Joseph Percivall created NIFI-2944:
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Summary: Validate the configured remote input hostname
Key: NIFI-2944
URL: https://issues.apache.org/jira/browse/NIFI-2944
Project: Apache NiFi
Issue Type: Improvement
Affects Versions: 1.0.0
Reporter: Joseph Percivall
Priority: Minor
Currently NiFi doesn't do any validation on what is set for
"nifi.remote.input.host". For example, I ran across 1 node cluster configured
with a remote input hostname that started with a "http:// ...". This cluster
started up and everything seemed fine on it's end but on the client side it
failed.
After the initial connection it received "http:// ..." as the hostname for it
to connect to causing UnknownHostExceptions.
NiFi should validate that the value set for the remote input host is valid in
order to avoid this issue.
Example:
2016-10-25 11:18:29,132 ERROR [Timer-Driven Process Thread-6]
o.a.nifi.remote.StandardRemoteGroupPort RemoteGroupPort[name=From
MiNiFi,target=http://<HOSTNAME>:9090/nifi/] failed to communicate with
http://<HOSTNAME>:9090/nifi/ due to java.net.UnknownHostException
2016-10-25 11:18:29,136 ERROR [Timer-Driven Process Thread-6]
o.a.nifi.remote.StandardRemoteGroupPort
java.net.UnknownHostException: null
at sun.nio.ch.Net.translateException(Net.java:155) ~[na:1.8.0_74]
at sun.nio.ch.SocketAdaptor.connect(SocketAdaptor.java:127) ~[na:1.8.0_74]
at
org.apache.nifi.remote.client.socket.EndpointConnectionPool.establishSiteToSiteConnection(EndpointConnectionPool.java:712)
~[nifi-site-to-site-client-0.6.1.jar:0.6.1]
at
org.apache.nifi.remote.client.socket.EndpointConnectionPool.establishSiteToSiteConnection(EndpointConnectionPool.java:685)
~[nifi-site-to-site-client-0.6.1.jar:0.6.1]
at
org.apache.nifi.remote.client.socket.EndpointConnectionPool.getEndpointConnection(EndpointConnectionPool.java:301)
~[nifi-site-to-site-client-0.6.1.jar:0.6.1]
at
org.apache.nifi.remote.client.socket.SocketClient.createTransaction(SocketClient.java:129)
~[nifi-site-to-site-client-0.6.1.jar:0.6.1]
at
org.apache.nifi.remote.StandardRemoteGroupPort.onTrigger(StandardRemoteGroupPort.java:171)
~[nifi-site-to-site-0.6.1.jar:0.6.1]
at org.apache.nifi.controller.AbstractPort.onTrigger(AbstractPort.java:227)
[nifi-framework-core-api-0.6.1.jar:0.6.1]
at
org.apache.nifi.controller.tasks.ContinuallyRunConnectableTask.call(ContinuallyRunConnectableTask.java:81)
[nifi-framework-core-0.6.1.jar:0.6.1]
at
org.apache.nifi.controller.tasks.ContinuallyRunConnectableTask.call(ContinuallyRunConnectableTask.java:40)
[nifi-framework-core-0.6.1.jar:0.6.1]
at
org.apache.nifi.controller.scheduling.TimerDrivenSchedulingAgent$1.run(TimerDrivenSchedulingAgent.java:123)
[nifi-framework-core-0.6.1.jar:0.6.1]
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[na:1.8.0_74]
at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
[na:1.8.0_74]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
[na:1.8.0_74]
at
java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
[na:1.8.0_74]
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
[na:1.8.0_74]
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
[na:1.8.0_74]
at java.lang.Thread.run(Thread.java:745) [na:1.8.0_74]
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