This is probably related to having the wrong principal configured for spnego principal.
SPNEGO protocol states that if your hostname is abdc.com the spnego principal it will try to connect to is HTTP/abcd.com. I think the spnego principal that is configured in the falcon properties does not map to the above guidelines. Hence when the client tries to authenticate kdc it does not find the HTTP/abcd.com logged in as the falcon server logged in for the other user. -- Arpit Gupta Hortonworks Inc. http://hortonworks.com/ On Jul 10, 2014, at 9:02 AM, Seetharam Venkatesh <[email protected]> wrote: > Please send the configs and logs so I can see whats the issue. Very hard to > debug with information in the email. > > > On Thu, Jul 10, 2014 at 8:19 PM, Shwetha GS <[email protected]> wrote: > >> The error is specific to Kerberos authentication, probably something >> related to setup. >> >> Venkatesh, can you check this? >> >> Sent from my iPhone >> >>> On Jul 10, 2014, at 7:36 PM, Claudia Nunez <[email protected]> >> wrote: >>> >>> I¹m having the same problem. What do you mean it should be executed as >> end >>> user? Why we don¹t see this error when using simple authentication? >>> >>> Thanks >>> >>> -Claudia >>> >>>> On 7/10/14, 12:35 AM, "Shwetha GS" <[email protected]> wrote: >>>> >>>> cli command should be executed as end user >>>> >>>> >>>> On Thu, Jul 10, 2014 at 10:51 AM, Venkat R <[email protected] >>> >>>> wrote: >>>> >>>>> correction -- after kinit (using falcon user principal), when I run the >>>>> command, I get "server not found exception". Looks like somthign to do >>>>> with >>>>> Kerberos. >>>>> >>>>> What kerberos principal should I use when calling CLI command? -- >>>>> end-user, HTTP or falcon user? >>>>> >>>>> Thanks >>>>> Venkat >>>>> >>>>> >>>>> >>>>> org.apache.falcon.client.FalconCLIException: Could not authenticate, >>>>> GSSException: No valid credentials provided (Mechanism level: Server >> not >>>>> found in Kerberos database (7) - UNKNOWN_SERVER) >>>>> at >>>>> org.apache.falcon.client.FalconClient.getToken(FalconClient.java:166) >>>>> at >>>>> org.apache.falcon.client.FalconClient.<init>(FalconClient.java:136) >>>>> at org.apache.falcon.cli.FalconCLI.run(FalconCLI.java:169) >>>>> at org.apache.falcon.cli.FalconCLI.main(FalconCLI.java:125) >>>>> Caused by: >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.AuthenticationException: >>>>> GSSException: No valid credentials provided (Mechanism level: Server >> not >>>>> found in Kerberos database (7) - UNKNOWN_SERVER) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.do >>>>> SpnegoSequence(KerberosAuthenticator.java:306) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.au >>>>> thenticate(KerberosAuthenticator.java:196) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.AuthenticatedURL.openCon >>>>> nection(AuthenticatedURL.java:232) >>>>> at >>>>> org.apache.falcon.client.FalconClient.getToken(FalconClient.java:164) >>>>> ... 3 more >>>>> Caused by: GSSException: No valid credentials provided (Mechanism >> level: >>>>> Server not found in Kerberos database (7) - UNKNOWN_SERVER) >>>>> at >>>>> sun.security.jgss.krb5.Krb5Context.initSecContext(Krb5Context.java:663) >>>>> at >>>>> >> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:230) >>>>> at >>>>> >> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:162) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator$1. >>>>> run(KerberosAuthenticator.java:285) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator$1. >>>>> run(KerberosAuthenticator.java:261) >>>>> at java.security.AccessController.doPrivileged(Native Method) >>>>> at javax.security.auth.Subject.doAs(Subject.java:396) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.do >>>>> SpnegoSequence(KerberosAuthenticator.java:261) >>>>> ... 6 more >>>>> Caused by: KrbException: Server not found in Kerberos database (7) - >>>>> UNKNOWN_SERVER >>>>> at sun.security.krb5.KrbTgsRep.<init>(KrbTgsRep.java:64) >>>>> at sun.security.krb5.KrbTgsReq.getReply(KrbTgsReq.java:185) >>>>> at >>>>> >>>>> >> sun.security.krb5.internal.CredentialsUtil.serviceCreds(CredentialsUtil.j >>>>> ava:294) >>>>> at >>>>> >>>>> >> sun.security.krb5.internal.CredentialsUtil.acquireServiceCreds(Credential >>>>> sUtil.java:106) >>>>> at >>>>> sun.security.krb5.Credentials.acquireServiceCreds(Credentials.java:557) >>>>> at >>>>> sun.security.jgss.krb5.Krb5Context.initSecContext(Krb5Context.java:594) >>>>> ... 13 more >>>>> Caused by: KrbException: Identifier doesn't match expected value (906) >>>>> at sun.security.krb5.internal.KDCRep.init(KDCRep.java:133) >>>>> at sun.security.krb5.internal.TGSRep.init(TGSRep.java:58) >>>>> at sun.security.krb5.internal.TGSRep.