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https://issues.apache.org/jira/browse/NIFI-5752?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16677817#comment-16677817
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ASF GitHub Bot commented on NIFI-5752:
--------------------------------------
Github user asfgit closed the pull request at:
https://github.com/apache/nifi/pull/3110
> Load balancing fails with wildcard certs
> ----------------------------------------
>
> Key: NIFI-5752
> URL: https://issues.apache.org/jira/browse/NIFI-5752
> Project: Apache NiFi
> Issue Type: Bug
> Affects Versions: 1.8.0
> Reporter: Kotaro Terada
> Assignee: Kotaro Terada
> Priority: Major
> Fix For: 1.9.0
>
>
> Load balancing fails when we construct a secure cluster with wildcard certs.
> For example, assume that we have a valid wildcard cert for {{*.example.com}}
> and a cluster consists of {{nf1.example.com}}, {{nf2.example.com}}, and
> {{nf3.example.com}} . We cannot transfer a FlowFile between nodes for load
> balancing because of the following authorization error:
> {noformat}
> 2018-10-25 19:05:13,520 WARN [Load Balance Server Thread-2]
> o.a.n.c.q.c.s.ClusterLoadBalanceAuthorizer Authorization failed for Client
> ID's [*.example.com] to Load Balance data because none of the ID's are known
> Cluster Node Identifiers
> 2018-10-25 19:05:13,521 ERROR [Load Balance Server Thread-2]
> o.a.n.c.q.c.s.ConnectionLoadBalanceServer Failed to communicate with Peer
> /xxx.xxx.xxx.xxx:xxxxx
> org.apache.nifi.controller.queue.clustered.server.NotAuthorizedException:
> Client ID's [*.example.com] are not authorized to Load Balance data
> at
> org.apache.nifi.controller.queue.clustered.server.ClusterLoadBalanceAuthorizer.authorize(ClusterLoadBalanceAuthorizer.java:65)
> at
> org.apache.nifi.controller.queue.clustered.server.StandardLoadBalanceProtocol.receiveFlowFiles(StandardLoadBalanceProtocol.java:142)
> at
> org.apache.nifi.controller.queue.clustered.server.ConnectionLoadBalanceServer$CommunicateAction.run(ConnectionLoadBalanceServer.java:176)
> at
> java.util.concurrent.Executors$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)
> {noformat}
> This problem occurs because in {{authorize}} method in
> {{ClusterLoadBalanceAuthorizer}} class, authorization is tried by just
> matching strings.
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