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https://issues.apache.org/jira/browse/AMBARI-8840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15690227#comment-15690227
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Robert Levas commented on AMBARI-8840:
--------------------------------------
[~forestsissi],
In Ambari 1.7, the keytab files were created manually. So it is possible they
were never created with an AES256 keytab entry. After Ambari 2.0, Ambari will
create the keytab files (if configured to do so) and will include the AES256
keytabs entry if:
* the correct unlimited key JCE policy is installed
* the configured encryption types do not exclude it - by default it is not
excluded
> Keytabs need to be created to include the encryption type of AES256 CTS mode
> with HMAC SHA1-96
> ----------------------------------------------------------------------------------------------
>
> Key: AMBARI-8840
> URL: https://issues.apache.org/jira/browse/AMBARI-8840
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.0.0, 2.1.0
> Environment: Red Hat Enterprise Linux Server release 6.6 (Santiago)
> [root@hdtest253 etc]# java -version
> java version "1.7.0_79"
> OpenJDK Runtime Environment (rhel-2.5.5.3.el6_6-x86_64 u79-b14)
> OpenJDK 64-Bit Server VM (build 24.79-b02, mixed mode)
> Reporter: Robert Levas
> Assignee: Robert Levas
> Priority: Critical
> Labels: kerberos, keytabs
> Fix For: 2.1.0
>
> Attachments: hadoop-hdfs-journalnode-hdtest253.svl.ibm.com.log
>
>
> During automated keytab generation, an entry with the following encryption
> type must be added else certain services will fail to start up or properly
> when Kerberos is enabled:
> {code}AES256 CTS mode with HMAC SHA1-96{code}
> For example, NAMENODE will fail with the following errors:
> {code}
> 2014-12-19 21:45:56,101 WARN server.AuthenticationFilter
> (AuthenticationFilter.java:doFilter(551)) - Authentication exception:
> GSSException: Failure unspecified at GSS-API level (Mechanism level: Invalid
> argument (400) - Cannot find key of appropriate type to decrypt AP REP -
> AES256 CTS mode with HMAC SHA1-96)
> org.apache.hadoop.security.authentication.client.AuthenticationException:
> GSSException: Failure unspecified at GSS-API level (Mechanism level: Invalid
> argument (400) - Cannot find key of appropriate type to decrypt AP REP -
> AES256 CTS mode with HMAC SHA1-96)
> at
> org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.authenticate(KerberosAuthenticationHandler.java:399)
> at
> org.apache.hadoop.security.authentication.server.AuthenticationFilter.doFilter(AuthenticationFilter.java:507)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> at
> org.apache.hadoop.http.HttpServer2$QuotingInputFilter.doFilter(HttpServer2.java:1224)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> at org.apache.hadoop.http.NoCacheFilter.doFilter(NoCacheFilter.java:45)
> at
> org.mortbay.jetty.servlet.ServletHandler$CachedChain.doFilter(ServletHandler.java:1212)
> at
> org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:399)
> at
> org.mortbay.jetty.security.SecurityHandler.handle(SecurityHandler.java:216)
> at
> org.mortbay.jetty.servlet.SessionHandler.handle(SessionHandler.java:182)
> at
> org.mortbay.jetty.handler.ContextHandler.handle(ContextHandler.java:766)
> at org.mortbay.jetty.webapp.WebAppContext.handle(WebAppContext.java:450)
> at
> org.mortbay.jetty.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:230)
> at
> org.mortbay.jetty.handler.HandlerWrapper.handle(HandlerWrapper.java:152)
> at org.mortbay.jetty.Server.handle(Server.java:326)
> at
> org.mortbay.jetty.HttpConnection.handleRequest(HttpConnection.java:542)
> at
> org.mortbay.jetty.HttpConnection$RequestHandler.headerComplete(HttpConnection.java:928)
> at org.mortbay.jetty.HttpParser.parseNext(HttpParser.java:549)
> at org.mortbay.jetty.HttpParser.parseAvailable(HttpParser.java:212)
> at org.mortbay.jetty.HttpConnection.handle(HttpConnection.java:404)
> at
> org.mortbay.io.nio.SelectChannelEndPoint.run(SelectChannelEndPoint.java:410)
> at
> org.mortbay.thread.QueuedThreadPool$PoolThread.run(QueuedThreadPool.java:582)
> Caused by: GSSException: Failure unspecified at GSS-API level (Mechanism
> level: Invalid argument (400) - Cannot find key of appropriate type to
> decrypt AP REP - AES256 CTS mode with HMAC SHA1-96)
> at
> sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:788)
> at
> sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:342)
> at
> sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:285)
> at
> sun.security.jgss.spnego.SpNegoContext.GSS_acceptSecContext(SpNegoContext.java:875)
> at
> sun.security.jgss.spnego.SpNegoContext.acceptSecContext(SpNegoContext.java:548)
> at
> sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:342)
> at
> sun.security.jgss.GSSContextImpl.acceptSecContext(GSSContextImpl.java:285)
> at
> org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:366)
> at
> org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler$2.run(KerberosAuthenticationHandler.java:348)
> at java.security.AccessController.doPrivileged(Native Method)
> at javax.security.auth.Subject.doAs(Subject.java:415)
> at
> org.apache.hadoop.security.authentication.server.KerberosAuthenticationHandler.authenticate(KerberosAuthenticationHandler.java:348)
> ... 23 more
> Caused by: KrbException: Invalid argument (400) - Cannot find key of
> appropriate type to decrypt AP REP - AES256 CTS mode with HMAC SHA1-96
> at sun.security.krb5.KrbApReq.authenticate(KrbApReq.java:273)
> at sun.security.krb5.KrbApReq.<init>(KrbApReq.java:144)
> at
> sun.security.jgss.krb5.InitSecContextToken.<init>(InitSecContextToken.java:108)
> at
> sun.security.jgss.krb5.Krb5Context.acceptSecContext(Krb5Context.java:771)
> ... 34 more
> {code}
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