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Posted to issues@nifi.apache.org by "Mark Payne (JIRA)" <ji...@apache.org> on 2016/07/20 19:27:20 UTC
[jira] [Updated] (NIFI-2333) When a flow consists only of
controller-level reporting tasks/controller services, nodes cannot rejoin
cluster once they have disconnected
[ https://issues.apache.org/jira/browse/NIFI-2333?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Mark Payne updated NIFI-2333:
-----------------------------
Status: Patch Available (was: Open)
> When a flow consists only of controller-level reporting tasks/controller services, nodes cannot rejoin cluster once they have disconnected
> ------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: NIFI-2333
> URL: https://issues.apache.org/jira/browse/NIFI-2333
> Project: Apache NiFi
> Issue Type: Bug
> Components: Core Framework
> Affects Versions: 1.0.0
> Reporter: Mark Payne
> Assignee: Mark Payne
> Priority: Blocker
> Fix For: 1.0.0
>
>
> I have a cluster with 3 nodes. If I disconnect and reconnect a node with nothing in the flow, all works okay. If I add processors to the graph, all works okay. But if I have no components on the graph but define controller-level controller services or reporting tasks, then when I disconnect the node it fails to reconnect when I click 'reconnect'. I end up with the following stack trace:
> 2016-07-20 15:19:28,259 ERROR [Reconnect to Cluster] o.a.nifi.controller.StandardFlowService Handling reconnection request failed due to: org.apache.nifi.controller.serialization.FlowSynchronizationException: Failed to connect node to cluster because local flow controller partially updated. Administrator should disconnect node and review flow for corruption.
> org.apache.nifi.controller.serialization.FlowSynchronizationException: Failed to connect node to cluster because local flow controller partially updated. Administrator should disconnect node and review flow for corruption.
> at org.apache.nifi.controller.StandardFlowService.loadFromConnectionResponse(StandardFlowService.java:869) [nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.StandardFlowService.handleReconnectionRequest(StandardFlowService.java:591) [nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.StandardFlowService.access$300(StandardFlowService.java:97) [nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.StandardFlowService$2.run(StandardFlowService.java:403) [nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at java.lang.Thread.run(Thread.java:745) [na:1.8.0_60]
> Caused by: org.apache.nifi.controller.serialization.FlowSynchronizationException: java.lang.IllegalStateException: The specified observer identifier already exists.
> at org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:358) ~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.FlowController.synchronize(FlowController.java:1375) ~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.persistence.StandardXMLFlowConfigurationDAO.load(StandardXMLFlowConfigurationDAO.java:81) ~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.StandardFlowService.loadFromBytes(StandardFlowService.java:670) [nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.StandardFlowService.loadFromConnectionResponse(StandardFlowService.java:841) [nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> ... 4 common frames omitted
> Caused by: java.lang.IllegalStateException: The specified observer identifier already exists.
> at org.apache.nifi.logging.repository.StandardLogRepository.addObserver(StandardLogRepository.java:134) ~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.FlowController.createReportingTask(FlowController.java:2734) ~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.StandardFlowSynchronizer.addReportingTask(StandardFlowSynchronizer.java:467) ~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> at org.apache.nifi.controller.StandardFlowSynchronizer.sync(StandardFlowSynchronizer.java:326) ~[nifi-framework-core-1.0.0-SNAPSHOT.jar:1.0.0-SNAPSHOT]
> ... 8 common frames omitted
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