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Posted to issues@nifi.apache.org by "Andy LoPresto (JIRA)" <ji...@apache.org> on 2019/04/10 04:57:00 UTC
[jira] [Commented] (NIFI-6201) Suppress stacktrace on connection
refused when NiFi Registry is not running
[ https://issues.apache.org/jira/browse/NIFI-6201?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16814041#comment-16814041 ]
Andy LoPresto commented on NIFI-6201:
-------------------------------------
Additional unnecessary stacktraces suppressed by this ticket:
Unable to enable controller service because bundle is missing:
{code}
2019-04-09 20:12:24,441 WARN [main] o.a.n.c.s.StandardControllerServiceProvider Failed to enable service GhostControllerService[id=cc741505-0169-1000-5721-b966b6cc8fd6, type=org.influxdata.nifi.services.StandardInfluxDatabaseService]
java.util.concurrent.ExecutionException: java.lang.RuntimeException: org.apache.nifi.controller.service.StandardControllerServiceNode$2@38f02eaf cannot be enabled because it is not currently valid. Will try again in 5 seconds.
at java.util.concurrent.CompletableFuture.reportGet(CompletableFuture.java:357)
at java.util.concurrent.CompletableFuture.get(CompletableFuture.java:1915)
at org.apache.nifi.controller.service.StandardControllerServiceProvider.enableControllerServices(StandardControllerServiceProvider.java:208)
at org.apache.nifi.controller.service.ControllerServiceLoader.enableControllerServices(ControllerServiceLoader.java:167)
at org.apache.nifi.controller.service.ControllerServiceLoader.enableControllerServices(ControllerServiceLoader.java:155)
at org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1242)
at org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1389)
at org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:362)
at org.apache.nifi.controller.FlowController.synchronize(FlowController.java:1296)
at org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.load(StandardXMLFlowConfigurationDAO.java:88)
at org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:812)
at org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:557)
at org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextInitialized(ApplicationStartupContextListener.java:72)
at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:953)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:558)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:918)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:370)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1497)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1459)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:848)
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:287)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:108)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:403)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:167)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.server.Server.start(Server.java:419)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:108)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.Server.doStart(Server.java:386)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:935)
at org.apache.nifi.NiFi.<init>(NiFi.java:158)
at org.apache.nifi.NiFi.<init>(NiFi.java:72)
at org.apache.nifi.NiFi.main(NiFi.java:297)
Caused by: java.lang.RuntimeException: org.apache.nifi.controller.service.StandardControllerServiceNode$2@38f02eaf cannot be enabled because it is not currently valid. Will try again in 5 seconds.
at org.apache.nifi.controller.service.StandardControllerServiceNode$2.run(StandardControllerServiceNode.java:430)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
{code}
Unable to create processor because bundle is missing:
{code}
2019-04-09 20:12:24,453 ERROR [main] o.a.nifi.controller.ExtensionBuilder Could not create Processor of type org.influxdata.nifi.processors.PutInfluxDatabaseRecord for ID cc1f29fb-0169-1000-5064-8ae58b29bbcc; creating "Ghost" implementation
org.apache.nifi.controller.exception.ProcessorInstantiationException: org.influxdata.nifi.processors.PutInfluxDatabaseRecord
at org.apache.nifi.controller.ExtensionBuilder.createLoggableProcessor(ExtensionBuilder.java:425)
at org.apache.nifi.controller.ExtensionBuilder.buildProcessor(ExtensionBuilder.java:191)
at org.apache.nifi.controller.flow.StandardFlowManager.createProcessor(StandardFlowManager.java:298)
at org.apache.nifi.controller.flow.StandardFlowManager.createProcessor(StandardFlowManager.java:274)
at org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1262)
at org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1389)
at org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:362)
at org.apache.nifi.controller.FlowController.synchronize(FlowController.java:1296)
at org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.load(StandardXMLFlowConfigurationDAO.java:88)
at org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:812)
at org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:557)
at org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextInitialized(ApplicationStartupContextListener.java:72)
at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:953)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:558)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:918)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:370)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1497)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1459)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:848)
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:287)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:108)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:403)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:167)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.server.Server.start(Server.java:419)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:108)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.Server.doStart(Server.java:386)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:935)
