Thank you for taking time to investigation. Today I rerun the query and all the log are as follows. Kylin_query.log: root@MartiniTest000:/home/martini/kylin/logs# cat kylin_query.log 2016-06-16 09:04:10,795 DEBUG [http-bio-7070-exec-2] service.QueryService:291 : getting table metas 2016-06-16 09:04:10,796 DEBUG [http-bio-7070-exec-2] service.QueryService:309 : getting column metas 2016-06-16 09:04:10,804 DEBUG [http-bio-7070-exec-2] service.QueryService:323 : done column metas 2016-06-16 09:04:25,880 DEBUG [http-bio-7070-exec-10] service.QueryService:291 : getting table metas 2016-06-16 09:04:25,882 DEBUG [http-bio-7070-exec-10] service.QueryService:309 : getting column metas 2016-06-16 09:04:25,889 DEBUG [http-bio-7070-exec-10] service.QueryService:323 : done column metas 2016-06-16 09:04:34,045 INFO [http-bio-7070-exec-10] controller.QueryController:174 : Using project: CortanaTest 2016-06-16 09:04:34,046 INFO [http-bio-7070-exec-10] controller.QueryController:175 : The original query: select count(distinct userid) from cortanauu 2016-06-16 09:04:34,047 INFO [http-bio-7070-exec-10] service.QueryService:266 : The corrected query: select count(distinct userid) from cortanauu LIMIT 50000 2016-06-16 09:04:34,104 INFO [http-bio-7070-exec-10] routing.QueryRouter:48 : The project manager's reference is org.apache.kylin.metadata.project.ProjectManager@419808ad 2016-06-16 09:04:34,105 INFO [http-bio-7070-exec-10] routing.QueryRouter:60 : Find candidates by table CORTANAUU.CORTANAUU and project=CORTANATEST : org.apache.kylin.query.routing.Candidate@f3ac47f 2016-06-16 09:04:34,105 INFO [http-bio-7070-exec-10] routing.QueryRouter:49 : Applying rule: class org.apache.kylin.query.routing.rules.RemoveUncapableRealizationsRule, realizations before: [CortanaUUTest_clone(CUBE)], realizations after: [CortanaUUTest_clone(CUBE)] 2016-06-16 09:04:34,105 INFO [http-bio-7070-exec-10] routing.QueryRouter:49 : Applying rule: class org.apache.kylin.query.routing.rules.RealizationSortRule, realizations before: [CortanaUUTest_clone(CUBE)], realizations after: [CortanaUUTest_clone(CUBE)] 2016-06-16 09:04:34,106 INFO [http-bio-7070-exec-10] routing.QueryRouter:85 : Adjust DimensionAsMeasure for FunctionDesc [expression=COUNT_DISTINCT, parameter=ParameterDesc [type=column, value=USERID, nextParam=null], returnType=null] 2016-06-16 09:04:34,106 INFO [http-bio-7070-exec-10] routing.QueryRouter:72 : The realizations remaining: [CortanaUUTest_clone(CUBE)] And the final chosen one is the first one 2016-06-16 09:04:34,152 DEBUG [http-bio-7070-exec-10] enumerator.OLAPEnumerator:107 : query storage... 2016-06-16 09:04:34,405 DEBUG [http-bio-7070-exec-10] enumerator.OLAPEnumerator:127 : return TupleIterator... 2016-06-16 09:06:46,286 ERROR [http-bio-7070-exec-10] controller.QueryController:209 : Exception when execute sql java.sql.SQLException: Error while executing SQL "select count(distinct userid) from cortanauu LIMIT 50000": Timeout visiting cube! at org.apache.calcite.avatica.Helper.createException(Helper.java:56) at org.apache.calcite.avatica.Helper.createException(Helper.java:41) at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:143) at org.apache.calcite.avatica.AvaticaStatement.executeQuery(AvaticaStatement.java:186) at org.apache.kylin.rest.service.QueryService.execute(QueryService.java:361) at org.apache.kylin.rest.service.QueryService.queryWithSqlMassage(QueryService.java:273) at org.apache.kylin.rest.service.QueryService.query(QueryService.java:121) at org.apache.kylin.rest.service.QueryService$$FastClassByCGLIB$$4957273f.invoke(<generated>) at net.sf.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) at org.springframework.aop.framework.Cglib2AopProxy$DynamicAdvisedInterceptor.intercept(Cglib2AopProxy.java:618) at org.apache.kylin.rest.service.QueryService$$EnhancerByCGLIB$$72e265c1.query(<generated>) at org.apache.kylin.rest.controller.QueryController.doQueryWithCache(QueryController.java:192) at org.apache.kylin.rest.controller.QueryController.query(QueryController.java:94) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:213) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:126) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:96) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:617) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:578) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:80) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:923) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:852) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:882) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:789) at