[jira] [Commented] (AMBARI-13835) After stack_upgrade 2.2 to 2.3 hook script fails due to missing /configurations/tez-site/tez.am.view-acls value

["Andrii Tkach (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/AMBARI-13835?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15000508#comment-15000508 ] 

Andrii Tkach commented on AMBARI-13835:
---------------------------------------

10169 tests complete (13 seconds)
  104 tests pending

> After stack_upgrade 2.2 to 2.3 hook script fails due to missing /configurations/tez-site/tez.am.view-acls value
> ---------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-13835
>                 URL: https://issues.apache.org/jira/browse/AMBARI-13835
>             Project: Ambari
>          Issue Type: Bug
>          Components: ambari-web
>    Affects Versions: 2.1.2
>            Reporter: Andrii Tkach
>            Assignee: Andrii Tkach
>            Priority: Critical
>             Fix For: 2.1.3
>
>         Attachments: AMBARI-13835.patch
>
>
> After upgrading to 2.1.x hook script fails due to missing {{/configurations/tez-site/tez.am.view-acls}} value.  The following errors may be seen when executing agent-side scripts (start, stop, etc...):
> {noformat}
> File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/config_dictionary.py", line 81, in __getattr__ 
> raise Fail("Configuration parameter '" + self.name + "' was not found in configurations dictionary!") 
> resource_management.core.exceptions.Fail: Configuration parameter 'tez.am.view-acls' was not found in configurations dictionary! 
> {noformat}
> {noformat}
> Error: Error: Unable to run the custom hook script ['/usr/bin/python2.7', '/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-ANY/scripts/hook.py', 'ANY', '/var/lib/ambari-agent/data/command-8752.json', '/var/lib/ambari-agent/cache/stacks/HDP/2.0.6/hooks/before-ANY', '/var/lib/ambari-agent/data/structured-out-8752.json', 'INFO', '/var/lib/ambari-agent/tmp’] 
> {noformat}
> *Cause*
> It appears that the cause is from this line:
> {code:title=stacks/HDP/2.0.6/hooks/before-ANY/scripts/params.py:220}
> tez_am_view_acls = config['configurations']['tez-site']["tez.am.view-acls"]
> {code}
> Since {{/configurations/tez-site/tez.am.view-acls}} was not set, the python script failed.
> *Solution*
> Either protect this call using something like
> {code}
> default("/configurations/tez-site/tez.am.view-acls", "*")
> {code}
> Or ensure the value is set during the upgrade process when transitioning to Ambari 2.1.0.



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