[jira] [Updated] (AMBARI-19023) After adding an Atlas server the first restart command fails since stop doesn't have any configs; if no pid dir exists during stop, perform no-op

["Alejandro Fernandez (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/AMBARI-19023?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alejandro Fernandez updated AMBARI-19023:
-----------------------------------------
    Attachment: AMBARI-19023.patch

> After adding an Atlas server the first restart command fails since stop doesn't have any configs; if no pid dir exists during stop, perform no-op
> -------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: AMBARI-19023
>                 URL: https://issues.apache.org/jira/browse/AMBARI-19023
>             Project: Ambari
>          Issue Type: Bug
>          Components: stacks
>    Affects Versions: 2.4.0
>            Reporter: Alejandro Fernandez
>            Assignee: Alejandro Fernandez
>             Fix For: 2.5.0
>
>         Attachments: AMBARI-19023.patch
>
>
> Whenever adding an Atlas Server on a host, if the user executes the first command as a "restart" (stop+start) instead of a "start" command, then the stop command will fail because Ambari will not have generated any configs yet so Atlas' atlas_stop.py will fail.
> To fix it, during a stop command,
> If the pid dir doesn't exist, this means either
> 1. The user just added Atlas service and issued a restart command (stop+start). So stop should be a no-op since there's nothing to stop because the pid dir does not exist.
> OR
> 2. The user changed the value of the pid dir config and incorrectly issued a restart command.
> In which case the stop command cannot do anything since Ambari doesn't know which process to kill.
> The start command will spawn another instance.
> The user should have issued a stop, changed the config, and then started it.
> Ambari generated this error.
> {code}
> Traceback (most recent call last):
>   File "/var/lib/ambari-agent/cache/common-services/ATLAS/0.1.0.2.3/package/scripts/metadata_server.py", line 199, in <module>
>     MetadataServer().execute()
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 280, in execute
>     method(env)
>   File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py", line 685, in restart
>     self.stop(env, upgrade_type=upgrade_type)
>   File "/var/lib/ambari-agent/cache/common-services/ATLAS/0.1.0.2.3/package/scripts/metadata_server.py", line 95, in stop
>     user=params.metadata_user,
>   File "/usr/lib/python2.6/site-packages/resource_management/core/base.py", line 155, in __init__
>     self.env.run()
>   File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 160, in run
>     self.run_action(resource, action)
>   File "/usr/lib/python2.6/site-packages/resource_management/core/environment.py", line 124, in run_action
>     provider_action()
>   File "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py", line 273, in action_run
>     tries=self.resource.tries, try_sleep=self.resource.try_sleep)
>   File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 71, in inner
>     result = function(command, **kwargs)
>   File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 93, in checked_call
>     tries=tries, try_sleep=try_sleep)
>   File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 141, in _call_wrapper
>     result = _call(command, **kwargs_copy)
>   File "/usr/lib/python2.6/site-packages/resource_management/core/shell.py", line 294, in _call
>     raise Fail(err_msg)
> resource_management.core.exceptions.Fail: Execution of 'source /etc/atlas/conf/atlas-env.sh; /usr/hdp/current/atlas-server/bin/atlas_stop.py' returned 255.
> Exception: [Errno 13] Permission denied: '/usr/hdp/2.5.0.0-1169/atlas/logs' 
> Traceback (most recent call last):
>   File "/usr/hdp/current/atlas-server/bin/atlas_stop.py", line 68, in <module>
>     returncode = main()
>   File "/usr/hdp/current/atlas-server/bin/atlas_stop.py", line 31, in main
>     mc.dirMustExist(mc.logDir(atlas_home))
>   File "/usr/hdp/2.5.0.0-1169/atlas/bin/atlas_config.py", line 147, in dirMustExist
>     os.mkdir(dirname)
> OSError: [Errno 13] Permission denied: '/usr/hdp/2.5.0.0-1169/atlas/logs'
> {code}



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