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https://issues.apache.org/jira/browse/KYLIN-1077?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15238798#comment-15238798
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wangxianbin commented on KYLIN-1077:
------------------------------------
hi hongbin & shaofeng! DictionaryManager will avoid dic duplication by
checkDupByContent which compare the content of dic and SnapshotManager will do
the same thing by checkDupByContent, then it not what we should worry about, if
I am wrong, correct me! thanks
> Support Hive View as Lookup Table
> ---------------------------------
>
> Key: KYLIN-1077
> URL: https://issues.apache.org/jira/browse/KYLIN-1077
> Project: Kylin
> Issue Type: Improvement
> Affects Versions: v1.1
> Reporter: Francesco Palmiotto
> Assignee: Shaofeng SHI
> Labels: newbie
>
> If we use a view as a lookup table the cube building job fails when executing
> the 3rd step (Build Dimension Dictionary) with this log:
> java.io.IOException: java.lang.NullPointerException
> at
> org.apache.kylin.dict.lookup.HiveTable.getSignature(HiveTable.java:72)
> at
> org.apache.kylin.dict.DictionaryManager.buildDictionary(DictionaryManager.java:202)
> at
> org.apache.kylin.cube.CubeManager.buildDictionary(CubeManager.java:166)
> at
> org.apache.kylin.cube.cli.DictionaryGeneratorCLI.processSegment(DictionaryGeneratorCLI.java:52)
> at
> org.apache.kylin.cube.cli.DictionaryGeneratorCLI.processSegment(DictionaryGeneratorCLI.java:41)
> at
> org.apache.kylin.job.hadoop.dict.CreateDictionaryJob.run(CreateDictionaryJob.java:52)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:70)
> at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:84)
> at
> org.apache.kylin.job.common.HadoopShellExecutable.doWork(HadoopShellExecutable.java:62)
> at
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:107)
> at
> org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:51)
> at
> org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:107)
> at
> org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:130)
> at
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
> at
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
> at java.lang.Thread.run(Thread.java:745)
> Caused by: java.lang.NullPointerException
> result code:2
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