[NIFI-4898] Remote Process Group in a SSL setup generates Java Exception

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Not A Problem
• Affects Version/s: 1.5.0
• Environment: NiFi Version 1.5.0 ; Java 1.8.0_161-b12 ; CentOS Linux release 7.4.1708
• Assignee: Unassigned
• Reporter: Josef Zahner
• Created: 21/Feb/18 09:55
• Updated: 19/Nov/19 13:37
• Resolved: 19/Nov/19 13:37

Description

In a SSL secured NiFi setup, doesn't matter whether it is a cluster or not, NiFi creates a Java exception as soon as I create a "Remote Process Group". It doesn't mater which URL (even one which doesn't exists) I insert or if I choose RAW or HTTP, the error is always the same and occurs as soon as I click "add" on the "Remote Process Group".

On NiFi 1.4.0 this works without any issues.

Error:

2018-02-21 10:42:10,006 ERROR [Remote Process Group b7bde0cc-0161-1000-2e7f-3167a78d8386 Thread-1] org.apache.nifi.engine.FlowEngine A flow controller task execution stopped abnormally
java.util.concurrent.ExecutionException: java.lang.NoSuchMethodError: org.apache.http.impl.client.HttpClientBuilder.setSSLContext(Ljavax/net/ssl/SSLContext;)Lorg/apache/http/impl/client/HttpClientBuilder;
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at org.apache.nifi.engine.FlowEngine.afterExecute(FlowEngine.java:100)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchMethodError: org.apache.http.impl.client.HttpClientBuilder.setSSLContext(Ljavax/net/ssl/SSLContext;)Lorg/apache/http/impl/client/HttpClientBuilder;
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.setupClient(SiteToSiteRestApiClient.java:278)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getHttpClient(SiteToSiteRestApiClient.java:219)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.execute(SiteToSiteRestApiClient.java:1189)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.execute(SiteToSiteRestApiClient.java:1237)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.fetchController(SiteToSiteRestApiClient.java:419)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getController(SiteToSiteRestApiClient.java:394)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getController(SiteToSiteRestApiClient.java:361)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getController(SiteToSiteRestApiClient.java:346)
at org.apache.nifi.remote.StandardRemoteProcessGroup.refreshFlowContents(StandardRemoteProcessGroup.java:842)
at org.apache.nifi.remote.StandardRemoteProcessGroup.lambda$initialize$0(StandardRemoteProcessGroup.java:193)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.run(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
... 3 common frames omitted
2018-02-21 10:42:10,009 ERROR [Remote Process Group b7bde0cc-0161-1000-2e7f-3167a78d8386 Thread-1] org.apache.nifi.engine.FlowEngine A flow controller task execution stopped abnormally
java.util.concurrent.ExecutionException: java.lang.NoSuchMethodError: org.apache.http.impl.client.HttpClientBuilder.setSSLContext(Ljavax/net/ssl/SSLContext;)Lorg/apache/http/impl/client/HttpClientBuilder;
at java.util.concurrent.FutureTask.report(Unknown Source)
at java.util.concurrent.FutureTask.get(Unknown Source)
at org.apache.nifi.engine.FlowEngine.afterExecute(FlowEngine.java:100)
at java.util.concurrent.ThreadPoolExecutor.runWorker(Unknown Source)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.NoSuchMethodError: org.apache.http.impl.client.HttpClientBuilder.setSSLContext(Ljavax/net/ssl/SSLContext;)Lorg/apache/http/impl/client/HttpClientBuilder;
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.setupClient(SiteToSiteRestApiClient.java:278)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getHttpClient(SiteToSiteRestApiClient.java:219)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.execute(SiteToSiteRestApiClient.java:1189)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.execute(SiteToSiteRestApiClient.java:1237)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.fetchController(SiteToSiteRestApiClient.java:419)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getController(SiteToSiteRestApiClient.java:394)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getController(SiteToSiteRestApiClient.java:361)
at org.apache.nifi.remote.util.SiteToSiteRestApiClient.getController(SiteToSiteRestApiClient.java:346)
at org.apache.nifi.remote.StandardRemoteProcessGroup$InitializationTask.run(StandardRemoteProcessGroup.java:1177)
at java.util.concurrent.Executors$RunnableAdapter.call(Unknown Source)
at java.util.concurrent.FutureTask.runAndReset(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(Unknown Source)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(Unknown Source)
... 3 common frames omitted
2018-02-21 10:42:10,308 INFO [Flow Service Tasks Thread-1] o.a.nifi.controller.StandardFlowService Saved flow controller org.apache.nifi.controller.FlowController@d978a3e // Another save pending = false