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From "Stephen Chu (JIRA)" <j...@apache.org>
Subject [jira] [Created] (HDFS-3813) Secure NameNode startup has bad error message (Principal not defined in configuration) if WebHDFS is enabled but its principal is not configured
Date Fri, 17 Aug 2012 01:06:37 GMT
Stephen Chu created HDFS-3813:
---------------------------------

             Summary: Secure NameNode startup has bad error message (Principal not defined
in configuration) if WebHDFS is enabled but its principal is not configured
                 Key: HDFS-3813
                 URL: https://issues.apache.org/jira/browse/HDFS-3813
             Project: Hadoop HDFS
          Issue Type: Improvement
          Components: security, webhdfs
    Affects Versions: 2.0.0-alpha
            Reporter: Stephen Chu


I configured a secure HDFS cluster, but failed to start the NameNode because I had enabled
WebHDFS without specifying its principal in hdfs-site.xml.

In the NN logs, I see:
{noformat}
2012-05-28 17:50:13,021 INFO org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler:
Login using keytab /etc/hdfs.keytab, for principal HTTP/c1225.hal.cloudera.com@HAL.CLOUDERA.COM
2012-05-28 17:50:13,030 INFO org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler:
Initialized, principal [HTTP/c1225.hal.cloudera.com@HAL.CLOUDERA.COM] from keytab [/etc/hdfs.keytab]
2012-05-28 17:50:13,031 WARN org.apache.hadoop.security.authentication.server.AuthenticationFilter:
'signature.secret' configuration not set, using a random value as secret
2012-05-28 17:50:13,032 WARN org.mortbay.log: failed SPNEGO: javax.servlet.ServletException:
javax.servlet.ServletException: Principal not defined in configuration
2012-05-28 17:50:13,033 WARN org.mortbay.log: Failed startup of context org.mortbay.jetty.webapp.WebAppContext@21453d72{/,file:/usr/lib/hadoop-hdfs/webapps/hdfs}
javax.servlet.ServletException: javax.servlet.ServletException: Principal not defined in configuration
	at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.init(KerberosAuthenticationHandler.java:185)
	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:617)
	at org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.start(NameNodeHttpServer.java:173)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:529)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.startCommonServices(NameNode.java:471)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:434)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:590)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:571)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1134)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1193)
Caused by: javax.servlet.ServletException: Principal not defined in configuration
	at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.init(KerberosAuthenticationHandler.java:146)
	... 24 more
2012-05-28 17:50:13,034 WARN org.mortbay.log: Nested in javax.servlet.ServletException: javax.servlet.ServletException:
Principal not defined in configuration:
javax.servlet.ServletException: Principal not defined in configuration
	at org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.init(KerberosAuthenticationHandler.java:146)
	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:617)
	at org.apache.hadoop.hdfs.server.namenode.NameNodeHttpServer.start(NameNodeHttpServer.java:173)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.startHttpServer(NameNode.java:529)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.startCommonServices(NameNode.java:471)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.initialize(NameNode.java:434)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:590)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.<init>(NameNode.java:571)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.createNameNode(NameNode.java:1134)
	at org.apache.hadoop.hdfs.server.namenode.NameNode.main(NameNode.java:1193)
2012-05-28 17:50:13,041 INFO org.mortbay.log: Started SelectChannelConnector@c1225.hal.cloudera.com:50070
2012-05-28 17:50:13,041 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: Web-server up
at: c1225.hal.cloudera.com:50070
2012-05-28 17:50:13,042 INFO org.apache.hadoop.ipc.Server: IPC Server Responder: starting
2012-05-28 17:50:13,042 INFO org.apache.hadoop.ipc.Server: IPC Server listener on 17020: starting
2012-05-28 17:50:13,045 INFO org.apache.hadoop.hdfs.server.namenode.NameNode: NameNode up
at: c1225.hal.cloudera.com/172.29.98.216:17020
2012-05-28 17:50:13,045 INFO org.apache.hadoop.hdfs.server.namenode.FSNamesystem: Starting
services required for standby state
2012-05-28 17:50:13,048 INFO org.apache.hadoop.hdfs.server.namenode.ha.EditLogTailer: Will
roll logs on active node at c1226.hal.cloudera.com/172.29.98.217:17020 every 120 seconds.
2012-05-28 17:50:13,058 INFO org.apache.hadoop.hdfs.server.namenode.ha.StandbyCheckpointer:
Starting standby checkpoint thread...
Checkpointing active NN at c1226.hal.cloudera.com:50070
Serving checkpoints at c1225.hal.cloudera.com/172.29.98.216:50070
{noformat}

The error message should be more specific as to which principal hasn't been configured.

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