Thanks for your reply. Here is more detailed information. Query: select count(distinct userid) from TestTable Web Results info: Error while executing SQL "select count(distinct userid) from TestTable LIMIT 50000": Timeout visiting cube! Kylin_query.log: 2016-06-15 02:18:22,737 ERROR [http-bio-7070-exec-4] controller.QueryController:209 : Exception when execute sql java.sql.SQLException: Error while executing SQL "select count(distinct userid) from TestTable 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$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$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 2016-06-15 02:18:22,741 INFO [http-bio-7070-exec-4] service.QueryService:250 : ==========================[QUERY]=============================== SQL: select count(distinct userid) from TestTable 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 TestTable LIMIT 50000": Timeout visiting cube!
Kylin.log: 2016-06-15 02:18:22,737 ERROR [http-bio-7070-exec-4] controller.QueryController:209 : Exception when execute sql java.sql.SQLException: Error while executing SQL "select count(distinct userid) from TestTable 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$VirtualFilterChain.doFilter(FilterChainProxy.java:342) at org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilter(BasicAuthenticationFilter.java:150) at org.springframework.security.web.FilterChainProxy$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$1.execute(AvaticaConnection.java:566) at org.apache.calcite.jdbc.CalciteMetaImpl.prepareAndExecute(CalciteMetaImpl.java:578) at org.apache.calcite.avatica.AvaticaConnection.prepareAndExecuteInternal(AvaticaConnection.java:571) at org.apache.calcite.avatica.AvaticaStatement.executeInternal(AvaticaStatement.java:135) ... 80 more 2016-06-15 02:18:22,741 INFO [http-bio-7070-exec-4] service.QueryService:250 : ==========================[QUERY]=============================== SQL: select count(distinct userid) from TestTable User: ADMIN Success: false Duration: 0.0 Project: CortanaTest Realization Names: [CortanaUUTest_clone] Cuboid Ids: [1048062] Total scan count: 0 Result row count: 0 Accept Partial: true Is Partial Result: false Hit Exception Cache: false Storage cache used: false Message: Error while executing SQL "select count(distinct userid) from TestTable LIMIT 50000": Timeout visiting cube! -----Original Message----- From: Dong Li [mailto:lid...@apache.org] Sent: Wednesday, June 15, 2016 9:57 AM To: dev@kylin.apache.org Subject: Re: Timeout visiting cube There should be more exceptions which telling the root-cause before the TimeoutVisitingCube exception. Like Hongbin said, could you please provided more information? Thanks, Dong Li 2016-06-15 9:11 GMT+08:00 Jiaojiao Li <jia...@microsoft.com>: > Gentle ping... > > -----Original Message----- > From: Jiaojiao Li [mailto:jia...@microsoft.com] > Sent: Tuesday, June 14, 2016 4:51 PM > To: dev@kylin.apache.org > Cc: shaofeng...@apache.org > Subject: Timeout visiting cube > > > Hi Kylin experts, > > Error happens when perform query, query is like this *select > count(distinct userid) from XXX LIMIT 50000*. > > > > Caused by: java.lang.RuntimeException: Timeout visiting cube! > > More detailed stack trace shows: > > at > org.apache.kylin.storage.hbase.cube.v2.CubeHBaseEndpointRPC$ExpectedSi > zeIterator.next(CubeHBaseEndpointRPC.java:127) > > at > org.apache.kylin.storage.hbase.cube.v2.CubeHBaseEndpointRPC$ExpectedSi > zeIterator.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.has > Next(SequentialCubeTupleIterator.java:96) > > at > org.apache.kylin.query.enumerator.OLAPEnumerator.moveNext(OLAPEnumerat > or.java:74) > > > > I have increased the *kylin.query.cube.visit.timeout.times* to 10. > However it still suffers from hbase rpc timeout. > > Do you have idea on how to solve this problem? > > > > Kylin: 1.5.2 > > HBase: 1.1.2.2.3.4.7-4 > > Hadoop: 2.7.1.2.3.4.7-4 > > > > Thanks a lot! > >