Hi, While it would be nice if this setting followed the convention of allowing _HOST, the auth handler is independent of the common project which implements that behavior. The good news is I believe the config key is only used by the NN so you shouldn't have to reconfigure all your nodes. Have you tested if a client fails when the config has a specific hostname?
Daryn On Apr 1, 2013, at 2:50 AM, Oh Seok Keun wrote: Hi All I upgraded my hadoop cluster version to v1.1.2 last week. And I configured hadoop security with kerberos. When I configure some configuration for authentication hadoop http, I failed to start NameNode web-server. When I configure 'hadoop.http.authentication.kerberos.principal' with proper host name (ex. HTTP/[email protected]<mailto:[email protected]>), NameNode is doing well. But I can't configure every node(hundred machine) with each host name. I guess new SPNEGO feature can't replace _HTTP with host's domain name. Is right? My configuration and log are following: # configuration <property> <name>hadoop.http.filter.initializers</name> <value>org.apache.hadoop.security.AuthenticationFilterInitializer</value> </property> <property> <name>hadoop.http.authentication.type</name> <value>kerberos</value> </property> <property> <name>hadoop.http.authentication.token.validity</name> <value>36000</value> </property> <property> <name>hadoop.http.authentication.signature.secret.file</name> <value>/hadoop/security/conf/hadoop-http-auth-signature-secret</value> </property> <property> <name>hadoop.http.authentication.cookie.domain</name> <value>hadoop.com<http://hadoop.com/></value> </property> <property> <name>hadoop.http.authentication.simple.anonymous.allowed</name> <value>false</value> </property> <property> <name>hadoop.http.authentication.kerberos.principal</name> <value>HTTP/[email protected]<mailto:[email protected]></value> </property> <property> <name>hadoop.http.authentication.kerberos.keytab</name> <value>/hadoop/security/keytab/hdfs.keytab</value> </property> # log 2013-04-01 16:37:25,720 INFO org.apache.hadoop.http.HttpServer: dfs.webhdfs.enabled = false 2013-04-01 16:37:25,721 INFO org.apache.hadoop.http.HttpServer: Adding Kerberos (SPNEGO) filter to getDelegationToken 2013-04-01 16:37:25,722 INFO org.apache.hadoop.http.HttpServer: Adding Kerberos (SPNEGO) filter to renewDelegationToken 2013-04-01 16:37:25,723 INFO org.apache.hadoop.http.HttpServer: Adding Kerberos (SPNEGO) filter to cancelDelegationToken 2013-04-01 16:37:25,723 INFO org.apache.hadoop.http.HttpServer: Adding Kerberos (SPNEGO) filter to fsck 2013-04-01 16:37:25,724 INFO org.apache.hadoop.http.HttpServer: Adding Kerberos (SPNEGO) filter to getimage 2013-04-01 16:37:25,728 INFO org.apache.hadoop.http.HttpServer: Port returned by webServer.getConnectors()[0].getLocalPort() before open() is -1. Opening the listener on 50070 2013-04-01 16:37:25,730 INFO org.apache.hadoop.http.HttpServer: listener.getLocalPort() returned 50070 webServer.getConnectors()[0].getLocalPort() returned 50070 2013-04-01 16:37:25,730 INFO org.apache.hadoop.http.HttpServer: Jetty bound to port 50070 2013-04-01 16:37:25,730 INFO org.mortbay.log: jetty-6.1.26 2013-04-01 16:37:26,091 INFO org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler: Login using keytab /hadoop/security/keytab/hdfs.keytab, for principal HTTP/[email protected]<mailto:[email protected]> 2013-04-01 16:37:26,113 WARN org.mortbay.log: failed authentication: javax.servlet.ServletException: javax.security.auth.login.LoginException: Unable to obtain password from user 2013-04-01 16:37:26,114 WARN org.mortbay.log: Failed startup of context org.mortbay.jetty.webapp.WebAppContext@3e7bfc04{/,file:/hadoop/webapps/hdfs} javax.servlet.ServletException: javax.security.auth.login.LoginException: Unable to obtain password from user at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.init(KerberosAuthenticationHandler.java:178) at org.apache.hadoop.security.authentication.server.AuthenticationFilter.init(AuthenticationFilter.java:146) at org.mortbay.jetty.servlet.FilterHolder.doStart(FilterHolder.java:97) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.servlet.ServletHandler.initialize(ServletHandler.java:713) at org.mortbay.jetty.servlet.Context.startContext(Context.java:140) at org.mortbay.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1282) at org.mortbay.jetty.handler.ContextHandler.doStart(ContextHandler.java:518) at org.mortbay.jetty.webapp.WebAppContext.doStart(WebAppContext.java:499) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerCollection.doStart(HandlerCollection.java:152) at org.mortbay.jetty.handler.ContextHandlerCollection.doStart(ContextHandlerCollection.java:156) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.mortbay.jetty.handler.HandlerWrapper.doStart(HandlerWrapper.java:130) at org.mortbay.jetty.Server.doStart(Server.java:224) at org.mortbay.component.AbstractLifeCycle.start(AbstractLifeCycle.java:50) at org.apache.hadoop.http.HttpServer.start(HttpServer.java:631) at org.apache.hadoop.hdfs.server.namenode.NameNode$1.run(NameNode.java:484) at org.apache.hadoop.hdfs.server.namenode.NameNode$1.run(NameNode.java:362) at java.security.AccessController.doPrivileged(Native Method) at javax.security.auth.Subject.doAs(Subject.java:396) at org.apache.hadoop.security.UserGroupInformation.doAs(UserGroupInformation.java:1149) at org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:362) at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:313) at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:536) at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1410) at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1419) Thanks :) Bill.
