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Cell발생시 조치사항

총관리자 2017.07.05 15:31 조회 수 : 65

halyard 1.3에서 rdf4j-server.war와 rdf4j-workbench.war를 tomcat의 webapps에 deploy한후 Repositories->new repository해서 새로운 repository를 생성한후 Explore->Namespaces메유를 조회시 java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell 오류가 발생할 수 있는데 이는 halyard가 hbase에 triple data를 저장하는데 필요한 hbase의 라이브러리를 인식히지 못해서 발생하는 문제다.

이를 해결하기 위해서 Tomcat의 bin 디렉토리에 setenv.sh파일을 만들어 아래의 내용을 넣고 권한을 755로 부여한후 tomcat를 다시 기동해주면 된다.

------------------setenv.sh내용----------

export CLASSPATH="$CATALINA_HOME/lib/servlet-api.jar:"`hadoop classpath`:`$HOME/hbase/bin/hbase classpath

------------------------------오류내용--------------------------------------

HTTP Status 500 - org.eclipse.rdf4j.repository.RepositoryException: <html><head><title>Apache Tomcat/7.0.78 - Error report</title><style></style> </head><body><h1>HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell</h1><HR size="1" noshade="noshade">type Exception reportmessage Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Celldescription The server encountered an internal error that prevented it from fulfilling this request.exception <pre>org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell

type Exception report

message org.eclipse.rdf4j.repository.RepositoryException: <html><head><title>Apache Tomcat/7.0.78 - Error report</title><style></style> </head><body><h1>HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell</h1><HR size="1" noshade="noshade">type Exception reportmessage Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Celldescription The server encountered an internal error that prevented it from fulfilling this request.exception <pre>org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell

description The server encountered an internal error that prevented it from fulfilling this request.

exception

javax.servlet.ServletException: org.eclipse.rdf4j.repository.RepositoryException: <html><head><title>Apache Tomcat/7.0.78 - Error report</title><style></style> </head><body><h1>HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell</h1><HR size="1" noshade="noshade">type Exception reportmessage Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Celldescription The server encountered an internal error that prevented it from fulfilling this request.exception <pre>org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell
org.springframework.web.servlet.DispatcherServlet.triggerAfterCompletionWithError(DispatcherServlet.java:1303)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:977)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.github.ziplet.filter.compression.CompressingFilter.doFilter(CompressingFilter.java:300)
</pre>root cause <pre>java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell
com.msd.gin.halyard.sail.HBaseSailFactory.getSail(HBaseSailFactory.java:57)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSail(SailRepositoryFactory.java:94)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSailStack(SailRepositoryFactory.java:77)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.getRepository(SailRepositoryFactory.java:63)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepositoryStack(LocalRepositoryManager.java:240)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepository(LocalRepositoryManager.java:211)
org.eclipse.rdf4j.repository.manager.RepositoryManager.getRepository(RepositoryManager.java:377)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.setRequestAttributes(RepositoryInterceptor.java:111)
org.eclipse.rdf4j.http.server.ServerInterceptor.preHandle(ServerInterceptor.java:34)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.preHandle(RepositoryInterceptor.java:89)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$FastClassBySpringCGLIB$$7a1fdc31.invoke(<generated>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$EnhancerBySpringCGLIB$$50d6562f.preHandle(<generated>)
org.springframework.web.servlet.HandlerExecutionChain.applyPreHandle(HandlerExecutionChain.java:134)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:954)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.github.ziplet.filter.compression.CompressingFilter.doFilter(CompressingFilter.java:300)
</pre>root cause <pre>java.lang.ClassNotFoundException: org.apache.hadoop.hbase.Cell
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
com.msd.gin.halyard.sail.HBaseSailFactory.getSail(HBaseSailFactory.java:57)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSail(SailRepositoryFactory.java:94)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSailStack(SailRepositoryFactory.java:77)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.getRepository(SailRepositoryFactory.java:63)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepositoryStack(LocalRepositoryManager.java:240)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepository(LocalRepositoryManager.java:211)
org.eclipse.rdf4j.repository.manager.RepositoryManager.getRepository(RepositoryManager.java:377)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.setRequestAttributes(RepositoryInterceptor.java:111)
org.eclipse.rdf4j.http.server.ServerInterceptor.preHandle(ServerInterceptor.java:34)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.preHandle(RepositoryInterceptor.java:89)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$FastClassBySpringCGLIB$$7a1fdc31.invoke(<generated>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$EnhancerBySpringCGLIB$$50d6562f.preHandle(<generated>)
org.springframework.web.servlet.HandlerExecutionChain.applyPreHandle(HandlerExecutionChain.java:134)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:954)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.github.ziplet.filter.compression.CompressingFilter.doFilter(CompressingFilter.java:300)
</pre>note The full stack trace of the root cause is available in the Apache Tomcat/7.0.78 logs.<HR size="1" noshade="noshade"><h3>Apache Tomcat/7.0.78</h3></body></html>
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.handleRequest(WorkbenchServlet.java:158)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:109)
org.eclipse.rdf4j.workbench.proxy.WorkbenchGateway.service(WorkbenchGateway.java:120)
org.eclipse.rdf4j.workbench.base.AbstractServlet.service(AbstractServlet.java:125)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.eclipse.rdf4j.workbench.proxy.CacheFilter.doFilter(CacheFilter.java:62)
org.eclipse.rdf4j.workbench.proxy.CookieCacheControlFilter.doFilter(CookieCacheControlFilter.java:53)
root cause

