hi Rob,
# /var/lib/ambari-server/resources/scripts/configs.sh -u admin -p admin -port
8443 -s get localhost MyCluster krb5-conf
USERID=admin
PASSWORD=admin
PORT=:8443
SSL is enabled
########## Performing 'GET' on (Site:krb5-conf, Tag:version1)
"properties" : {
"conf_dir" : "/etc",
"content" : "[libdefaults]\n renew_lifetime = 7d\nmax_renewable_life = 7d\n
forwardable= true\n default_realm = {{realm|upper()}}\n ticket_lifetime = 24h\n
dns_lookup_realm = false\n dns_lookup_kdc = false\n #default_tgs_enctypes =
{{encryption_types}}\n #default_tkt_enctypes ={{encryption_types}}\n\n{% if
domains %}\n[domain_realm]\n{% for domain in domains.split(',') %}\n {{domain}}
= {{realm|upper()}}\n{% endfor %}\n{%endif %}\n\n[logging]\n default =
FILE:/var/log/krb5kdc.log\nadmin_server = FILE:/var/log/kadmind.log\n kdc =
FILE:/var/log/krb5kdc.log\n\n[realms]\n {{realm}} = {\n admin_server =
{{admin_server_host|default(kdc_host, True)}}\n kdc = {{kdc_host}}\n }\n\n{#
Append additional realm declarations below #}\n",
"domains" : "",
"manage_krb5_conf" : "true"
}
Not sure why UI hangs in loading the kerberos page. We double checked the
browser and did not see anything special. Actually, to my knowledge, this UI
hang issue always happens if kerberos is enabled using REST API.
I don't see any loading problem if enabling kerberos via Ambari UI.
Also, regarding the missing keytab issue, it seems that the keytab files are
missing in the nodes where some of the services could not be stopped. This is
just a speculation, I could be wrong...
Please let me know if there is anything i should check for this UI hang problem.
Many thanks,-f
On Tuesday, February 23, 2016 11:58 AM, Robert Levas
<[email protected]> wrote:
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]>
Reply-To: "[email protected]" <[email protected]>, Fay Wang
<[email protected]>
Date: Tuesday, February 23, 2016 at 1:44 PM
To: "[email protected]" <[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]>
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]>
Reply-To: "[email protected]" <[email protected]>, Fay Wang
<[email protected]>
Date: Tuesday, February 23, 2016 at 1:13 PM
To: "[email protected]" <[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
GEThttps://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"`
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]>
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]>
Reply-To: "[email protected]" <[email protected]>, Fay Wang
<[email protected]>
Date: Tuesday, February 23, 2016 at 1:58 AM
To: "[email protected]" <[email protected]>, Fay Wang
<[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]> 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
