Hi Yafei, It looks like the problem is related with "prepared statement", am I correct?
There is another reporting, please check the email "【kylin2.5.0】 NullPointerException". The error log seems to be incomplete, can you provide more logs before and after it? Thank you. [email protected] <[email protected]> 于2018年10月12日周五 下午3:23写道： > Hi Friends: > > Recently, our team encountered some problems with Kylin, described > as follows (all of the following tests were done with Postman sending > Restful requests): > > 1. CDH version 6.0, Kylin version 2.5 > > 2. When the deployment is completed, there will be errors in > complex connection queries and replacement parameters. > > *The query request is as follows*: > { > "sql": "SELECT loan.create_time AS time_date, > loan.apply_orders AS apply_orders, lend.loan_orders AS loan_orders, > round( cast(applyLend.apply_and_loan_orders AS DOUBLE) / > loan.apply_orders,4 ) AS loan_pass_rate FROM ( > SELECT create_time, count(borrow_id) AS apply_orders > FROM APP_BI_ORDER_APPLY WHERE create_time=? GROUP > BY create_time ) loan LEFT JOIN ( SELECT > LOAN_TIME, count(borrow_id) AS loan_orders FROM > APP_BI_ORDER_APPLY WHERE LOAN_TIME=? GROUP BY > LOAN_TIME ) lend ON lend.LOAN_TIME = loan.create_time LEFT > JOIN ( SELECT LOAN_TIME, count(borrow_id) AS > apply_and_loan_orders FROM APP_BI_ORDER_APPLY WHERE > LOAN_TIME=? AND create_time=? GROUP BY LOAN_TIME ) > applyLend ON applyLend.LOAN_TIME = loan.create_time", > "project": "BI", > "acceptPartial": false, > "backdoorToggles": { > "ATTR_STATEMENT_MAX_ROWS": "0" > }, > "params": [{ > "className": "java.lang.String", > "value": "2018-06-01" > }, { > "className": "java.lang.String", > "value": "2018-06-01" > }, { > "className": "java.lang.String", > "value": "2018-06-01" > }, { > "className": "java.lang.String", > "value": "2018-06-01" > }] > } > > *The error message is returned below:* > { > "code": "999", > "data": null, > "msg": "Unknown error.", > "stacktrace": "org.apache.kylin.rest.exception.InternalErrorException: > Unknown error.\n\tat > org.apache.kylin.rest.service.QueryService.doQueryWithCache(QueryService.java:424)\n\tat > org.apache.kylin.rest.service.QueryService.doQueryWithCache(QueryService.java:351)\n\tat > org.apache.kylin.rest.controller.QueryController.query(QueryController.java:86)\n\tat > sun.reflect.GeneratedMethodAccessor155.invoke(Unknown Source)\n\tat > sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n\tat > java.lang.reflect.Method.invoke(Method.java:498)\n\tat > org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205)\n\tat > org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133)\n\tat > org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97)\n\tat > org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827)\n\tat > org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738)\n\tat > org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85)\n\tat > org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:967)\n\tat > org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:901)\n\tat > org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)\n\tat > org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872)\n\tat > javax.servlet.http.HttpServlet.service(HttpServlet.java:661)\n\tat > org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)\n\tat > javax.servlet.http.HttpServlet.service(HttpServlet.java:742)\n\tat > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231)\n\tat > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat > org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)\n\tat > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:317)\n\tat > org.springframework.security.web.access.intercept.FilterSecurityInterceptor.invoke(FilterSecurityInterceptor.java:127)\n\tat > org.springframework.security.web.access.intercept.FilterSecurityInterceptor.doFilter(FilterSecurityInterceptor.java:91)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.access.ExceptionTranslationFilter.doFilter(ExceptionTranslationFilter.java:114)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.session.SessionManagementFilter.doFilter(SessionManagementFilter.java:137)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.authentication.AnonymousAuthenticationFilter.doFilter(AnonymousAuthenticationFilter.java:111)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.servletapi.SecurityContextHolderAwareRequestFilter.doFilter(SecurityContextHolderAwareRequestFilter.java:170)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.savedrequest.RequestCacheAwareFilter.doFilter(RequestCacheAwareFilter.java:63)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.authentication.www.BasicAuthenticationFilter.doFilterInternal(BasicAuthenticationFilter.java:215)\n\tat > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.authentication.AbstractAuthenticationProcessingFilter.doFilter(AbstractAuthenticationProcessingFilter.java:200)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.authentication.logout.LogoutFilter.doFilter(LogoutFilter.java:116)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.header.HeaderWriterFilter.doFilterInternal(HeaderWriterFilter.java:64)\n\tat > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.context.request.async.WebAsyncManagerIntegrationFilter.doFilterInternal(WebAsyncManagerIntegrationFilter.java:56)\n\tat > org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.context.SecurityContextPersistenceFilter.doFilter(SecurityContextPersistenceFilter.java:105)\n\tat > org.springframework.security.web.FilterChainProxy$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat > org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)\n\tat > org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)\n\tat > org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)\n\tat > org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)\n\tat > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat > com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:209)\n\tat > com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:244)\n\tat > org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193)\n\tat > org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166)\n\tat > org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198)\n\tat > org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96)\n\tat > org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493)\n\tat > org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140)\n\tat > org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81)\n\tat > org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650)\n\tat > org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87)\n\tat > org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342)\n\tat > org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800)\n\tat > org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66)\n\tat > org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:806)\n\tat > org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1498)\n\tat > org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49)\n\tat > java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)\n\tat > java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)\n\tat > org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\n\tat > java.lang.Thread.run(Thread.java:748)\n", > "exception": "Unknown error.", > "url": "http://47.93.101.150:7070/kylin/api/query"; > } > > 3. Errorsdo not exist when complex connection queries do not have > replacement parameters, such as: > > { > "sql": "SELECT loan.create_time AS time_date, > loan.apply_orders AS apply_orders, lend.loan_orders AS loan_orders, > round( cast(applyLend.apply_and_loan_orders AS DOUBLE) / > loan.apply_orders,4 ) AS loan_pass_rate FROM ( > SELECT create_time, count(borrow_id) AS apply_orders > FROM APP_BI_ORDER_APPLY WHERE create_time='2018-01-01' > GROUP BY create_time ) loan LEFT JOIN ( > SELECT LOAN_TIME, count(borrow_id) AS loan_orders > FROM APP_BI_ORDER_APPLY WHERE LOAN_TIME='2018-01-01' > GROUP BY LOAN_TIME ) lend ON lend.LOAN_TIME = > loan.create_time LEFT JOIN ( SELECT LOAN_TIME, > count(borrow_id) AS apply_and_loan_orders FROM > APP_BI_ORDER_APPLY WHERE LOAN_TIME='2018-01-01' AND > create_time='2018-01-01' GROUP BY LOAN_TIME ) > applyLend ON applyLend.LOAN_TIME = loan.create_time", > "project": "BI", > "acceptPartial": false, > "backdoorToggles": { > "ATTR_STATEMENT_MAX_ROWS": "0" > }, > "params": [] > } > > 4. Simple queries and subqueries have no problem no matter whether > there are replacement parameters, such as: > > { > "sql":"select user_id, borrow_id, pass_time from app_bi_order_apply", > "project":"BI", > "acceptPartial":true, > "backdoorToggles":{ > "ATTR_STATEMENT_MAX_ROWS":"0" > }, > "params":[ > > ] > } > > > *The above is a detailed description of the problem. I would appreciate it > if you could help me to sort out the problem or provide some solutions!* > > *Best Regards!* > > > > ------------------------------ > YaFei Wang > -- Best regards, Shaofeng Shi 史少锋