javax.servlet.http.HttpServlet.service(HttpServlet.java:646) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:330) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:118) at org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:84) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:103) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:113) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:54) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:45) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:201) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.ui.DefaultLoginPageGeneratingFilter.doFilter(DefaultLoginPageGeneratingFilter.java:91) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:183) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:105) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:87) at org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:192) at org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:160) at org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346) at org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:259) 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:195) at com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:266) 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:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:504) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1074) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: java.lang.RuntimeException: Timeout visiting cube! at org.apache.kylin.storage.hbase.cube.v2.CubeHBaseEndpointRPC$ExpectedSizeIterator.next(CubeHBaseEndpointRPC.java:127) at org.apache.kylin.storage.hbase.cube.v2.CubeHBaseEndpointRPC$ExpectedSizeIterator.next(CubeHBaseEndpointRPC.java:81) at com.google.common.collect.TransformedIterator.next(TransformedIterator.java:48) at com.google.common.collect.Iterators$6.hasNext(Iterators.java:583) at org.apache.kylin.storage.hbase.cube.v2.SequentialCubeTupleIterator.hasNext(SequentialCubeTupleIterator.java:96) at org.apache.kylin.query.enumerator.OLAPEnumerator.moveNext(OLAPEnumerator.java:74) at Baz$1$1.moveNext(Unknown Source) at org.apache.calcite.linq4j.EnumerableDefaults.aggregate(EnumerableDefaults.java:112) at org.apache.calcite.linq4j.DefaultEnumerable.aggregate(DefaultEnumerable.java:107) at Baz.bind(Unknown Source) at org.apache.calcite.jdbc.CalcitePrepare$CalciteSignature.enumerable(CalcitePrepare.java:326) at org.apache.calcite.jdbc.CalciteConnectionImpl.enumerable(CalciteConnectionImpl.java:281) at org.apache.calcite.jdbc.CalciteMetaImpl._createIterable(CalciteMetaImpl.java:545) at org.apache.calcite.jdbc.CalciteMetaImpl.createIterable(CalciteMetaImpl.java:536) at org.apache.calcite.avatica.AvaticaResultSet.execute(AvaticaResultSet.java:187) at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:65) at org.apache.calcite.jdbc.CalciteResultSet.execute(CalciteResultSet.java:44) at org.apache.calcite.avatica.AvaticaConnection$1.execute(AvaticaConnection.java:566) at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:578) at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:571) at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:135) ... 80 more 2016-06-16 09:06:46,289 INFO [http-bio-7070-exec-10] service.QueryService:250 : ==========================[QUERY]=============================== SQL: select count(distinct userid) from cortanauu User: ADMIN Success: false Duration: 0.0 Project: CortanaTest Realization Names: [CortanaUUTest_clone] Cuboid Ids: [1048062] Total scan count: 0 Result row count: 0 Accept Partial: true Is Partial Result: false Hit Exception Cache: false Storage cache used: false Message: Error while executing SQL "select count(distinct userid) from cortanauu LIMIT 50000": Timeout visiting cube! ==========================[QUERY]===============================
-----Original Message----- From: hongbin ma [mailto:mahong...@apache.org] Sent: Wednesday, June 15, 2016 10:09 PM To: dev <dev@kylin.apache.org> Subject: Re: Timeout visiting cube actually, can you please attach latest 2 minutes' log before 2016-06-15 02:18:22,741? it's still incomplete for our analysis -- Regards, *Bin Mahone | 马洪宾* Apache Kylin: https://na01.safelinks.protection.outlook.com/?url=http%3a%2f%2fkylin.io&data=01%7c01%7cjiaoli%40064d.mgd.microsoft.com%7ce53a04299632406e334208d395269be8%7c72f988bf86f141af91ab2d7cd011db47%7c1&sdata=vpTxGJMsJQ7CoMHsEjHWBxaRVgQWfLVp6mcuFmlqzzI%3d Github: https://github.com/binmahone