构建apache kylin model 执行job 的时候出现java.lang.ClassNotFoundException错误_error: java.lang.runtimeexception: java.lang.class-优快云博客

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在使用Apache Kylin构建模型并执行job时，遇到java.lang.ClassNotFoundException错误，具体为FactDistinctColumnsMapper类未找到，尽管已设置相关lib路径，问题仍未解决。

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构建apache kylin model 执行job 的时候出现java.lang.ClassNotFoundException错误

org.apache.kylin.engine.mr.exception.MapReduceException: no counters for job job_1555403615526_0008Job Diagnostics:Task failed task_1555403615526_0008_m_000000
Job failed as tasks failed. failedMaps:1 failedReduces:0 killedMaps:0 killedReduces: 0
Failure task Diagnostics:
Error: java.lang.RuntimeException: java.lang.ClassNotFoundException: Class org.apache.kylin.engine.mr.steps.FactDistinctColumnsMapper not found
	at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2596)
	at org.apache.hadoop.mapreduce.task.JobContextImpl.getMapperClass(JobContextImpl.java:187)
	at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:759)
	at org.apache.hadoop.mapred.MapTask.run(MapTask.java:347)
	at org.apache.hadoop.mapred.YarnChild$2.run(YarnChild.java:174)
	at java.security.AccessController.doPrivileged(Native Method)
	at javax.security.auth.Subject.doAs(Subject.java:422)
	at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1729)
	at org.apache.hadoop.mapred.YarnChild.main(YarnChild.java:168)
Caused by: java.lang.ClassNotFoundException: Class org.apache.kylin.engine.mr.steps.FactDistinctColumnsMapper not found
	at org.apache.hadoop.conf.Configuration.getClassByName(Configuration.java:2500)
	at org.apache.hadoop.conf.Configuration.getClass(Configuration.java:2594)
	... 8 more


	at org.apache.kylin.engine.mr.common.MapReduceExecutable.doWork(MapReduceExecutable.java:173)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:166)
	at org.apache.kylin.job.execution.DefaultChainedExecutable.doWork(DefaultChainedExecutable.java:71)
	at org.apache.kylin.job.execution.AbstractExecutable.execute(AbstractExecutable.java:166)
	at org.apache.kylin.job.impl.threadpool.DefaultScheduler$JobRunner.run(DefaultScheduler.java:114)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)

但是我已经在配置文件kylin.properties 中设置了相关lib 的路径，

kylin.engine.mr.lib-dir=/usr/local/kylin/lib
kylin.engine.mr.job-jar=/usr/local/kylin/lib/kylin-job-2.6.1.jar
kylin.storage.hbase.coprocessor-local-jar=/usr/local/kylin/lib/kylin-coprocessor-2.6.1.jar

但是还是出现了这个问题，不知道是哪里出问题了