Details
Minor Description
After almost exactly 1 week of running 1.18.0, previously configured GetSMBFile processes are reporting that they cannot retrieve files due to "Different server found for same hostname" error. This happened on more than 1 of my GetSMBFile connectors. There does not appear to be a way to force it to "forget" the server; restarting the processor did not fix it. A full NiFi restart does resolve the issue.
Dump information:
2022-10-26 08:46:51,188 INFO [Timer-Driven Process Thread-55] c.hierynomus.smbj.connection.Connection Closed connection to servername.domain
2022-10-26 08:46:51,188 INFO [Packet Reader for servername.domain] c.h.s.t.tcp.direct.DirectTcpPacketReader Thread[Packet Reader for servername.domain,5,main] stopped.
2022-10-26 08:46:51,188 ERROR [Timer-Driven Process Thread-55] o.apache.nifi.processors.smb.GetSmbFile GetSmbFile[id=d212416c-9cb0-1f8e-cf35-c4cdfe011e42] Could not establish smb connection because of error co
m.hierynomus.protocol.transport.TransportException: Different server found for same hostname 'servername.domain', disconnecting...
com.hierynomus.protocol.transport.TransportException: Different server found for same hostname 'servername.domain', disconnecting...
at com.hierynomus.smbj.connection.SMBProtocolNegotiator.initializeOrValidateServerDetails(SMBProtocolNegotiator.java:232)
at com.hierynomus.smbj.connection.SMBProtocolNegotiator.negotiateDialect(SMBProtocolNegotiator.java:83)
at com.hierynomus.smbj.connection.Connection.connect(Connection.java:141)
at com.hierynomus.smbj.SMBClient.getEstablishedOrConnect(SMBClient.java:96)
at com.hierynomus.smbj.SMBClient.connect(SMBClient.java:71)
at org.apache.nifi.processors.smb.GetSmbFile.onTrigger(GetSmbFile.java:390)
at org.apache.nifi.processor.AbstractProcessor.onTrigger(AbstractProcessor.java:27)
at org.apache.nifi.controller.StandardProcessorNode.onTrigger(StandardProcessorNode.java:1354)
at org.apache.nifi.controller.tasks.ConnectableTask.invoke(ConnectableTask.java:246)
at org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:102)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:515)
at java.base/java.util.concurrent.FutureTask.runAndReset(FutureTask.java:305)
at java.base/java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:305)
at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1128)
at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:628)
at java.base/java.lang.Thread.run(Thread.java:834)
A possible answer was found here: https://github.com/hierynomus/smbj/issues/672
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