at org.apache.nifi.NiFi.<init>(NiFi.java:158)
at org.apache.nifi.NiFi.<init>(NiFi.java:72)
at org.apache.nifi.NiFi.main(NiFi.java:297)
Caused by: java.lang.IllegalStateException: Unable to find bundle for coordinate org.influxdata.nifi:nifi-influx-database-nar:1.1-SNAPSHOT
at org.apache.nifi.controller.ExtensionBuilder.createLoggableComponent(ExtensionBuilder.java:451)
at org.apache.nifi.controller.ExtensionBuilder.createLoggableProcessor(ExtensionBuilder.java:417)
... 49 common frames omitted
{code}
Unable to connect to remote process group due to connection timeout:
{code}
2019-04-09 20:12:55,309 WARN [Remote Process Group 9b3b1bc4-0169-1000-46fc-9f4dd4a0b515 Thread-1] o.a.n.remote.StandardRemoteProcessGroup Unable to communicate with remote instance RemoteProcessGroup[http://192.168.0.100:8080/nifi]
org.apache.nifi.controller.exception.CommunicationsException: org.apache.nifi.controller.exception.CommunicationsException: Unable to communicate with Remote NiFi at URI http://192.168.0.100:8080/nifi due to: Connect to 192.168.0.100:8080 [/192.168.0.100] failed: connect timed out
at org.apache.nifi.remote.StandardRemoteProcessGroup.refreshFlowContents(StandardRemoteProcessGroup.java:880)
at org.apache.nifi.remote.StandardRemoteProcessGroup.lambda$initialize$0(StandardRemoteProcessGroup.java:190)
at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
at java.util.concurrent.FutureTask.run(FutureTask.java:266)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$201(ScheduledThreadPoolExecutor.java:180)
at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:293)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.apache.nifi.controller.exception.CommunicationsException: Unable to communicate with Remote NiFi at URI http://192.168.0.100:8080/nifi due to: Connect to 192.168.0.100:8080 [/192.168.0.100] failed: connect timed out
at org.apache.nifi.remote.StandardRemoteProcessGroup.refreshFlowContents(StandardRemoteProcessGroup.java:842)
... 9 common frames omitted
{code}
Unable to create controller service due to bundle missing:
{code}
2019-04-09 21:37:06,059 ERROR [main] o.a.nifi.controller.ExtensionBuilder Could not create Controller Service of type org.influxdata.nifi.services.StandardInfluxDatabaseService for ID cc741505-0169-1000-5721-b966b6cc8fd6; creating "Ghost" implementation
java.lang.IllegalStateException: Unable to find bundle for coordinate org.influxdata.nifi:nifi-influx-database-nar:1.1-SNAPSHOT
at org.apache.nifi.controller.ExtensionBuilder.createControllerServiceNode(ExtensionBuilder.java:383)
at org.apache.nifi.controller.ExtensionBuilder.buildControllerService(ExtensionBuilder.java:315)
at org.apache.nifi.controller.flow.StandardFlowManager.createControllerService(StandardFlowManager.java:617)
at org.apache.nifi.controller.service.ControllerServiceLoader.createControllerService(ControllerServiceLoader.java:208)
at org.apache.nifi.controller.service.ControllerServiceLoader.loadControllerServices(ControllerServiceLoader.java:114)
at org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1241)
at org.apache.nifi.controller.StandardFlowSynchronizer.addProcessGroup(StandardFlowSynchronizer.java:1389)
at org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:362)
at org.apache.nifi.controller.FlowController.synchronize(FlowController.java:1296)
at org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.load(StandardXMLFlowConfigurationDAO.java:88)
at org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:812)
at org.apache.nifi.controller.StandardFlowService.load(StandardFlowService.java:557)
at org.apache.nifi.web.contextlistener.ApplicationStartupContextListener.contextInitialized(ApplicationStartupContextListener.java:72)
at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:953)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:558)
at org.eclipse.jetty.server.handler.ContextHandler.startContext(ContextHandler.java:918)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:370)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1497)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1459)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:848)
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:287)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:545)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:108)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.handler.gzip.GzipHandler.doStart(GzipHandler.java:403)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:167)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:117)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:138)
at org.eclipse.jetty.server.Server.start(Server.java:419)
at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart(ContainerLifeCycle.java:108)
at org.eclipse.jetty.server.handler.AbstractHandler.doStart(AbstractHandler.java:113)
at org.eclipse.jetty.server.Server.doStart(Server.java:386)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68)
at org.apache.nifi.web.server.JettyServer.start(JettyServer.java:935)
at org.apache.nifi.NiFi.<init>(NiFi.java:158)
at org.apache.nifi.NiFi.<init>(NiFi.java:72)
at org.apache.nifi.NiFi.main(NiFi.java:297)
{code}
> Suppress stacktrace on connection refused when NiFi Registry is not running
> ---------------------------------------------------------------------------
>
> Key: NIFI-6201
> URL: https://issues.apache.org/jira/browse/NIFI-6201
> Project: Apache NiFi
> Issue Type: Improvement
> Components: Core Framework, Extensions
> Affects Versions: 1.9.2
> Reporter: Andy LoPresto
> Assignee: Andy LoPresto
> Priority: Major
> Labels: beginner, error, log, registry
>
> When NiFi is running and the flow has a Registry Client configured to connect to the NiFi Registry, but the Registry instance is not running or is not avzailable, long stacktraces are output in the {{nifi-app.log}}. While these events are important, the long stacktraces are unnecessary as the cause is clear -- "Connection refused". These exceptions should be caught and logged properly.