org.eclipse.rdf4j.repository.RepositoryException: <html><head><title>Apache Tomcat/7.0.78 - Error report</title><style></style> </head><body><h1>HTTP Status 500 - Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell</h1><HR size="1" noshade="noshade">type Exception reportmessage Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Celldescription The server encountered an internal error that prevented it from fulfilling this request.exception <pre>org.springframework.web.util.NestedServletException: Handler processing failed; nested exception is java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell
org.springframework.web.servlet.DispatcherServlet.triggerAfterCompletionWithError(DispatcherServlet.java:1303)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:977)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.github.ziplet.filter.compression.CompressingFilter.doFilter(CompressingFilter.java:300)
</pre>root cause <pre>java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell
com.msd.gin.halyard.sail.HBaseSailFactory.getSail(HBaseSailFactory.java:57)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSail(SailRepositoryFactory.java:94)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSailStack(SailRepositoryFactory.java:77)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.getRepository(SailRepositoryFactory.java:63)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepositoryStack(LocalRepositoryManager.java:240)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepository(LocalRepositoryManager.java:211)
org.eclipse.rdf4j.repository.manager.RepositoryManager.getRepository(RepositoryManager.java:377)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.setRequestAttributes(RepositoryInterceptor.java:111)
org.eclipse.rdf4j.http.server.ServerInterceptor.preHandle(ServerInterceptor.java:34)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.preHandle(RepositoryInterceptor.java:89)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$FastClassBySpringCGLIB$$7a1fdc31.invoke(<generated>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$EnhancerBySpringCGLIB$$50d6562f.preHandle(<generated>)
org.springframework.web.servlet.HandlerExecutionChain.applyPreHandle(HandlerExecutionChain.java:134)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:954)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.github.ziplet.filter.compression.CompressingFilter.doFilter(CompressingFilter.java:300)
</pre>root cause <pre>java.lang.ClassNotFoundException: org.apache.hadoop.hbase.Cell
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1892)
org.apache.catalina.loader.WebappClassLoaderBase.loadClass(WebappClassLoaderBase.java:1735)
com.msd.gin.halyard.sail.HBaseSailFactory.getSail(HBaseSailFactory.java:57)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSail(SailRepositoryFactory.java:94)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.createSailStack(SailRepositoryFactory.java:77)
org.eclipse.rdf4j.repository.sail.config.SailRepositoryFactory.getRepository(SailRepositoryFactory.java:63)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepositoryStack(LocalRepositoryManager.java:240)
org.eclipse.rdf4j.repository.manager.LocalRepositoryManager.createRepository(LocalRepositoryManager.java:211)
org.eclipse.rdf4j.repository.manager.RepositoryManager.getRepository(RepositoryManager.java:377)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.setRequestAttributes(RepositoryInterceptor.java:111)
org.eclipse.rdf4j.http.server.ServerInterceptor.preHandle(ServerInterceptor.java:34)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor.preHandle(RepositoryInterceptor.java:89)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$FastClassBySpringCGLIB$$7a1fdc31.invoke(<generated>)
org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:717)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
org.springframework.aop.support.DelegatingIntroductionInterceptor.doProceed(DelegatingIntroductionInterceptor.java:133)
org.springframework.aop.support.DelegatingIntroductionInterceptor.invoke(DelegatingIntroductionInterceptor.java:121)
org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:653)
org.eclipse.rdf4j.http.server.repository.RepositoryInterceptor$$EnhancerBySpringCGLIB$$50d6562f.preHandle(<generated>)
org.springframework.web.servlet.HandlerExecutionChain.applyPreHandle(HandlerExecutionChain.java:134)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:954)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861)
javax.servlet.http.HttpServlet.service(HttpServlet.java:624)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846)
javax.servlet.http.HttpServlet.service(HttpServlet.java:731)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
com.github.ziplet.filter.compression.CompressingFilter.doFilter(CompressingFilter.java:300)
</pre>note The full stack trace of the root cause is available in the Apache Tomcat/7.0.78 logs.<HR size="1" noshade="noshade"><h3>Apache Tomcat/7.0.78</h3></body></html>
org.eclipse.rdf4j.http.client.SparqlSession.execute(SparqlSession.java:1132)
org.eclipse.rdf4j.http.client.SparqlSession.executeOK(SparqlSession.java:1056)
org.eclipse.rdf4j.http.client.SparqlSession.sendTupleQueryViaHttp(SparqlSession.java:831)
org.eclipse.rdf4j.http.client.SparqlSession.getTupleQueryResult(SparqlSession.java:760)
org.eclipse.rdf4j.http.client.SesameSession.getNamespaces(SesameSession.java:291)
org.eclipse.rdf4j.http.client.SesameSession.getNamespaces(SesameSession.java:273)
org.eclipse.rdf4j.repository.http.HTTPRepositoryConnection.getNamespaces(HTTPRepositoryConnection.java:798)
org.eclipse.rdf4j.workbench.commands.NamespacesServlet.service(NamespacesServlet.java:57)
org.eclipse.rdf4j.workbench.base.TransformationServlet.service(TransformationServlet.java:119)
org.eclipse.rdf4j.workbench.base.TransformationServlet.service(TransformationServlet.java:99)
org.eclipse.rdf4j.workbench.base.AbstractServlet.service(AbstractServlet.java:125)
org.eclipse.rdf4j.workbench.proxy.ProxyRepositoryServlet.service(ProxyRepositoryServlet.java:109)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:213)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.handleRequest(WorkbenchServlet.java:141)
org.eclipse.rdf4j.workbench.proxy.WorkbenchServlet.service(WorkbenchServlet.java:109)
org.eclipse.rdf4j.workbench.proxy.WorkbenchGateway.service(WorkbenchGateway.java:120)
org.eclipse.rdf4j.workbench.base.AbstractServlet.service(AbstractServlet.java:125)
org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52)
org.eclipse.rdf4j.workbench.proxy.CacheFilter.doFilter(CacheFilter.java:62)
org.eclipse.rdf4j.workbench.proxy.CookieCacheControlFilter.doFilter(CookieCacheControlFilter.java:53)
note The full stack trace of the root cause is available in the Apache Tomcat/7.0.78 logs.

