Hi Mark, We just submitted this one: https://issues.apache.org/jira/browse/NIFI-9056
Another one will be on the way today/tomorrow for Relationship Load Balancing issues. Ryan On Tue, Aug 17, 2021 at 10:17 AM Mark Payne <marka...@hotmail.com> wrote: > Ryan, > > Have you filed Jiras for these? If so, can you share the links? > > Thanks > -Mark > > On Aug 16, 2021, at 9:32 PM, Ryan Hendrickson < > ryan.andrew.hendrick...@gmail.com> wrote: > > Axel, > We've had significant issues with 1.13.2 in a Cluster as well. We're > working on a test config... Issues range from abandoned FlowFiles, single > Nodes locking the entire cluster, load balance relationships not working, > and undocumented nifi properties. We're reluctant to move to 1.14.0 > because we haven't seen anything specifically fixed in it. > > Please keep the community up-to-date on your findings. > > Ryan > > On Mon, Aug 16, 2021 at 11:00 AM Pierre Villard < > pierre.villard...@gmail.com> wrote: > >> Hi, >> >> What's the version of ZK? >> >> Thanks, >> Pierre >> >> Le jeu. 12 août 2021 à 09:55, Axel Schwarz <axelkop...@emailn.de> a >> écrit : >> >>> Dear all, >>> >>> after successfully battling the load balancing and installing Version >>> 1.13.2 again in our 3 node production environment, we experienced another >>> failure in the cluster resulting in a complete cut-off of the flow just >>> 1,5h after the update. >>> We noticed it just by trying to access the webinterface, which >>> immediately after login showed something like: >>> >>> "Cannot replicate request to Node nifiHost1.contoso.com:8443 >>> <http://nifihost1.contoso.com:8443/> because the node is not connected" >>> >>> There was nothing we could do through the webinterface aside from >>> staring at this message and when looking at the live logs, there was >>> nothing suspicious. The log moved on as if nothing happened. >>> After a restart of the cluster everything was working fine again, but we >>> saw, that the entire flow wasn't working for some period of time. This >>> alone is really uncool, as we running a cluster for exactly that reason: >>> The flow should keep working, even if some node decides to malfunction for >>> whatever reason. >>> >>> Digging a little deeper into the logs showed two noticable problems: >>> >>> 1. The Zookeeper is restarting every few minutes. Which in the log >>> always looks like this: >>> >>> ------------------------------------(nifiHost1.contoso.com >>> <http://nifihost1.contoso.com/>) >>> nifi-app.log------------------------------------------------------------------------------------ >>> >>> 2021-08-11 12:02:39,187 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> 2021-08-11 12:02:39,187 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer shutting down >>> 2021-08-11 12:02:39,194 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.z.server.FinalRequestProcessor shutdown of request processor complete >>> 2021-08-11 12:02:39,196 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.z.server.SyncRequestProcessor Shutting down >>> 2021-08-11 12:02:39,196 INFO [SyncThread:1] >>> o.a.z.server.SyncRequestProcessor SyncRequestProcessor exited! >>> 2021-08-11 12:02:39,199 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer minSessionTimeout set to 4000 >>> 2021-08-11 12:02:39,200 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer maxSessionTimeout set to 40000 >>> 2021-08-11 12:02:39,200 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Created server with tickTime 2000 >>> minSessionTimeout 4000 maxSessionTimeout 40000 datadir >>> /opt/nifi/logs/zookeeper/version-2 snapdir >>> /opt/nifi/state/zookeeper/version-2 >>> 2021-08-11 12:02:39,276 ERROR [Timer-Driven Process >>> Thread-27-EventThread] org.apache.zookeeper.ClientCnxn Error while calling >>> watcher >>> java.lang.NullPointerException: null >>> at >>> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:535) >>> at >>> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:510) >>> 2021-08-11 12:02:39,277 INFO [main-EventThread] >>> o.a.c.f.state.ConnectionStateManager State change: SUSPENDED >>> 2021-08-11 12:02:40,001 INFO [main-EventThread] >>> o.a.c.f.state.ConnectionStateManager State change: RECONNECTED >>> 2021-08-11 12:02:40,006 INFO [Curator-ConnectionStateManager-0] >>> o.a.n.c.l.e.CuratorLeaderElectionManager >>> org.apache.nifi.controller.leader.election.CuratorLeaderElectionManager$ElectionListener@1d37e350 >>> Connection State changed to SUSPENDED >>> 2021-08-11 12:02:40,006 INFO [Curator-ConnectionStateManager-0] >>> o.a.n.c.l.e.CuratorLeaderElectionManager >>> org.apache.nifi.controller.leader.election.CuratorLeaderElectionManager$ElectionListener@1908642e >>> Connection