> Sufficient:
> {code}
> 2019-04-09 19:51:04,100 ERROR [Timer-Driven Process Thread-4] o.a.nifi.groups.StandardProcessGroup Failed to synchronize StandardProcessGroup[identifier=9b59e11e-0169-1000-cb5a-8291e22101f8] with Flow Registry because could not retrieve version 2 of flow with identifier 39ba9057-eaee-4ded-bc61-ce6d4d47d164 in bucket aa2f984d-fca4-4b0b-a5a2-c21b3910d1b6
> java.net.ConnectException: Connection refused (Connection refused)
> {code}
> Unnecessary (current state):
> {code}
> 2019-04-09 19:53:04,121 ERROR [Timer-Driven Process Thread-8] o.a.nifi.groups.StandardProcessGroup Failed to synchronize StandardProcessGroup[identifier=9b59e11e-0169-1000-cb5a-8291e22101f8] with Flow Registry because could not retrieve version 2 of flow with identifier 39ba9057-eaee-4ded-bc61-ce6d4d47d164 in bucket aa2f984d-fca4-4b0b-a5a2-c21b3910d1b6
> java.net.ConnectException: Connection refused (Connection refused)
> at java.net.PlainSocketImpl.socketConnect(Native Method)
> at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)
> at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)
> at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)
> at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)
> at java.net.Socket.connect(Socket.java:589)
> at sun.net.NetworkClient.doConnect(NetworkClient.java:175)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:463)
> at sun.net.www.http.HttpClient.openServer(HttpClient.java:558)
> at sun.net.www.http.HttpClient.<init>(HttpClient.java:242)
> at sun.net.www.http.HttpClient.New(HttpClient.java:339)
> at sun.net.www.http.HttpClient.New(HttpClient.java:357)
> at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220)
> at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156)
> at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050)
> at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984)
> at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564)
> at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)
> at java.net.HttpURLConnection.getResponseCode(HttpURLConnection.java:480)
> at org.glassfish.jersey.client.internal.HttpUrlConnector._apply(HttpUrlConnector.java:390)
> at org.glassfish.jersey.client.internal.HttpUrlConnector.apply(HttpUrlConnector.java:282)
> at org.glassfish.jersey.client.ClientRuntime.invoke(ClientRuntime.java:278)
> at org.glassfish.jersey.client.JerseyInvocation.lambda$invoke$1(JerseyInvocation.java:767)
> at org.glassfish.jersey.internal.Errors.process(Errors.java:316)
> at org.glassfish.jersey.internal.Errors.process(Errors.java:298)
> at org.glassfish.jersey.internal.Errors.process(Errors.java:229)
> at org.glassfish.jersey.process.internal.RequestScope.runInScope(RequestScope.java:414)
> at org.glassfish.jersey.client.JerseyInvocation.invoke(JerseyInvocation.java:765)
> at org.glassfish.jersey.client.JerseyInvocation$Builder.method(JerseyInvocation.java:428)
> at org.glassfish.jersey.client.JerseyInvocation$Builder.get(JerseyInvocation.java:324)
> at org.apache.nifi.registry.client.impl.JerseyFlowSnapshotClient.lambda$get$1(JerseyFlowSnapshotClient.java:104)
> at org.apache.nifi.registry.client.impl.AbstractJerseyClient.executeAction(AbstractJerseyClient.java:71)
> at org.apache.nifi.registry.client.impl.JerseyFlowSnapshotClient.get(JerseyFlowSnapshotClient.java:97)
> at org.apache.nifi.registry.flow.RestBasedFlowRegistry.getFlowContents(RestBasedFlowRegistry.java:206)
> at org.apache.nifi.registry.flow.RestBasedFlowRegistry.getFlowContents(RestBasedFlowRegistry.java:220)
> at org.apache.nifi.groups.StandardProcessGroup.synchronizeWithFlowRegistry(StandardProcessGroup.java:3258)
> at org.apache.nifi.controller.FlowController$5.run(FlowController.java:820)
> at org.apache.nifi.engine.FlowEngine$2.run(FlowEngine.java:110)
> at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
> at java.util.concurrent.FutureTask.runAndReset(FutureTask.java:308)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.access$301(ScheduledThreadPoolExecutor.java:180)
> at java.util.concurrent.ScheduledThreadPoolExecutor$ScheduledFutureTask.run(ScheduledThreadPoolExecutor.java:294)
> at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
> at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
> at java.lang.Thread.run(Thread.java:748)
> {code}
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