<init>(TGSRep.java:53) >>>>> at sun.security.krb5.KrbTgsRep.<init>(KrbTgsRep.java:46) >>>>> ... 18 more >>>>> Error: Unable to initialize Falcon Client object >>>>> >>>>> >>>>> On Wednesday, July 9, 2014 9:55 PM, Venkat R >>>>> <[email protected]> >>>>> wrote: >>>>> >>>>> >>>>> >>>>> Hi All, >>>>> >>>>> Running >>>>> bin/falcon admin -status >>>>> throws the following GSSException. >>>>> I have enabled kerberos for service and >>>>> SPNEGO (disabled SSL and bin/falcon-start -port 15000). >>>>> I'm able to access the falcon URL via Firefox, but not via CLI. >>>>> is there something i'm missing any parameter while calling CLI? >>>>> >>>>> appreciate any help. >>>>> Thanks >>>>> >>>>> ---- startup.properties ---- >>>>> >>>>> >>>>> *.falcon.authentication.type=kerberos >>>>> ##### Service Configuration >>>>> *.falcon.service.authentication.kerberos.principal=dm/_ >>>>> [email protected] >>>>> >>>>> >>>>> >> *.falcon.service.authentication.kerberos.keytab=/export/apps/hadoop/keyta >>>>> bs/dm.keytab >>>>> *.dfs.namenode.kerberos.principal=hdfs/[email protected] >>>>> >>>>> ##### SPNEGO Configuration >>>>> *.falcon.http.authentication.type=kerberos >>>>> *.falcon.http.authentication.kerberos.principal=HTTP/_ >>>>> [email protected] >>>>> >>>>> >>>>> >> *.falcon.http.authentication.kerberos.keytab=/export/apps/hadoop/keytabs/ >>>>> dm.keytab >>>>> *.falcon.http.authentication.token.validity=36000 >>>>> *.falcon.http.authentication.signature.secret=falcon >>>>> *.falcon.http.authentication.simple.anonymous.allowed=true >>>>> *.falcon.http.authentication.kerberos.name.rules=DEFAULT >>>>> *.falcon.http.authentication.blacklisted.users= >>>>> >>>>> ######### Authentication >>>>> Properties ######### >>>>> falcon.enableTLS=false >>>>> >>>>> >>>>> ---- Exception -------------- >>>>> >>>>> >>>>> FalconURL -> http://localhost:15000/ >>>>> Property: falcon.url = http://localhost:15000/ >>>>> org.apache.falcon.client.FalconCLIException: Could not authenticate, >>>>> GSSException: No valid credentials provided (Mechanism level: Failed to >>>>> find any >>>>> Kerberos tgt) >>>>> at >>>>> org.apache.falcon.client.FalconClient.getToken(FalconClient.java:166) >>>>> at >>>>> org.apache.falcon.client.FalconClient.<init>(FalconClient.java:136) >>>>> at >>>>> org.apache.falcon.cli.FalconCLI.run(FalconCLI.java:169) >>>>> at org.apache.falcon.cli.FalconCLI.main(FalconCLI.java:125) >>>>> Caused by: >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.AuthenticationException: >>>>> GSSException: No valid credentials provided (Mechanism level: Failed to >>>>> find any Kerberos tgt) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.do >>>>> SpnegoSequence(KerberosAuthenticator.java:306) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.au >>>>> thenticate(KerberosAuthenticator.java:196) >>>>> at >>>>> >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.AuthenticatedURL.openCon >>>>> nection(AuthenticatedURL.java:232) >>>>> at >>>>> org.apache.falcon.client.FalconClient.getToken(FalconClient.java:164) >>>>> ... 3 more >>>>> Caused by: GSSException: No valid credentials provided (Mechanism >> level: >>>>> Failed to find any Kerberos tgt) >>>>> at >>>>> >>>>> >> sun.security.jgss.krb5.Krb5InitCredential.getInstance(Krb5InitCredential. >>>>> java:130) >>>>> at >>>>> >>>>> >> sun.security.jgss.krb5.Krb5MechFactory.getCredentialElement(Krb5MechFacto >>>>> ry.java:106) >>>>> at >>>>> >>>>> >> sun.security.jgss.krb5.Krb5MechFactory.getMechanismContext(Krb5MechFactor >>>>> y.java:172) >>>>> at >>>>> >>>>> >> sun.security.jgss.GSSManagerImpl.getMechanismContext(GSSManagerImpl.java: >>>>> 209) >>>>> at >>>>> >> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:195) >>>>> >>>>> at >>>>> >> sun.security.jgss.GSSContextImpl.initSecContext(GSSContextImpl.java:162) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator$1. >>>>> run(KerberosAuthenticator.java:285) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator$1. >>>>> run(KerberosAuthenticator.java:261) >>>>> at java.security.AccessController.doPrivileged(Native Method) >>>>> at javax.security.auth.Subject.doAs(Subject.java:396) >>>>> at >>>>> >>>>> >> org.apache.hadoop.security.authentication.client.KerberosAuthenticator.do >>>>> SpnegoSequence(KerberosAuthenticator.java:261) >>>>> ... 6 more >>>>> Error: Unable to initialize Falcon Client object >>>> >>>> -- >>>> _____________________________________________________________ >>>> The information contained in this communication is intended solely for >>>> the >>>> use of the individual or entity to whom it is addressed and others >>>> authorized to receive it. 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