State changed to SUSPENDED >>> 2021-08-11 12:02:40,006 INFO [Curator-ConnectionStateManager-0] >>> o.a.n.c.l.e.CuratorLeaderElectionManager >>> org.apache.nifi.controller.leader.election.CuratorLeaderElectionManager$ElectionListener@1d37e350 >>> Connection State changed to RECONNECTED >>> 2021-08-11 12:02:40,006 INFO [Curator-ConnectionStateManager-0] >>> o.a.n.c.l.e.CuratorLeaderElectionManager >>> org.apache.nifi.controller.leader.election.CuratorLeaderElectionManager$ElectionListener@1908642e >>> Connection State changed to RECONNECTED >>> 2021-08-11 12:02:40,014 INFO [main-EventThread] >>> o.a.c.framework.imps.EnsembleTracker New config event received: {} >>> 2021-08-11 12:02:40,127 INFO [Clustering Tasks Thread-2] >>> o.a.n.c.c.ClusterProtocolHeartbeater Heartbeat created at 2021-08-11 >>> 12:02:39,176 and sent to nifiHost3.contoso.com:54321 >>> <http://nifihost3.contoso.com:54321/> at 2021-08-11 12:02:40,127; send >>> took 951 millis >>> 2021-08-11 12:02:40,186 ERROR [Timer-Driven Process >>> Thread-27-EventThread] org.apache.zookeeper.ClientCnxn Error while calling >>> watcher >>> java.lang.NullPointerException: null >>> at >>> org.apache.zookeeper.ClientCnxn$EventThread.processEvent(ClientCnxn.java:535) >>> at >>> org.apache.zookeeper.ClientCnxn$EventThread.run(ClientCnxn.java:510) >>> >>> >>> ------------------------------------------------------------------------------------------------------------------------------------------------------------ >>> >>> This happens, as mentioned, every few minutes and looks like this when >>> condensed through grep: >>> >>> ------------------------------------(nifiHost1.contoso.com >>> <http://nifihost1.contoso.com/>) nifi-app.log | grep "ZooKeeperServer >>> Shutting down"--------------------------------------------- >>> >>> ./nifi-app.log:4237:2021-08-11 12:02:39,187 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:4378:2021-08-11 12:03:22,084 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:4447:2021-08-11 12:03:57,639 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:4563:2021-08-11 12:04:18,921 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:4629:2021-08-11 12:04:33,199 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:4650:2021-08-11 12:05:03,939 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:4801:2021-08-11 12:05:39,348 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:5327:2021-08-11 12:06:56,736 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:7250:2021-08-11 12:21:41,464 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:7703:2021-08-11 12:24:54,244 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:8148:2021-08-11 12:27:21,093 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:8190:2021-08-11 12:27:37,820 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:8350:2021-08-11 12:28:37,417 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:8797:2021-08-11 12:33:25,184 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:8813:2021-08-11 12:33:39,672 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:8971:2021-08-11 12:34:22,003 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:8984:2021-08-11 12:34:36,511 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:9349:2021-08-11 12:36:29,802 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:9376:2021-08-11 12:36:41,541 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:9491:2021-08-11 12:37:12,390 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:9504:2021-08-11 12:37:25,888 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:9676:2021-08-11 12:39:22,775 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:9842:2021-08-11 12:40:49,396 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:10251:2021-08-11 12:43:38,807 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:10397:2021-08-11 12:44:36,326 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:11405:2021-08-11 12:52:26,384 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:11629:2021-08-11 12:53:33,054 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:11827:2021-08-11 12:54:43,783 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:11990:2021-08-11 12:56:23,389 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:12085:2021-08-11 12:57:21,410 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:12823:2021-08-11 13:01:23,674 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:13087:2021-08-11 13:04:44,524 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:14610:2021-08-11 13:16:15,432 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:14635:2021-08-11 13:16:37,724 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:14751:2021-08-11 13:17:38,169 