[ https://issues.apache.org/jira/browse/KYLIN-1279?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
fengYu updated KYLIN-1279: -------------------------- Description: I query a sql in kylin-2.0, and error happen, here is the log : [http-bio-17070-exec-1]:[2016-01-04 13:30:13,488][ERROR][org.apache.kylin.rest.controller.BasicController.handleError(BasicController.java:44)] - org.apache.kylin.rest.exception.InternalErrorException: loader constraint violation: loader (instance of org/apache/catalina/loader/WebappClassLoader) previously initiated loading for a different type with name "com/google/protobuf/Message" at org.apache.kylin.rest.controller.QueryController.doQueryWithCache(QueryController.java:212) at org.apache.kylin.rest.controller.QueryController.query(QueryController.java:95) 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) I delete protobuf-java-2.5.0.jar file in WEB-INF/lib and restart, it works fine. was: I query a sql in kylin-2.0, and error happen, here is the log : [http-bio-17070-exec-1]:[2016-01-04 13:30:13,488][ERROR][org.apache.kylin.rest.controller.BasicController.handleError(BasicController.java:44)] - org.apache.kylin.rest.exception.InternalErrorException: loader constraint violation: loader (instance of org/apache/catalina/loader/WebappClassLoader) previously ini tiated loading for a different type with name "com/google/protobuf/Message" at org.apache.kylin.rest.controller.QueryController.doQueryWithCache(QueryController.java:212) at org.apache.kylin.rest.controller.QueryController.query(QueryController.java:95) 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) I delete protobuf-java-2.5.0.jar file in WEB-INF/lib and restart, it works fine. > protobuf jar file conflict with other > ------------------------------------- > > Key: KYLIN-1279 > URL: https://issues.apache.org/jira/browse/KYLIN-1279 > Project: Kylin > Issue Type: Bug > Affects Versions: 2.0 > Reporter: fengYu > > I query a sql in kylin-2.0, and error happen, here is the log : > [http-bio-17070-exec-1]:[2016-01-04 > 13:30:13,488][ERROR][org.apache.kylin.rest.controller.BasicController.handleError(BasicController.java:44)] > - > org.apache.kylin.rest.exception.InternalErrorException: loader constraint > violation: loader (instance of org/apache/catalina/loader/WebappClassLoader) > previously initiated loading for a different type with name > "com/google/protobuf/Message" > at > org.apache.kylin.rest.controller.QueryController.doQueryWithCache(QueryController.java:212) > at > org.apache.kylin.rest.controller.QueryController.query(QueryController.java:95) > 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) > I delete protobuf-java-2.5.0.jar file in WEB-INF/lib and restart, it works > fine. -- This message was sent by Atlassian JIRA (v6.3.4#6332)