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https://issues.apache.org/jira/browse/KYLIN-3772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16744704#comment-16744704
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ASF GitHub Bot commented on KYLIN-3772:
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shaofengshi commented on pull request #431: KYLIN-3772 CubeMetaIngester works
abnormally
URL: https://github.com/apache/kylin/pull/431
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> CubeMetaIngester works abnormally
> ---------------------------------
>
> Key: KYLIN-3772
> URL: https://issues.apache.org/jira/browse/KYLIN-3772
> Project: Kylin
> Issue Type: Bug
> Components: Tools, Build and Test
> Affects Versions: v2.3.0, v2.4.0, v2.5.0, v2.6.0
> Reporter: Temple Zhou
> Assignee: Temple Zhou
> Priority: Major
> Attachments: screenshot-1.png
>
>
> I have used the following cmd to extract the cube named xxx_cube, and the
> result looks good. However...
> {code:bash}
> org.apache.kylin.tool.CubeMetaExtractor -cube xxx_cube -destDir
> /Users/zhoutianpeng/tmp
> ========================================
> Dump base package locates at:
> /Users/zhoutianpeng/tmp/base_2019_01_17_11_35_33/base_2019_01_17_11_35_33.zip
> ========================================
> {code}
> When I was trying to ingest the dump file, I got the following exception:
> {code:java}
> Exception in thread "main" java.lang.RuntimeException: error execute
> org.apache.kylin.tool.CubeMetaIngester. Root cause: null
> at
> org.apache.kylin.common.util.AbstractApplication.execute(AbstractApplication.java:42)
> at
> org.apache.kylin.tool.CubeMetaIngester.main(CubeMetaIngester.java:217)
> Caused by: java.lang.NullPointerException
> at
> org.apache.kylin.tool.CubeMetaIngester.injest(CubeMetaIngester.java:151)
> at
> org.apache.kylin.tool.CubeMetaIngester.execute(CubeMetaIngester.java:126)
> at
> org.apache.kylin.common.util.AbstractApplication.execute(AbstractApplication.java:37)
> ... 1 more
> {code}
> I found that the model is null in
> org.apache.kylin.cube.model.CubeDesc#getModel
> !screenshot-1.png!
> Then, I found that the reason is that
> org.apache.kylin.metadata.cachesync.CachedCrudAssist#initEntityAfterReload
> throws the java.lang.IllegalStateException: No project found for model
> xxx_model, which contributes to the failure of model init, so the model is
> null.
> Maybe, the root cause is that the extracted files don't contain the
> /project/xxx.json, so "No project found for model xxx_model" and the model is
> null because of the failed init.
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