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https://issues.apache.org/jira/browse/AMBARI-22629?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Eugene Chekanskiy updated AMBARI-22629:
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Status: Patch Available (was: Open)
> Disabling Kerberos after enabled during Blueprint install fails with missing
> data directory error
> -------------------------------------------------------------------------------------------------
>
> Key: AMBARI-22629
> URL: https://issues.apache.org/jira/browse/AMBARI-22629
> Project: Ambari
> Issue Type: Bug
> Components: ambari-server
> Affects Versions: 2.6.0
> Reporter: Robert Levas
> Assignee: Eugene Chekanskiy
> Labels: blueprints, kerberos
> Fix For: 2.6.2
>
> Attachments: AMBARI-22629.branch-2.6.patch,
> blueprint_single_node_zk.json, cluster_template_single_node_zk.json,
> screenshot-error-dialog.png
>
>
> Disabling Kerberos after enabled during Blueprint install fails with missing
> data directory error:
> {noformat}
> The data directory has not been set. Generated data can not be stored.
> {noformat}
> !screenshot-error-dialog.png!
> This is caused by an invalid security state set for the installed components
> since the appropriate state is not set while enabling Kerberos during the
> installation process:
> {noformat}
> ambari=> select * from hostcomponentstate;
> id | cluster_id | component_name | version | current_state | host_id
> | service_name | upgrade_state | security_state
> ----+------------+------------------+--------------+---------------+---------+--------------+---------------+----------------
> 1 | 2 | KERBEROS_CLIENT | UNKNOWN | INSTALLED | 1
> | KERBEROS | NONE | UNSECURED
> 2 | 2 | ZOOKEEPER_CLIENT | 2.5.0.0-1245 | INSTALLED | 1
> | ZOOKEEPER | NONE | UNSECURED
> 3 | 2 | ZOOKEEPER_SERVER | 2.5.0.0-1245 | STARTED | 1
> | ZOOKEEPER | NONE | UNSECURED
> {noformat}
> The expected state for each component is {{SECURED}}, not {{UNSECURED}}.
> Because of this, Ambari _thinks_ there is no work to be done, causing this
> issue.
> *Steps to reproduce*:
> # Setup Ambari, ensure KDC is installed on some host and Kerberos client libs
> are installed on the Ambari server host with the krb5.conf setup properly
> # Install Blueprint - [^blueprint_single_node_zk.json]
> # Create clister - [^cluster_template_single_node_zk.json]
> # When cluster is created, Kerberos should be enabled and all services up
> # Disable Kerberos - error occurs during Unkerberize Cluster task.
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