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https://issues.apache.org/jira/browse/KYLIN-3223?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
 ]

Zhixiong Chen reassigned KYLIN-3223:
------------------------------------

    Assignee: nichunen  (was: Zhixiong Chen)

> Query for the list of hybrid cubes results in NPE
> -------------------------------------------------
>
>                 Key: KYLIN-3223
>                 URL: https://issues.apache.org/jira/browse/KYLIN-3223
>             Project: Kylin
>          Issue Type: Bug
>          Components: REST Service
>    Affects Versions: v2.2.0
>         Environment: HDP 2.5.6, Kylin 2.2
>            Reporter: Vsevolod Ostapenko
>            Assignee: nichunen
>            Priority: Major
>
> Calling REST API to get the list of hybrid cubes returns stack trace with NPE 
> exception.
> {quote}curl -u ADMIN:KYLIN -X GET -H 'Content-Type: application/json'  -d {} 
> [http://localhost:7070/kylin/api/hybrids]
> {"code":"999","data":null,"msg":null,"stacktrace":"java.lang.NullPointerException\n\tat
>  
> java.util.concurrent.ConcurrentSkipListMap.doGet(ConcurrentSkipListMap.java:778)\n\tat
>  
> java.util.concurrent.ConcurrentSkipListMap.get(ConcurrentSkipListMap.java:1546)\n\tat
>  
> org.apache.kylin.metadata.cachesync.SingleValueCache.get(SingleValueCache.java:85)\n\tat
>  
> org.apache.kylin.metadata.project.ProjectManager.getProject(ProjectManager.java:172)\n\tat
>  
> org.apache.kylin.rest.util.AclEvaluate.getProjectInstance(AclEvaluate.java:39)\n\tat
>  
> org.apache.kylin.rest.util.AclEvaluate.checkProjectReadPermission(AclEvaluate.java:61)\n\tat
>  
> org.apache.kylin.rest.service.HybridService.listHybrids(HybridService.java:115)\n\tat
>  
> org.apache.kylin.rest.controller.HybridController.list(HybridController.java:76)\n\tat
>  sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)\n\tat 
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)\n\tat
>  
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)\n\tat
>  java.lang.reflect.Method.invoke(Method.java:497)\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.doGet(FrameworkServlet.java:861)\n\tat
>  javax.servlet.http.HttpServlet.service(HttpServlet.java:624)\n\tat 
> org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)\n\tat
>  javax.servlet.http.HttpServlet.service(HttpServlet.java:731)\n\tat 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303)\n\tat
>  
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat
>  org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)\n\tat 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat
>  
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\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$VirtualFilterChain.doFilter(FilterChainProxy.java:331)\n\tat
>  
> org.springframework.security.web.FilterChainProxy.doFilterInternal(FilterChainProxy.java:214)\n\tat
>  
> org.springframework.security.web.FilterChainProxy.doFilter(FilterChainProxy.java:177)\n\tat
>  
> org.springframework.web.filter.DelegatingFilterProxy.invokeDelegate(DelegatingFilterProxy.java:346)\n\tat
>  
> org.springframework.web.filter.DelegatingFilterProxy.doFilter(DelegatingFilterProxy.java:262)\n\tat
>  
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat
>  
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat
>  
> com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:209)\n\tat 
> com.thetransactioncompany.cors.CORSFilter.doFilter(CORSFilter.java:244)\n\tat 
> org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)\n\tat
>  
> org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)\n\tat
>  
> org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:219)\n\tat
>  
> org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)\n\tat
>  
> org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)\n\tat
>  
> org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)\n\tat
>  
> org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)\n\tat
>  
> org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)\n\tat
>  
> org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)\n\tat
>  
> org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)\n\tat
>  
> org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1115)\n\tat
>  
> org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)\n\tat
>  
> org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:316)\n\tat
>  
> java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)\n\tat
>  
> java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)\n\tat
>  
> org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)\n\tat
>  
> java.lang.Thread.run(Thread.java:745)\n","exception":null,"url":"http://lcoalhost:7070/kylin/api/hybrids"}
> {quote}
>  
> If a parameter project without a value is specified, call succeeds. E.g.
> {quote}curl -u ADMIN:KYLIN -X GET -H 'Content-Type: application/json'  -d 
> {}[http://localhost:7070/kylin/api/hybrids?project]
> {quote}
> Quick look at the HybridService.java suggests that there is a bug in the 
> code, where the very first line tries to check ACLs on the project using the 
> project name, which is NULL, when project parameter is not specified as part 
> of the URL.
> If parameter is specified without a value, ACL check is not performed, so 
> it's another bug, as the list of projects is retrieved without read 
> permission checking.



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