[jira] [Commented] (KYLIN-4244) ClassNotFoundException while use org.apache.kylin.engine.mr.common.CubeStatsReader in bash

["ASF GitHub Bot (Jira)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/KYLIN-4244?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16969140#comment-16969140 ] 

ASF GitHub Bot commented on KYLIN-4244:
---------------------------------------

zhoukangcn commented on pull request #924: KYLIN-4244: add com.tdunning shade in tool assembly
URL: https://github.com/apache/kylin/pull/924
 
 
   see https://issues.apache.org/jira/browse/KYLIN-4244
 
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> ClassNotFoundException while use org.apache.kylin.engine.mr.common.CubeStatsReader in bash
> ------------------------------------------------------------------------------------------
>
>                 Key: KYLIN-4244
>                 URL: https://issues.apache.org/jira/browse/KYLIN-4244
>             Project: Kylin
>          Issue Type: Bug
>            Reporter: ZhouKang
>            Priority: Major
>
> use org.apache.kylin.engine.mr.common.CubeStatsReader to print estimated size for cube
>  
> {code:java}
> // code placeholder
> bash ./kylin.sh org.apache.kylin.engine.mr.common.CubeStatsReader {cube_name}
> {code}
> get an Exception
> {code:java}
> // code placeholder
> Exception in thread "main" java.lang.NoClassDefFoundError: com/tdunning/math/stats/TDigest
> 	at org.apache.kylin.measure.percentile.PercentileSerializer.current(PercentileSerializer.java:62)
> 	at org.apache.kylin.measure.percentile.PercentileSerializer.getStorageBytesEstimate(PercentileSerializer.java:52)
> 	at org.apache.kylin.metadata.datatype.DataType.getStorageBytesEstimate(DataType.java:256)
> 	at org.apache.kylin.engine.mr.common.CubeStatsReader.estimateCuboidStorageSize(CubeStatsReader.java:251)
> 	at org.apache.kylin.engine.mr.common.CubeStatsReader.getCuboidSizeMapFromRowCount(CubeStatsReader.java:211)
> 	at org.apache.kylin.engine.mr.common.CubeStatsReader.getCuboidSizeMap(CubeStatsReader.java:170)
> 	at org.apache.kylin.engine.mr.common.CubeStatsReader.print(CubeStatsReader.java:273)
> 	at org.apache.kylin.engine.mr.common.CubeStatsReader.main(CubeStatsReader.java:435)
> Caused by: java.lang.ClassNotFoundException: com.tdunning.math.stats.TDigest
> 	at java.net.URLClassLoader.findClass(URLClassLoader.java:382)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
> 	at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349)
> 	at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
> 	... 8 more
> {code}
>  



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