Fay…

That looks good, but I may be overlooking a property.

Can you check to see if krb5-conf is set?

/var/lib/ambari-server/resources/scripts/configs.sh -u admin -p admin -port 
8443 -s get localhost MyCluster krb5-conf

Rob


From: Fay Wang <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>, Fay Wang 
<[email protected]<mailto:[email protected]>>
Date: Tuesday, February 23, 2016 at 1:44 PM
To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Subject: Re: another Kerberos issue

Hi Rob,
   Thanks for your prompt attention! Setting the flag -s works fine. Please see 
below. Please let me know if there is anything wrong in the output which may 
cause the page loading issue. At the same time, I will check the browser and 
javascript as you suggest....

/var/lib/ambari-server/resources/scripts/configs.sh -u admin -p admin -port 
8443 -s get localhost MyCluster kerberos-env
USERID=admin
PASSWORD=admin
PORT=:8443
SSL is enabled
########## Performing 'GET' on (Site:kerberos-env, Tag:version1)
"properties" : {
"admin_server_host" : "faywang.com",
"case_insensitive_username_rules" : "false",
"encryption_types" : "aes des3-cbc-sha1 rc4 des-cbc-md5",
"executable_search_paths" : "/usr/bin, /usr/kerberos/bin, /usr/sbin, 
/usr/lib/mit/bin, /usr/lib/mit/sbin",
"install_packages" : "true",
"kdc_host" : "faywang.com",
"kdc_type" : "mit-kdc",
"manage_identities" : "true",
"password_length" : "20",
"password_min_digits" : "1",
"password_min_lowercase_letters" : "1",
"password_min_punctuation" : "1",
"password_min_uppercase_letters" : "1",
"password_min_whitespace" : "0",
"realm" : "EXAMPLE.COM",
"service_check_principal_name" : "${cluster_name}-${short_date}"
}

-f


On Tuesday, February 23, 2016 10:31 AM, Robert Levas 
<[email protected]<mailto:[email protected]>> wrote:


Hi Fay…

For the configs.sh script, -s will enable SSL support and change that http to 
https.

That said, assuming the –s works, what do you get when you do

/var/lib/ambari-server/resources/scripts/configs.sh -u admin -p admin -port 
8443 -s get localhost MyCluster kerberos–env kdc-type

It should be either mit-kdc or active-directory.  If not, this may be your 
issue.

You can also check the Javascript console in your web browser to see if there 
are any interesting errors there, that might give a hit to what is going on.

Rob


From: Fay Wang <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>, Fay Wang 
<[email protected]<mailto:[email protected]>>
Date: Tuesday, February 23, 2016 at 1:13 PM
To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>
Subject: Re: another Kerberos issue

Hi Rob,
   I got confusing result:
(1)
curl -k -H "X-Requested-By:ambari" -u admin:admin -i -X GET 
https://localhost:8443/api/v1/clusters/MyCluster/configurations?type=kerberos-env
HTTP/1.1 200 OK
User: admin
Set-Cookie: AMBARISESSIONID=2z7yntlt934j1gimc52473i30;Path=/;Secure;HttpOnly
Expires: Thu, 01 Jan 1970 00:00:00 GMT
Content-Type: text/plain
Vary: Accept-Encoding, User-Agent
Content-Length: 433
Server: Jetty(8.1.17.v20150415)

{
  "href" : 
"https://localhost:8443/api/v1/clusters/MyCluster/configurations?type=kerberos-env";,
  "items" : [
    {
      "href" : 
"https://localhost:8443/api/v1/clusters/MyCluster/configurations?type=kerberos-env&tag=version1";,
      "tag" : "version1",
      "type" : "kerberos-env",
      "version" : 1,
      "Config" : {
        "cluster_name" : "MyCluster",
        "stack_id" : "BigInsights-4.1"
      }
    }
  ]

(2)
/var/lib/ambari-server/resources/scripts/configs.sh -u admin -p admin -port 
8443 get localhost MyCluster kerberos-env
USERID=admin
PASSWORD=admin
PORT=:8443
[ERROR] "kerberos-env" not found in server response.
[ERROR] Output of `curl -s -u admin:admin 
"http://localhost:8443/api/v1/clusters/MyCluster?fields=Clusters/desired_configs"`<http://localhost:8443/api/v1/clusters/MyCluster?fields=Clusters/desired_configs>
 is:
[ERROR]

Please note that in the curl command in (2) is still using http, instead of 
https. This may explain the error.
Please let me know how to set the flag to use https.

