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https://issues.apache.org/jira/browse/KYLIN-5009?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17365229#comment-17365229
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Kun Liu commented on KYLIN-5009:
--------------------------------
I will fix this issue
> stream segment can't be submit After the coordinator leader is changed
> ----------------------------------------------------------------------
>
> Key: KYLIN-5009
> URL: https://issues.apache.org/jira/browse/KYLIN-5009
> Project: Kylin
> Issue Type: Bug
> Reporter: Kun Liu
> Assignee: Kun Liu
> Priority: Minor
> Attachments: screenshot-1.png, screenshot-2.png
>
>
> Env:
> 2 coordinator node: node-0,node-1
> When the leader was changed to the node-0, the stream segment building job
> can't be submitted.
>
> The remote persisted segment can't be deleted. !_thumb_2451528.png|thumbnail!
> Find the error log in the coordinator leader node:
> ```
> 2021-06-10 00:01:41,601 INFO [streaming_job_submitter-thread-1]
> coordinate.BuildJobSubmitter:203 : The cube: xxxxxxxxx
> segment:20210603080000_20210603090000 is ready to be promoted.
> 2021-06-10 00:01:41,601 ERROR [streaming_job_submitter-thread-1]
> coordinate.BuildJobSubmitter:136 : Unexpected error
> java.lang.NullPointerException
> at
> org.apache.kylin.stream.coordinator.coordinate.ReceiverClusterManager.checkPreviousSegmentReady(ReceiverClusterManager.java:626)
> at
> org.apache.kylin.stream.coordinator.coordinate.ReceiverClusterManager.segmentBuildComplete(ReceiverClusterManager.java:520)
> at
> org.apache.kylin.stream.coordinator.coordinate.BuildJobSubmitter.traceEarliestSegmentBuildJob(BuildJobSubmitter.java:205)
> at
> org.apache.kylin.stream.coordinator.coordinate.BuildJobSubmitter.doRun(BuildJobSubmitter.java:145)
> at
> org.apache.kylin.stream.coordinator.coordinate.BuildJobSubmitter.run(BuildJobSubmitter.java:133)
> 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)
> ```
> In the frontend, there is no the segment
> !_thumb_2451527.png|thumbnail!
>
>
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