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https://issues.apache.org/jira/browse/NIFI-6886?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16978486#comment-16978486
]
Bryan Bende commented on NIFI-6886:
-----------------------------------
{code:java}
2019-11-20 09:27:21,909 WARN [Timer-Driven Process Thread-1]
o.a.n.r.SiteToSiteStatusReportingTask
SiteToSiteStatusReportingTask[id=8822b0f4-016e-1000-b27f-6f436f433682]
org.apache.nifi.remote.client.PeerSelector@3f30d808 Unable to refresh Remote
Group's peers due to null
2019-11-20 09:27:21,909 WARN [NiFi Site-to-Site Connection Pool Maintenance]
o.a.n.r.SiteToSiteStatusReportingTask
SiteToSiteStatusReportingTask[id=8822b0f4-016e-1000-b27f-6f436f433682]
org.apache.nifi.remote.client.PeerSelector@3f30d808 Unable to refresh Remote
Group's peers due to null
2019-11-20 09:27:21,912 DEBUG [NiFi Site-to-Site Connection Pool Maintenance]
o.apache.nifi.remote.client.PeerSelector
java.lang.NullPointerException: null
at
org.apache.nifi.remote.client.PeerSelector.persistPeerStatuses(PeerSelector.java:112)
at
org.apache.nifi.remote.client.PeerSelector.refreshPeers(PeerSelector.java:306)
at
org.apache.nifi.remote.client.socket.EndpointConnectionPool$2.run(EndpointConnectionPool.java:129)
at java.util.concurrent.Executors$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)
2019-11-20 09:27:21,912 DEBUG [Timer-Driven Process Thread-1]
o.apache.nifi.remote.client.PeerSelector
java.lang.NullPointerException: null
at
org.apache.nifi.remote.client.PeerSelector.persistPeerStatuses(PeerSelector.java:112)
at
org.apache.nifi.remote.client.PeerSelector.refreshPeers(PeerSelector.java:306)
at
org.apache.nifi.remote.client.PeerSelector.createPeerStatusList(PeerSelector.java:268)
at
org.apache.nifi.remote.client.PeerSelector.getPeerStatuses(PeerSelector.java:237)
at
org.apache.nifi.remote.client.socket.EndpointConnectionPool.getEndpointConnection(EndpointConnectionPool.java:169)
at
org.apache.nifi.remote.client.socket.SocketClient.createTransaction(SocketClient.java:128)
at
org.apache.nifi.reporting.SiteToSiteStatusReportingTask.onTrigger(SiteToSiteStatusReportingTask.java:162)
at
org.apache.nifi.controller.tasks.ReportingTaskWrapper.run(ReportingTaskWrapper.java:44)
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}
> Unable to refresh Remote Group's peers due to null
> --------------------------------------------------
>
> Key: NIFI-6886
> URL: https://issues.apache.org/jira/browse/NIFI-6886
> Project: Apache NiFi
> Issue Type: Bug
> Components: Extensions
> Affects Versions: 1.10.0
> Environment: Linux CentOS 7 x64
> Reporter: Eduardo Mota Fontes
> Priority: Major
>
> If you create SiteToSiteBulletinReportingTask pointing to cluster itself to
> an arbitrary input port it generates Bulletin in every execution:
> WARNING
> *SiteToSiteBulletinReportingTask[id=843df3f5-016e-1000-15f0-c32647b2a675]
> org.apache.nifi.remote.client.PeerSelector@48a5201e Unable to refresh Remote
> Group's peers due to null*
> This log appears in nifi-app.log too.
> Try to debug this error, I figure out that has a new PeerSelector
> implementation in version 1.10.0 and the error occurs when it tries to save
> the Peers State.
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