@MattWho  This is the entire flow    this is the data I am trying to insert   "Have you tried setting the "Unmatched Column Behavior" property to "Ignore Unmatched Columns" or "Warn on Unmatched Columns" to see if that makes a difference?" Yes I tried that but it fails The CSV reader configurations: Please let me know if you need any other information to help me solve this I am trying to solve this from the past 4 days ... View more

@MattWho  1. I am using java version 21 2. Using Windows 10  Version number (22H2) 3.  I am using Chrome. Tried to use Mozailla it's still same problem. when I click "view content" it open a new tab with request "https://localhost:8443/nifi/#/content-viewer/?ref....." then immediately it changes to "https://localhost:8443/nifi/#/error" I have opened the DevTools and tried to see the response but nothing appears in the response tab  . I am trying to solve this from last week   ... View more

@MattWho  My apache version is 2.7.2  I’m using HTTPS with NiFi’s Single User authentication and file-based authorization. I think it's called standalone (I'm still beginner) The time I performed the request was at 21:58 User-log: 2026-01-21 21:03:30,196 INFO [main] o.a.n.a.single.user.SingleUserAuthorizer Initializing Authorizer 2026-01-21 21:03:30,217 INFO [main] o.a.n.a.single.user.SingleUserAuthorizer Configuring Authorizer 2026-01-21 21:03:41,567 INFO [main] o.a.n.w.s.c.KeyPairGeneratorConfiguration Configured Key Pair Algorithm [Ed25519] for JSON Web Signatures app-log: (٠ bytes) from archive 2026-01-21 21:56:41,684 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Archive cleanup completed for container default; will now allow writing to this container. Bytes used = ١١٩٫٧٧ GB, bytes free = ١١٨٫٥٩ GB, capacity = ٢٣٨٫٣٦ GB 2026-01-21 21:56:46,060 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 3 records in 0 milliseconds 2026-01-21 21:57:06,063 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 3 records in 0 milliseconds 2026-01-21 21:57:26,070 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 3 records in 0 milliseconds 2026-01-21 21:57:41,825 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Successfully deleted 0 files (٠ bytes) from archive 2026-01-21 21:57:41,826 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Archive cleanup completed for container default; will now allow writing to this container. Bytes used = ١١٩٫٨١ GB, bytes free = ١١٨٫٥٥ GB, capacity = ٢٣٨٫٣٦ GB 2026-01-21 21:57:46,080 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 3 records in 0 milliseconds 2026-01-21 21:57:59,744 INFO [NiFi Web Server-43] o.a.n.c.s.StandardProcessScheduler Starting GetFile[id=df248648-019b-1000-d364-3157623c6fa5] 2026-01-21 21:57:59,744 INFO [NiFi Web Server-43] o.a.n.controller.StandardProcessorNode Desired State for GetFile[id=df248648-019b-1000-d364-3157623c6fa5] now set to RUNNING 2026-01-21 21:57:59,750 INFO [Timer-Driven Process Thread-10] o.a.n.c.s.TimerDrivenSchedulingAgent Scheduled GetFile[id=df248648-019b-1000-d364-3157623c6fa5] to run with 1 threads 2026-01-21 21:57:59,769 INFO [Timer-Driven Process Thread-1] o.a.n.p.store.WriteAheadStorePartition Successfully rolled over Event Writer for Provenance Event Store Partition[directory=.\provenance_repository] due to MAX_TIME_REACHED. Event File was ١٨٫٢٦ KB and contained 9 events. 2026-01-21 21:58:00,142 INFO [Flow Service Tasks Thread-2] o.a.nifi.controller.StandardFlowService Saved flow controller org.apache.nifi.controller.FlowController@521c794a // Another save pending = false 2026-01-21 21:58:06,090 INFO [Checkpoint FlowFile Repository] o.a.n.wali.SequentialAccessWriteAheadLog Checkpointed Write-Ahead Log with 4 Records and 0 Swap Files in 5 milliseconds (Stop-the-world time = 2 milliseconds), max Transaction ID 20115 2026-01-21 21:58:06,090 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 4 records in 6 milliseconds 2026-01-21 21:58:18,911 INFO [NiFi Web Server-127] o.a.n.c.s.StandardProcessScheduler Stopping GetFile[id=df248648-019b-1000-d364-3157623c6fa5] 2026-01-21 21:58:18,911 INFO [NiFi Web Server-127] o.a.n.controller.StandardProcessorNode Desired State for GetFile[id=df248648-019b-1000-d364-3157623c6fa5] now set to STOPPED 2026-01-21 21:58:18,912 INFO [Timer-Driven Process Thread-8] o.a.n.c.s.TimerDrivenSchedulingAgent Stopped scheduling GetFile[id=df248648-019b-1000-d364-3157623c6fa5] to run 2026-01-21 21:58:19,027 INFO [Timer-Driven Process Thread-8] o.a.n.controller.StandardProcessorNode GetFile[id=df248648-019b-1000-d364-3157623c6fa5] has completely stopped. Completing any associated Futures. 