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https://issues.apache.org/jira/browse/RANGER-2853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Pradeep Agrawal updated RANGER-2853:
------------------------------------
Fix Version/s: 2.1.0
> "Unauthenticated : Please check the permission in the policy for the user":
> An NPE in ranger admin when enable kms.
> -------------------------------------------------------------------------------------------------------------------
>
> Key: RANGER-2853
> URL: https://issues.apache.org/jira/browse/RANGER-2853
> Project: Ranger
> Issue Type: Bug
> Components: admin
> Affects Versions: 1.2.0
> Reporter: gaozhan ding
> Priority: Major
> Fix For: 2.1.0
>
> Attachments:
> 0001-RANGER-2853-fix-NPE-error-in-ranger-admin-when-enabl.patch, image.png
>
>
> We use ranger with kerberos. When enable ranger-kms for hdfs encryption, we
> got an error from ranger admin web ui. On the premise that all configurations
> have been completed, I can not list keys in ranger admin, errors are as
> follows: Unauthenticated : Please check the permission in the policy for the
> user.
> {panel:title=logs in ranger admin:}
> XXXX-XX-XX 13:09:39,164 [http-bio-6182-exec-10] INFO
> org.apache.ranger.common.RESTErrorUtil (RESTErrorUtil.java:63) - Request
> failed. loginId=keyadmin, logMessage=Unauthenticated : Please check the
> permission in the policy for the user
> javax.ws.rs.WebApplicationException
> at
> org.apache.ranger.common.RESTErrorUtil.createRESTException(RESTErrorUtil.java:56)
> at
> org.apache.ranger.common.RESTErrorUtil.createRESTException(RESTErrorUtil.java:325)
> at org.apache.ranger.rest.XKeyREST.handleError(XKeyREST.java:215)
> at org.apache.ranger.rest.XKeyREST.searchKeys(XKeyREST.java:87)
> at
> org.apache.ranger.rest.XKeyREST$$FastClassBySpringCGLIB$$c5260d52.invoke(<generated>)
> ......
> {panel}
> I studied the problem and found that this problem have nothing to do with
> authentication, it is an exception caused by NPE. I try print that exception:
> {panel:title=NPE}
> XXXX-XX-XX 07:16:42,615 [http-bio-6182-exec-2] ERROR
> org.apache.ranger.biz.KmsKeyMgr (KmsKeyMgr.java:176) - test_for_ranger:
> java.lang.NullPointerException
> at
> org.apache.hadoop.security.authentication.util.KerberosName.getShortName(KerberosName.java:395)
> at org.apache.hadoop.security.User.<init>(User.java:48)
> at
> org.apache.hadoop.security.SecureClientLogin.loginUserFromKeytab(SecureClientLogin.java:66)
> at org.apache.ranger.biz.KmsKeyMgr.getSubjectForKerberos(KmsKeyMgr.java:574)
> at org.apache.ranger.biz.KmsKeyMgr.searchKeys(KmsKeyMgr.java:152)
> at org.apache.ranger.rest.XKeyREST.searchKeys(XKeyREST.java:85)
> at
> org.apache.ranger.rest.XKeyREST$$FastClassBySpringCGLIB$$c5260d52.invoke(<generated>)
> at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204)
> at
> org.springframework.aop.framework.CglibAopProxy$CglibMethodInvocation.invokeJoinpoint(CglibAopProxy.java:736)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:157)
> at
> org.springframework.security.access.intercept.aopalliance.MethodSecurityInterceptor.invoke(MethodSecurityInterceptor.java:69)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
> at
> org.springframework.transaction.interceptor.TransactionInterceptor$1.proceedWithInvocation(TransactionInterceptor.java:99)
> at
> org.springframework.transaction.interceptor.TransactionAspectSupport.invokeWithinTransaction(TransactionAspectSupport.java:282)
> at
> org.springframework.transaction.interceptor.TransactionInterceptor.invoke(TransactionInterceptor.java:96)
> at
> org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:179)
> at
> org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:671)
> at
> org.apache.ranger.rest.XKeyREST$$EnhancerBySpringCGLIB$$5010f39f.searchKeys(<generated>)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at
> sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
> at
> sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> at java.lang.reflect.Method.invoke(Method.java:498)
> at
> com.sun.jersey.spi.container.JavaMethodInvokerFactory$1.invoke(JavaMethodInvokerFactory.java:60)
> at
> com.sun.jersey.server.impl.model.method.dispatch.AbstractResourceMethodDispatchProvider$TypeOutInvoker._dispatch(AbstractResourceMethodDispatchProvider.java:185)
> at
> com.sun.jersey.server.impl.model.method.dispatch.ResourceJavaMethodDispatcher.dispatch(ResourceJavaMethodDispatcher.java:75)
> at
> com.sun.jersey.server.impl.uri.rules.HttpMethodRule.accept(HttpMethodRule.java:302)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.ResourceClassRule.accept(ResourceClassRule.java:108)
> at
> com.sun.jersey.server.impl.uri.rules.RightHandPathRule.accept(RightHandPathRule.java:147)
> at
> com.sun.jersey.server.impl.uri.rules.RootResourceClassesRule.accept(RootResourceClassesRule.java:84)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1542)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl._handleRequest(WebApplicationImpl.java:1473)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1419)
> at
> com.sun.jersey.server.impl.application.WebApplicationImpl.handleRequest(WebApplicationImpl.java:1409)
> ......
> {panel}
>
> Here is the reason for the NPE exception:
> {code:java}
> private Subject getSubjectForKerberos(String provider) throws Exception{
> String userName = getKMSUserName(provider);
> String password = getKMSPassword(provider);
> String nameRules = PropertiesUtil.getProperty(NAME_RULES);
> //here KerberosName.rules was set to DEFAULT or nameRules
> if (StringUtils.isEmpty(nameRules)) {
> KerberosName.setRules("DEFAULT");
> }else{
> KerberosName.setRules(nameRules);
> }
> Subject sub = new Subject();
> String rangerPrincipal =
> SecureClientLogin.getPrincipal(PropertiesUtil.getProperty(ADMIN_USER_PRINCIPAL),
> PropertiesUtil.getProperty(HOST_NAME));
> if (checkKerberos()) {
> if(SecureClientLogin.isKerberosCredentialExists(rangerPrincipal,
> PropertiesUtil.getProperty(ADMIN_USER_KEYTAB))){
> //in function loginUserFromKeytab(),KerberosName.rules will be set
> once again, which depend on the value of nameRules. This means that if
> nameRules is null, KerberosName.rules will set to null, which lead to NPE
> error.
> sub = SecureClientLogin.loginUserFromKeytab(rangerPrincipal,
> PropertiesUtil.getProperty(ADMIN_USER_KEYTAB), nameRules);
> }else{
> sub = SecureClientLogin.loginUserWithPassword(userName, password);
> }
> } else {
> sub = SecureClientLogin.login(userName);
> }
> return sub;
> }
> {code}
> The following patch solves this problem.
>
>
> !image.png!
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