(3) The result from find / -name kerberos-env.xml:

/var/lib/ambari-agent/cache/stacks/.../services/KERBEROS/configuration/kerberos-env.xml
/var/lib/ambari-agent/cache/common-services/KERBEROS/1.10.3-10/configuration/kerberos-env.xml
/var/lib/ambari-server/resources/stacks/.../services/KERBEROS/configuration/kerberos-env.xml
/var/lib/ambari-server/resources/common-services/KERBEROS/1.10.3-10/configuration/kerberos-env.xml

Please advise.

-f



On Tuesday, February 23, 2016 6:56 AM, Robert Levas 
<[email protected]<mailto:[email protected]>> wrote:


Hi Fay…

This can happen if the Kerberos service config data becomes corrupted.  If you 
do the following API call, you do get any data back?

GET /api/v1/clusters/MyCluster/configurations?type=kerberos-env

In my cluster I don’t have Kerberos installed, so I get the following response:

{
  "href" : 
"http://c6501:8080/api/v1/clusters/c1/configurations?type=kerberos-env";,
  "items" : [ ]
}

If you get this, this is the issue and you will need to recreate the 
kerberos-env config manually.  If you get a set of configuration versions back, 
then we need to figure out what property of the current version is making the 
UI upset.

A better way to get the configs is to use the configs.sh script on the Ambari 
server host:

/var/lib/ambari-server/resources/scripts/configs.sh -u admin -p admin -port 
8080 get localhost c1 kerberos-env

If you get the following error, the kerberos-env config was lost somehow:

[ERROR] "kerberos-env" not found in server response.

Else if configuration data comes back, we can figure out what might be the 
offending property or properties.

Rob



From: Fay Wang <[email protected]<mailto:[email protected]>>
Reply-To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>, Fay Wang 
<[email protected]<mailto:[email protected]>>
Date: Tuesday, February 23, 2016 at 1:58 AM
To: "[email protected]<mailto:[email protected]>" 
<[email protected]<mailto:[email protected]>>, Fay Wang 
<[email protected]<mailto:[email protected]>>
Subject: Re: another Kerberos issue

Kerberization is successful. All services are up and service checks pass. 
Ambari version is 2.0.

(1) POST http://localhost:8080/api/v1/clusters/MyCluster/services/KERBEROS
(2) POST 
http://localhost:8080/api/v1/clusters/MyCluster/services/KERBEROS/components/KERBEROS_CLIENT
(3) PUT -d @/tmp/kerberos_config.json 
http://localhost:8080/api/v1/clusters/MyCluster
(4) POST -d '{"host_components" : [{"HostRoles" : 
{"component_name":"KERBEROS_CLIENT"}}]}' 
http://localhost:8080/api/v1/clusters/MyCluster/hosts?Hosts/host_name=$host
(5) PUT -d '{"ServiceInfo": {"state" : "INSTALLED"}}' 
http://localhost:8080/api/v1/clusters/MyCluster/services/KERBEROS
(6) POST -d @/tmp/kerberos_descriptor.json 
http://localhost:8080/api/v1/clusters/MyCluster/artifacts/kerberos_descriptor
(7) PUT -d @/tmp/kerberos_enable.json 
http://localhost:8080/api/v1/clusters/MyCluster

Not sure why the page (Ambari UI -> Admin -> Kerberos) is not loaded. Please 
help...

-f


On Monday, February 22, 2016 10:26 PM, Fay Wang 
<[email protected]<mailto:[email protected]>> wrote:


Hi,
    Another issue with automated kerberos via REST API is that after 
kerberization, on Ambari UI -> Admin -> Kerberos -> The page does not load. It 
must be something to do with the value not been set/ or not been retrieved 
correctly. There is nothing special in ambari-server.log. Any help is highly 
appreciated....

-fay






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