2026-01-21 21:58:19,450 INFO [Flow Service Tasks Thread-1] o.a.nifi.controller.StandardFlowService Saved flow controller org.apache.nifi.controller.FlowController@521c794a // Another save pending = false 2026-01-21 21:58:24,878 INFO [NiFi Web Server-44] o.a.n.c.queue.AbstractFlowFileQueue Canceling ListFlowFile Request with ID e1ec0fce-019b-1000-58ba-5a4490a069da 2026-01-21 21:58:26,094 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 4 records in 0 milliseconds   ... View more

@vafs I have tried the solution 1 but still it's the same problem. Also the file is not big it's just 1 file with 10 bytes. Here is the last rows of log file: 2026-01-19 21:39:38,488 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Updating StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] to org.apache.nifi.flow.VersionedExternalFlow@4e7e42c4; there are 10 differences to take into account: Processor with ID d4f095c5-019b-1000-590d-c16a641f13bc exists in Proposed Flow but not in Currently Loaded Flow Processor with ID d4e31223-019b-1000-0dc0-bb6a49a42e54 exists in Proposed Flow but not in Currently Loaded Flow Connection with ID d4f0bced-019b-1000-048e-765fab2ec7e4 exists in Proposed Flow but not in Currently Loaded Flow Connection with ID d4e4d8ba-019b-1000-5539-da6aefff28bc exists in Proposed Flow but not in Currently Loaded Flow Processor with ID d043e64b-019b-1000-cd66-0d6bc2e4a711 exists in Proposed Flow but not in Currently Loaded Flow Connection with ID d0450dbc-019b-1000-c6e8-f9c7be7f7295 exists in Proposed Flow but not in Currently Loaded Flow Processor with ID d1b881e7-019b-1000-b6b4-d7188d007cbd exists in Proposed Flow but not in Currently Loaded Flow Processor with ID cfd26ca3-019b-1000-7948-eb8c9ec17195 exists in Proposed Flow but not in Currently Loaded Flow Processor with ID d4f849e2-019b-1000-a95c-364939018b8a exists in Proposed Flow but not in Currently Loaded Flow Connection with ID d5014822-019b-1000-8de6-575ee783acff exists in Proposed Flow but not in Currently Loaded Flow 2026-01-19 21:39:38,562 INFO [main] o.a.nifi.groups.StandardProcessGroup ExtractText[id=d4f849e2-019b-1000-a95c-364939018b8a] added to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,592 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added ExtractText[id=d4f849e2-019b-1000-a95c-364939018b8a] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,600 INFO [main] o.a.nifi.groups.StandardProcessGroup LogAttribute[id=d4f095c5-019b-1000-590d-c16a641f13bc] added to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,602 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added LogAttribute[id=d4f095c5-019b-1000-590d-c16a641f13bc] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,610 INFO [main] o.a.nifi.groups.StandardProcessGroup GenerateFlowFile[id=d1b881e7-019b-1000-b6b4-d7188d007cbd] added to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,611 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added GenerateFlowFile[id=d1b881e7-019b-1000-b6b4-d7188d007cbd] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,624 INFO [main] o.a.nifi.groups.StandardProcessGroup PutFile[id=d043e64b-019b-1000-cd66-0d6bc2e4a711] added to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,625 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added PutFile[id=d043e64b-019b-1000-cd66-0d6bc2e4a711] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,640 INFO [main] o.a.nifi.groups.StandardProcessGroup ReplaceText[id=d4e31223-019b-1000-0dc0-bb6a49a42e54] added to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,641 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added ReplaceText[id=d4e31223-019b-1000-0dc0-bb6a49a42e54] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,647 INFO [main] o.a.nifi.groups.StandardProcessGroup GetFile[id=cfd26ca3-019b-1000-7948-eb8c9ec17195] added to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,648 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added GetFile[id=cfd26ca3-019b-1000-7948-eb8c9ec17195] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,676 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added Connection[ID=d4f0bced-019b-1000-048e-765fab2ec7e4, Source ID=d4e31223-019b-1000-0dc0-bb6a49a42e54, Dest ID=d4f849e2-019b-1000-a95c-364939018b8a] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,678 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added Connection[ID=d4e4d8ba-019b-1000-5539-da6aefff28bc, Source ID=d1b881e7-019b-1000-b6b4-d7188d007cbd, Dest ID=d4e31223-019b-1000-0dc0-bb6a49a42e54] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,679 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added Connection[ID=d5014822-019b-1000-8de6-575ee783acff, Source ID=d4f849e2-019b-1000-a95c-364939018b8a, Dest ID=d4f095c5-019b-1000-590d-c16a641f13bc] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,680 INFO [main] o.a.n.f.s.StandardVersionedComponentSynchronizer Added Connection[ID=d0450dbc-019b-1000-c6e8-f9c7be7f7295, Source ID=cfd26ca3-019b-1000-7948-eb8c9ec17195, Dest ID=d043e64b-019b-1000-cd66-0d6bc2e4a711] to StandardProcessGroup[identifier=cd1c3991-019b-1000-73b3-45a1c5599ab2,name=NiFi Flow] 2026-01-19 21:39:38,710 INFO [main] o.a.n.c.s.VersionedFlowSynchronizer After synchronizing flow, restarting 0 components 2026-01-19 21:39:38,710 INFO [main] o.a.n.c.s.AffectedComponentSet Starting the following components: AffectedComponentSet[inputPorts=[], outputPorts=[], remoteInputPorts=[], remoteOutputPorts=[], processors=[], parameterProviders=[], flowRegistryClients=[], controllerServices=[], reportingTasks=[], flowAnalysisRules=[], statelessProcessGroups=[]] 2026-01-19 21:39:38,711 INFO [main] o.a.n.c.s.VersionedFlowSynchronizer Successfully synchronized dataflow with the proposed flow in 490 millis 2026-01-19 21:39:38,712 INFO [main] o.apache.nifi.controller.FlowController Successfully synchronized controller with proposed flow. Flow contains the following number of components: {Processors=6, Controller Services=0, Reporting Tasks=0, Flow Analysis Rules=0, Process Groups=0, Remote Process Groups=0, Parameter Providers=0, Flow Registry Clients=0, Local Input Ports=0, Local Output Ports=0, Public Input Ports=0, Public Output Ports=0} 2026-01-19 21:39:38,718 INFO [main] o.a.n.c.r.WriteAheadFlowFileRepository Successfully restored 1 FlowFiles and 0 Swap Files 2026-01-19 21:39:38,893 INFO [main] o.apache.nifi.controller.FlowController Scheduled Flow Registry synchronization every 30 min 2026-01-19 21:39:39,007 INFO [main] o.apache.nifi.controller.FlowController Performed initial validation of all components in 19 milliseconds 2026-01-19 21:39:39,007 INFO [main] o.apache.nifi.controller.FlowController Starting 0 Stateless Process Groups 2026-01-19 21:39:39,008 INFO [main] o.apache.nifi.controller.FlowController Starting 0 processors/ports/funnels 2026-01-19 21:39:39,008 INFO [main] o.apache.nifi.controller.FlowController Started 0 Remote Group Ports transmitting 2026-01-19 21:39:39,008 INFO [main] o.a.n.w.c.ApplicationStartupContextListener Flow Controller started successfully. 2026-01-19 21:39:40,717 INFO [main] o.e.j.ee11.servlet.ServletContextHandler Started oeje11w.WebAppContext@7845b21a{nifi-api,/nifi-api,b=file:///C:/nifi-2.7.2-bin/nifi-2.7.2/work/jetty/nifi-web-api-2.7.2.war/webapp/,a=AVAILABLE,h=oeje11s.SessionHandler@1a0d313{STARTED}}{.