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https://issues.apache.org/jira/browse/AMBARI-9742?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14332481#comment-14332481
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Hadoop QA commented on AMBARI-9742:
-----------------------------------
{color:green}+1 overall{color}. Here are the results of testing the latest
attachment
http://issues.apache.org/jira/secure/attachment/12700127/AMBARI-9742_01.patch
against trunk revision .
{color:green}+1 @author{color}. The patch does not contain any @author
tags.
{color:green}+1 tests included{color}. The patch appears to include 1 new
or modified test files.
{color:green}+1 javac{color}. The applied patch does not increase the
total number of javac compiler warnings.
{color:green}+1 release audit{color}. The applied patch does not increase
the total number of release audit warnings.
{color:green}+1 core tests{color}. The patch passed unit tests in
ambari-server.
Test results:
https://builds.apache.org/job/Ambari-trunk-test-patch/1766//testReport/
Console output:
https://builds.apache.org/job/Ambari-trunk-test-patch/1766//console
This message is automatically generated.
> Kerberos: fails when entering admin principal with blank password
> ------------------------------------------------------------------
>
> Key: AMBARI-9742
> URL: https://issues.apache.org/jira/browse/AMBARI-9742
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.0.0
> Reporter: Robert Levas
> Assignee: Robert Levas
> Priority: Critical
> Labels: kerberos
> Fix For: 2.0.0
>
> Attachments: AMBARI-9742_01.patch
>
> Original Estimate: 2h
> Remaining Estimate: 2h
>
> Note: I don't believe the below is specific to add host, but related to the
> prompting and how the set admin cred works in case of a blank password. I hit
> this during testing of add host though.
> - install cluster, kerberize
> - add host (be sure to use a new browser so you know it will prompt for kerb
> admin credentials)
> - got to the review part of add host, click deploy
> - prompted for admin creds (as expected)
> - tried messing around by putting in bad creds and that seemed to work...
> - expect when I put in the right admin cred principal name (admin/admin) but
> a blank password. I was surprised it allowed me to click save (because the
> password field was blank)
> - so I click save, dialog disappears and I am cannot get it to re-prompt.
> - this is what it PUT and the response was blank...
>
> {code}
> [{"session_attributes":{"kerberos_admin":{"principal":"admin/admin","password":""}}}]:
> Response Headersview source
> {code}
> in ambari-server.log, nothing
> {code}
> 17:58:05,860 INFO [qtp1257282095-603] AmbariManagementControllerImpl:1171 -
> Received a updateCluster request, clusterId=2, clusterName=MyCluster,
> securityType=null, request={ clusterName=MyCluster, clusterId=2,
> provisioningState=null, securityType=null, stackVersion=HDP-2.2,
> desired_scv=null, hosts=[] }
> {code}
> - back in wizard doesn't solve it. had to completely exit wizard and ambari
> web to start again
> The overall issue is how the credentials are being validated. If no password
> is being set, the command to test the credentials when using a MIT KDC
> generates the following command:
> {code}
> kadmin -p admin/admin -w "" -r EXAMPLE.COM -q 'get_principal admin/admin'
> {code}
> The empty password ({{-w ""}}) in the command creates an interactive session
> where the command is waiting for data on STDIN, thus hanging the process.
> An empty password should not cause the same behavior when using Active
> Directory.
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