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

• Type: Bug
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: v3.0.0, v2.6.5
• Assignee: ZhouKang
• Reporter: ZhouKang
• Created: 07/Nov/19 10:19
• Updated: 06/Feb/20 07:33
• Resolved: 06/Feb/20 06:55

Description

use org.apache.kylin.engine.mr.common.CubeStatsReader to print estimated size for cube

 

// code placeholder
bash ./kylin.sh org.apache.kylin.engine.mr.common.CubeStatsReader {cube_name}

get an Exception

// 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

 

Issue Links

• links to: GitHub Pull Request #924