\work\nar\extensions\nifi-server-nar-2.7.2.nar-unpacked\NAR-INF\bundled-dependencies\nifi-web-api-2.7.2.war} 2026-01-19 21:39:41,246 INFO [main] o.e.j.s.handler.ContextHandler._nifi No Spring WebApplicationInitializer types detected on classpath 2026-01-19 21:39:41,305 INFO [main] o.e.jetty.server.handler.ContextHandler Started oeje11w.WebAppContext@123fb86b{/nifi,/nifi,b=file:///C:/nifi-2.7.2-bin/nifi-2.7.2/work/jetty/nifi-ui-2.7.2.war/webapp/,a=AVAILABLE,h=oeje11s.SessionHandler@7d053139{STARTED}}{.\work\nar\extensions\nifi-server-nar-2.7.2.nar-unpacked\NAR-INF\bundled-dependencies\nifi-ui-2.7.2.war} 2026-01-19 21:39:41,310 INFO [main] o.e.j.ee11.servlet.ServletContextHandler Started oeje11w.WebAppContext@123fb86b{/nifi,/nifi,b=file:///C:/nifi-2.7.2-bin/nifi-2.7.2/work/jetty/nifi-ui-2.7.2.war/webapp/,a=AVAILABLE,h=oeje11s.SessionHandler@7d053139{STARTED}}{.\work\nar\extensions\nifi-server-nar-2.7.2.nar-unpacked\NAR-INF\bundled-dependencies\nifi-ui-2.7.2.war} 2026-01-19 21:39:41,347 INFO [main] o.eclipse.jetty.server.AbstractConnector Started oejs.ServerConnector@4251661c{SSL, (ssl, alpn, h2, http/1.1)}{localhost:٨٤٤٣} 2026-01-19 21:39:41,348 INFO [main] org.eclipse.jetty.server.Server Started oejs.Server@37a0ec3c{STARTING}[12.1.5,sto=٠] @33077ms 2026-01-19 21:39:41,351 INFO [main] org.apache.nifi.web.server.JettyServer Started Server on https://localhost:8443/nifi 2026-01-19 21:39:41,374 INFO [main] o.a.n.runtime.StandardManagementServer Started Management Server on http://127.0.0.1:9990 2026-01-19 21:39:41,376 INFO [main] org.apache.nifi.runtime.Application Started Application in 41.014 seconds (41014935800 ns) 2026-01-19 21:39:58,724 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:40:01,600 INFO [NiFi Web Server-144] o.a.s.c.u.s.b.BouncyCastleSecurityProviderRegistrar getOrCreateProvider(BC) created instance of org.bouncycastle.jce.provider.BouncyCastleProvider 2026-01-19 21:40:10,074 INFO [NiFi Web Server-113] o.a.n.c.queue.AbstractFlowFileQueue Canceling ListFlowFile Request with ID d78ea333-019b-1000-15f9-41102ef45dce 2026-01-19 21:40:18,739 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:40:31,730 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Successfully deleted 0 files (٠ bytes) from archive 2026-01-19 21:40:31,731 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Archive cleanup completed for container default; will now allow writing to this container. Bytes used = ١٢٣٫٣٢ GB, bytes free = ١١٥٫٠٤ GB, capacity = ٢٣٨٫٣٦ GB 2026-01-19 21:40:38,743 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:40:58,757 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:41:18,762 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:41:22,925 INFO [Write-Ahead Local State Provider Maintenance] o.a.n.wali.SequentialAccessWriteAheadLog Checkpointed Write-Ahead Log with 3 Records and 0 Swap Files in 18 milliseconds (Stop-the-world time = 7 milliseconds), max Transaction ID 47 2026-01-19 21:41:31,861 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Successfully deleted 0 files (٠ bytes) from archive 2026-01-19 21:41:31,862 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Archive cleanup completed for container default; will now allow writing to this container. Bytes used = ١٢٣٫٣٢ GB, bytes free = ١١٥٫٠٤ GB, capacity = ٢٣٨٫٣٦ GB 2026-01-19 21:41:38,773 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:41:58,779 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:42:18,787 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds 2026-01-19 21:42:31,955 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Successfully deleted 0 files (٠ bytes) from archive 2026-01-19 21:42:31,956 INFO [Cleanup Archive for default] o.a.n.c.repository.FileSystemRepository Archive cleanup completed for container default; will now allow writing to this container. Bytes used = ١٢٣٫٣٣ GB, bytes free = ١١٥٫٠٣ GB, capacity = ٢٣٨٫٣٦ GB 2026-01-19 21:42:38,794 INFO [Checkpoint FlowFile Repository] o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile Repository with 1 records in 0 milliseconds ... View more