Hi Team, I have installed and setup Kylin on my HDP 2.6 cluster as per the Kylin documentation. I am able to build the cubes using Map-Red but, not with Spark. It always fails right after I click the build and gives a popup "Oops org/apache/spark/api/java/function/Function". I looked at "kylin.log" too and it says the same in stack trace pasted below. I have a copy of hive-site.xml under KYLIN_HOME/hadoop-conf where the value of "hive.execution.engine" is set to "mr". Please help me understand what other things to check for this error.
"020-10-19 09:43:24,998 INFO [FetcherRunner 890157894-46] threadpool.DefaultFetcherRunner:115 : Job Fetcher: 0 should running, 0 actual running, 0 stopped, 0 ready, 27 already succeed, 2 error, 7 discarded, 0 others 2020-10-19 09:43:25,717 INFO [http-bio-7070-exec-1] cube.CubeManager:373 : Updating cube instance 'kylin_sales_cube' 2020-10-19 09:43:25,718 WARN [http-bio-7070-exec-1] model.Segments:463 : NEW segment start does not fit/connect with other segments: kylin_sales_cube[20120101000000_20140101000000] 2020-10-19 09:43:25,718 WARN [http-bio-7070-exec-1] model.Segments:465 : NEW segment end does not fit/connect with other segments: kylin_sales_cube[20120101000000_20140101000000] 2020-10-19 09:43:25,719 DEBUG [http-bio-7070-exec-1] cachesync.CachedCrudAssist:223 : Saving CubeInstance at /cube/kylin_sales_cube.json 2020-10-19 09:43:25,728 DEBUG [pool-6-thread-1] cachesync.Broadcaster:119 : Servers in the cluster: [localhost:7070] 2020-10-19 09:43:25,728 DEBUG [pool-6-thread-1] cachesync.Broadcaster:129 : Announcing new broadcast to all: BroadcastEvent{entity=cube, event=update, cacheKey=kylin_sales_cube} 2020-10-19 09:43:25,731 DEBUG [http-bio-7070-exec-2] cachesync.Broadcaster:267 : Broadcasting UPDATE, cube, kylin_sales_cube 2020-10-19 09:43:25,732 ERROR [http-bio-7070-exec-1] controller.CubeController:405 : org/apache/spark/api/java/function/Function java.lang.NoClassDefFoundError: org/apache/spark/api/java/function/Function at org.apache.kylin.engine.spark.SparkBatchCubingJobBuilder2.<init>(SparkBatchCubingJobBuilder2.java:55) at org.apache.kylin.engine.spark.SparkBatchCubingEngine2.createBatchCubingJob(SparkBatchCubingEngine2.java:44) at org.apache.kylin.engine.EngineFactory.createBatchCubingJob(EngineFactory.java:61) at org.apache.kylin.rest.service.JobService.submitJobInternal(JobService.java:258) at org.apache.kylin.rest.service.JobService.submitJob(JobService.java:226) at org.apache.kylin.rest.controller.CubeController.buildInternal(CubeController.java:402) at org.apache.kylin.rest.controller.CubeController.rebuild(CubeController.java:362) at sun.reflect.GeneratedMethodAccessor203.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:347) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:263) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:209) at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:244) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:492) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:165) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:104) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:1025) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:452) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1195) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:654) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:319) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:748) Caused by: java.lang.ClassNotFoundException: org.apache.spark.api.java.function.Function at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1951) at org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1794) ... 82 more" This is a confidential email. Tesco may monitor and record all emails. The views expressed in this email are those of the sender and not Tesco. Tesco Stores Limited Company Number: 519500 Registered in England Registered Office: Tesco House, Shire Park, Kestrel Way, Welwyn Garden City, AL7 1GA VAT Registration Number: GB 220 4302 31