Eric Yang created HADOOP-16094:
----------------------------------
Summary: AuthenticationFilter can trigger NullPointerException in
KerberosName class
Key: HADOOP-16094
URL: https://issues.apache.org/jira/browse/HADOOP-16094
Project: Hadoop Common
Issue Type: Bug
Reporter: Eric Yang
Hadoop AuthenticationFilter example can fail with NullPointerException if
auth_to_local rules has not been parsed from Configuration object. This can
happen if the web application does not have any initialization code that leads
to triggering: UserGroupInformation.initialize(conf, boolean);
Stacktrace:
{code}
2019-02-05 20:08:05,668 [http-bio-8080-exec-11] DEBUG
org.apache.hadoop.security.authentication.server.AuthenticationFilter-
Authentication exception: java.lang.NullPointerException
org.apache.hadoop.security.authentication.client.AuthenticationException:
java.lang.NullPointerException
at
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.authenticate(KerberosAuthenticationHandler.java:315)
at
org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:536)
at
org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241)
at
org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
at
org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:218)
at
org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:110)
at
org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:506)
at
org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:169)
at
org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103)
at
org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:962)
at
org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116)
at
org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:445)
at
org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1087)
at
org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:637)
at
org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:318)
at
java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at
java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at
org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61)
at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.NullPointerException
at
org.apache.hadoop.security.authentication.util.KerberosName.getShortName(KerberosName.java:422)
at
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.runWithPrincipal(KerberosAuthenticationHandler.java:352)
at
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.access$000(KerberosAuthenticationHandler.java:64)
at
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:304)
at
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:301)
at java.security.AccessController.doPrivileged(Native Method)
at javax.security.auth.Subject.doAs(Subject.java:422)
at
org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.authenticate(KerberosAuthenticationHandler.java:300)
... 18 more
{code}
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