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:15136:2021-08-11 13:17:59,547 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:15203:2021-08-11 13:18:30,695 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:15516:2021-08-11 13:21:43,631 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:15743:2021-08-11 13:22:49,630 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:15950:2021-08-11 13:23:50,574 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:16035:2021-08-11 13:24:30,913 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:16396:2021-08-11 13:28:01,873 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:16470:2021-08-11 13:29:12,550 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:16541:2021-08-11 13:29:38,490 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:16568:2021-08-11 13:29:53,554 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:16678:2021-08-11 13:31:13,437 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> ./nifi-app.log:16705:2021-08-11 13:31:28,195 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> >>> >>> ------------------------------------------------------------------------------------------------------------------------------------------------------------ >>> >>> So my first question is: Is this behaviour of zookeeper normal? Well it >>> is just an INFO, but I would love to here that this is a completely normal >>> phenomenon. :D >>> >>> 2. After all these zookeeper restarts, nifi finally throws the following >>> error along with the "last" zookeeper restart: >>> >>> ------------------------------------(nifiHost1.contoso.com >>> <http://nifihost1.contoso.com/>) >>> nifi-app.log------------------------------------------------------------------------------------ >>> >>> 2021-08-11 13:31:13,083 INFO [main-EventThread] >>> o.a.c.f.state.ConnectionStateManager State change: SUSPENDED >>> 2021-08-11 13:31:13,437 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> 2021-08-11 13:31:13,437 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer shutting down >>> 2021-08-11 13:31:13,439 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.z.server.FinalRequestProcessor shutdown of request processor complete >>> 2021-08-11 13:31:13,440 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.z.server.SyncRequestProcessor Shutting down >>> 2021-08-11 13:31:13,440 INFO [SyncThread:1] >>> o.a.z.server.SyncRequestProcessor SyncRequestProcessor exited! >>> 2021-08-11 13:31:13,450 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer minSessionTimeout set to 4000 >>> 2021-08-11 13:31:13,450 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer maxSessionTimeout set to 40000 >>> 2021-08-11 13:31:13,450 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Created server with tickTime 2000 >>> minSessionTimeout 4000 maxSessionTimeout 40000 datadir >>> /opt/nifi/logs/zookeeper/version-2 snapdir >>> /opt/nifi/state/zookeeper/version-2 >>> 2021-08-11 13:31:13,462 ERROR [Load-Balance Server Thread-5] >>> o.a.n.c.q.c.s.ConnectionLoadBalanceServer Failed to communicate with Peer >>> nifiHost2.contoso.com/192.168.1.11:19500 >>> <http://nifihost2.contoso.com/192.168.1.11:19500> >>> java.io.EOFException: Expected to receive a Transaction Completion >>> Indicator from Peer nifiHost2.contoso.com >>> <http://nifihost2.contoso.com/> but encountered EOF >>> at >>> org.apache.nifi.controller.queue.clustered.server.StandardLoadBalanceProtocol.completeTransaction(StandardLoadBalanceProtocol.java:299) >>> at >>> org.apache.nifi.controller.queue.clustered.server.StandardLoadBalanceProtocol.receiveFlowFiles(StandardLoadBalanceProtocol.java:275) >>> at >>> org.apache.nifi.controller.queue.clustered.server.StandardLoadBalanceProtocol.receiveFlowFiles(StandardLoadBalanceProtocol.java:133) >>> at >>> org.apache.nifi.controller.queue.clustered.server.ConnectionLoadBalanceServer$CommunicateAction.run(ConnectionLoadBalanceServer.java:162) >>> at java.lang.Thread.run(Thread.java:748) >>> 2021-08-11 13:31:13,464 ERROR [Load-Balance Server Thread-6] >>> o.a.n.c.q.c.s.ConnectionLoadBalanceServer Failed to communicate with Peer >>> nifiHost2.contoso.com/192.168.1.11:19502 >>> <http://nifihost2.contoso.com/192.168.1.11:19502> >>> java.io.EOFException: Expected to receive a Transaction Completion >>> Indicator from Peer nifiHost2.contoso.com >>> <http://nifihost2.contoso.com/> but encountered EOF >>> at >>> org.apache.nifi.controller.queue.clustered.server.StandardLoadBalanceProtocol.completeTransaction(StandardLoadBalanceProtocol.java:299) >>> at >>> org.apache.nifi.controller.queue.clustered.server.StandardLoadBalanceProtocol.receiveFlowFiles(StandardLoadBalanceProtocol.java:275) >>> at >>> org.apache.nifi.controller.queue.clustered.server.StandardLoadBalanceProtocol.receiveFlowFiles(StandardLoadBalanceProtocol.java:133) >>> at >>> org.apache.nifi.controller.queue.clustered.server.ConnectionLoadBalanceServer$CommunicateAction.run(ConnectionLoadBalanceServer.java:162) >>> at java.lang.Thread.run(Thread.java:748) >>> 2021-08-11 13:31:13,589 INFO [Process Cluster Protocol Request-1] >>> o.a.n.c.c.node.NodeClusterCoordinator Status of >>> nifiHost1.contoso.com:8443 <http://nifihost1.contoso.com:8443/> changed >>> from NodeConnectionStatus[nodeId=nifiHost1.contoso.com:8443 >>> <http://nifihost1.contoso.com:8443/>, state=CONNECTED, updateId=16] to >>> NodeConnectionStatus[nodeId=nifiHost1.contoso.com:8443 >>> <http://nifihost1.contoso.com:8443/>, state=CONNECTING, updateId=16] >>> 2021-08-11 13:31:13,793 INFO [Process Cluster Protocol Request-7] >>> o.a.n.c.p.impl.SocketProtocolListener Finished processing request >>> 88980d85-b956-4713-9686-50d76a407871 (type=RECONNECTION_REQUEST, >>> length=2209040 bytes) from nifiHost1.contoso.com:8443 >>> <http://nifihost1.contoso.com:8443/> in 142 millis >>> 2021-08-11 13:31:13,794 INFO [Reconnect to Cluster] >>> o.a.nifi.controller.StandardFlowService Processing reconnection request >>> from cluster coordinator. >>> 2021-08-11 13:31:13,794 INFO [Reconnect to Cluster] >>> o.a.n.c.l.e.CuratorLeaderElectionManager Election Listener for Role Primary >>> Node disabled >>> 2021-08-11 13:31:13,802 INFO [main-EventThread] >>> o.a.c.f.state.ConnectionStateManager State change: RECONNECTED >>> 2021-08-11 13:31:28,195 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Shutting down >>> 2021-08-11 13:31:28,196 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer shutting down >>> 2021-08-11 13:31:28,198 INFO [pool-22-thread-1] >>> o.a.n.c.r.WriteAheadFlowFileRepository Initiating checkpoint of FlowFile >>> Repository >>> 2021-08-11 13:31:28,202 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.z.server.FinalRequestProcessor shutdown of request processor complete >>> 2021-08-11 13:31:28,203 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.z.server.SyncRequestProcessor Shutting down >>> 2021-08-11 13:31:28,203 INFO [SyncThread:1] >>> o.a.z.server.SyncRequestProcessor SyncRequestProcessor exited! >>> 2021-08-11 13:31:28,204 INFO [Timer-Driven Process Thread-21] >>> o.a.n.p.store.WriteAheadStorePartition Successfully rolled over Event >>> Writer for Provenance Event Store Partition[directory=/opt/pr] due to >>> MAX_TIME_REACHED. Event File was 6.7 MB and contained 1626 events. >>> 2021-08-11 13:31:28,208 INFO [pool-22-thread-1] >>> o.a.n.wali.SequentialAccessWriteAheadLog Checkpointed Write-Ahead Log with >>> 10 Records and 0 Swap Files in 8 milliseconds (Stop-the-world time = 1 >>> milliseconds), max Transaction ID 27772177643 >>> 2021-08-11 13:31:28,208 INFO [pool-22-thread-1] >>> o.a.n.c.r.WriteAheadFlowFileRepository Successfully checkpointed FlowFile >>> Repository with 10 records in 8 milliseconds >>> 2021-08-11 13:31:28,295 INFO [main-EventThread] >>> o.a.c.f.state.ConnectionStateManager State change: SUSPENDED >>> 2021-08-11 13:31:29,808 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer minSessionTimeout set to 4000 >>> 2021-08-11 13:31:29,809 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer maxSessionTimeout set to 40000 >>> 2021-08-11 13:31:29,809 INFO >>> [QuorumPeer[myid=1](plain=/0.0.0.0:2181)(secure=disabled)] >>> o.a.zookeeper.server.ZooKeeperServer Created server with tickTime 2000 >>> minSessionTimeout 4000 maxSessionTimeout 40000 datadir >>> /opt/nifi/logs/zookeeper/version-2 snapdir >>> /opt/nifi/state/zookeeper/version-2 >>> 2021-08-11 13:31:32,291 INFO [main-EventThread] >>> o.a.c.f.state.ConnectionStateManager State change: RECONNECTED >>> >>> >>> ------------------------------------------------------------------------------------------------------------------------------------------------------------ >>> >>> After that, the log continues with normal messages about heartbeats and >>> provenance events but no error occurs anymore. That exactly was the time, >>> the whole flow cut-off. >>> >>> I've got to add, that we've never experienced that flow cut-off >>> behaviour with version 1.12.1, but the zookeeper restarts occur there as >>> well and as often as seen above. >>> But when first updating to version 1.13.2 back in June, we experienced >>> this flow cut-off multiple times beside the not working load balancing. >>> Back then I thought this was connected to each other, but now we had a >>> fully functional load balancing and the cut-off happened nevertheless. >>> >>> I'm thankful for any hint. :) >>> >>> >>> >>> >
