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https://issues.apache.org/jira/browse/KYLIN-3752?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Shaofeng SHI resolved KYLIN-3752.
---------------------------------
Resolution: Fixed
Xiaodong, thank you for contributing Kylin!
> NullPointerException in the first cubing
> step：org.apache.kylin.source.hive.CreateFlatHiveTableStep.getCubeSpecificConfig(CreateFlatHiveTableStep.java:92)
> ---------------------------------------------------------------------------------------------------------------------------------------------------------
>
> Key: KYLIN-3752
> URL: https://issues.apache.org/jira/browse/KYLIN-3752
> Project: Kylin
> Issue Type: Bug
> Components: Job Engine
> Affects Versions: v2.5.0
> Reporter: xiaodongzhang
> Assignee: xiaodongzhang
> Priority: Blocker
> Fix For: v2.6.0
>
>
> 异常如下：
> org.apache.kylin.job.exception.ExecuteException:
> org.apache.kylin.job.exception.ExecuteException:
> java.lang.NullPointerException at
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:178)
> at
> org.apache.kylin.job.impl.threadpool.DistributedScheduler$JobRunner.run(DistributedScheduler.java:111)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745) Caused by:
> org.apache.kylin.job.exception.ExecuteException:
> java.lang.NullPointerException at
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:178)
> at
> org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:69)
> at
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:163)
> ... 4 more Caused by: java.lang.NullPointerException at
> org.apache.kylin.source.hive.CreateFlatHiveTableStep.getCubeSpecificConfig(CreateFlatHiveTableStep.java:92)
> at
> org.apache.kylin.source.hive.CreateFlatHiveTableStep.doWork(CreateFlatHiveTableStep.java:97)
> at
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:163)
> ... 6 more
>
> 具体原因：默认配置只有一个线程来串行处理广播事件，当集群节点达到十个左右时，一个事件的同步平均耗时一分钟左右，因此会导致Table、Model、Cube的滞后同步影响分布式构建。
> 解决办法：[https://github.com/apache/kylin/pull/427]
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