Apache Tomcat/7.0.78

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Bigdata, Hadoop ecosystem, Semantic IoT등의 프로젝트를 진행중에 습득한 내용을 정리하는 곳입니다.
필요한 분을 위해서 공개하고 있습니다. 문의사항은 gooper@gooper.com로 메일을 보내주세요.

halyard/rdf4j halyard 1.3의 rdf4j-server.war와 rdf4j-workbench.war를 tomcat deploy후 조회시 java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell발생시 조치사항

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A personal place to organize information learned during the development of such Hadoop, Hive, Hbase, Semantic IoT, etc.
We are open to the required minutes. Please send inquiries to gooper@gooper.com.

Bigdata, Semantic IoT, Hadoop, NoSQL

Bigdata, Hadoop ecosystem, Semantic IoT등의 프로젝트를 진행중에 습득한 내용을 정리하는 곳입니다. 필요한 분을 위해서 공개하고 있습니다. 문의사항은 gooper@gooper.com로 메일을 보내주세요.

halyard/rdf4j halyard 1.3의 rdf4j-server.war와 rdf4j-workbench.war를 tomcat deploy후 조회시 java.lang.NoClassDefFoundError: org/apache/hadoop/hbase/Cell발생시 조치사항

댓글 0

A personal place to organize information learned during the development of such Hadoop, Hive, Hbase, Semantic IoT, etc. We are open to the required minutes. Please send inquiries to gooper@gooper.com.

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Bigdata, Hadoop ecosystem, Semantic IoT등의 프로젝트를 진행중에 습득한 내용을 정리하는 곳입니다.
필요한 분을 위해서 공개하고 있습니다. 문의사항은 gooper@gooper.com로 메일을 보내주세요.

A personal place to organize information learned during the development of such Hadoop, Hive, Hbase, Semantic IoT, etc.
We are open to the required minutes. Please send inquiries to gooper@gooper.com.