Hi Folks,

I'm seeing a set of log lines that are continuously printing in controller
and some errors in between. Do you have an explanation for this?

2018-11-20 07:53:44,127 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:53:44,662 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:53:45,215 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:53:46,709 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:53:47,177 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_85d960c4-d4c5-4308-aa67-eed87adb7eae-POST-5d7ffcdd-aa19-444d-b5e0-a7d8ecf7a450
2018-11-20 07:53:47,271 [pool-2-thread-1] ERROR
o.a.h.m.zk.ZkBaseDataAccessor  - Exception while updating path:
/AiravataDemoCluster/IDEALSTATES/Workflow_of_process_PROCESS_1e38a959-744b-4124-a79b-ff74f0980416-POST-1cdd0eec-1e0a-4f96-b9ca-e40c85365d76
org.I0Itec.zkclient.exception.ZkInterruptedException:
java.lang.InterruptedException
at
org.apache.helix.manager.zk.zookeeper.ZkClient.retryUntilConnected(ZkClient.java:943)
at
org.apache.helix.manager.zk.zookeeper.ZkClient.writeDataReturnStat(ZkClient.java:1141)
at
org.apache.helix.manager.zk.zookeeper.ZkClient.writeDataGetStat(ZkClient.java:1160)
at
org.apache.helix.manager.zk.ZkBaseDataAccessor.doUpdate(ZkBaseDataAccessor.java:262)
at
org.apache.helix.manager.zk.ZkBaseDataAccessor.update(ZkBaseDataAccessor.java:237)
at
org.apache.helix.manager.zk.ZKHelixDataAccessor.updateProperty(ZKHelixDataAccessor.java:190)
at
org.apache.helix.manager.zk.ZKHelixDataAccessor.updateProperty(ZKHelixDataAccessor.java:170)
at
org.apache.helix.controller.rebalancer.util.RebalanceScheduler.invokeRebalance(RebalanceScheduler.java:144)
at
org.apache.helix.controller.rebalancer.util.RebalanceScheduler$RebalanceInvoker.run(RebalanceScheduler.java:129)
at java.util.concurrent.Executors$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)
Caused by: java.lang.InterruptedException: null
at java.lang.Object.wait(Native Method)
at java.lang.Object.wait(Object.java:502)
at org.apache.zookeeper.ClientCnxn.submitRequest(ClientCnxn.java:1259)
at org.apache.zookeeper.ZooKeeper.setData(ZooKeeper.java:1226)
at
org.I0Itec.zkclient.ZkConnection.writeDataReturnStat(ZkConnection.java:131)
at
org.apache.helix.manager.zk.zookeeper.ZkClient$12.call(ZkClient.java:1143)
at
org.apache.helix.manager.zk.zookeeper.ZkClient.retryUntilConnected(ZkClient.java:931)
... 15 common frames omitted
2018-11-20 07:53:47,273 [pool-2-thread-1] WARN
o.a.h.c.r.u.RebalanceScheduler  - Failed to invoke rebalance on resource
Workflow_of_process_PROCESS_1e38a959-744b-4124-a79b-ff74f0980416-POST-1cdd0eec-1e0a-4f96-b9ca-e40c85365d76
2018-11-20 07:53:47,526 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:53:48,229 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:53:48,735 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:53:49,220 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:54:03,112 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:54:03,898 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_a83a532b-76db-40f1-a1f3-8b417a5c2471-POST-766b65e3-20fe-4335-8037-7ca990d2da2a
2018-11-20 07:54:03,898 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:54:04,449 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:54:05,186 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:54:05,704 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:54:06,186 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:54:06,639 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:55:20,463 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:55:21,100 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:55:21,599 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 07:55:22,099 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 08:35:43,890 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 08:35:44,385 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 08:35:44,828 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 08:35:45,362 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 08:35:45,883 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244
2018-11-20 08:35:46,321 [GenericHelixController-event_process] WARN
o.a.h.task.WorkflowRebalancer  - Workflow configuration is NULL for
Workflow_of_process_PROCESS_4660666a-6acf-477e-bf97-0671b666dd19-PRE-6a568552-f517-49a1-94c8-c1d3814c3244

Thanks
Dimuthu

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