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https://issues.apache.org/jira/browse/AMBARI-8840?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14875946#comment-14875946
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Robert Levas commented on AMBARI-8840:
--------------------------------------
[~dprichici], {{ambari-server setup-security > Setup Ambari kerberos JAAS
configuration}} shouldn't have an effect on whether Ambari is able to create
keytab files with the large key encryption algorithms - like AES-256. I am not
sure why the cluster you are looking at has exhibited this behavior.
In any case, is the cluster in question up and running with Kerberos enabled?
Or is it still in an error state?
> 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: 2.1.2
>
> 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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