.9.2
• Component/s: Extensions
• Environment: nifi-1.9.2 ; centos 7.3
• Assignee: Unassigned
• Reporter: lixh
• Created: 28/Oct/19 09:08
• Updated: 09/Mar/20 11:56
• Resolved: 09/Mar/20 11:55

Description

The first flow put hdfs use snappy compression codec work correct. now copy the flow and start it, the second PutHDFS will throw  java.lang.UnsatisfiedLinkError.

The hadoop native lib path config in bootstrap.conf: java.arg.17=-Djava.library.path=/usr/lib/hadoop/native

I guess，Because AbstractHadoopProcessor.java has @RequiresInstanceClassLoading(cloneAncestorResources = true),so org.apache.hadoop.util.NativeCodeLoader will be load by diffrent instanceClassloader

Issue Links

• duplicates: NIFI-6884 Class loader isolation not working properly with native libraries