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Posted to dev@slider.apache.org by "ouchengeng (JIRA)" <ji...@apache.org> on 2017/07/05 08:52:00 UTC
[jira] [Commented] (SLIDER-1232) Provider misses docker entry in
stop_command when apps are docker containers
[ https://issues.apache.org/jira/browse/SLIDER-1232?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16074440#comment-16074440 ]
ouchengeng commented on SLIDER-1232:
------------------------------------
patch provided.
> Provider misses docker entry in stop_command when apps are docker containers
> ----------------------------------------------------------------------------
>
> Key: SLIDER-1232
> URL: https://issues.apache.org/jira/browse/SLIDER-1232
> Project: Slider
> Issue Type: Bug
> Components: agent-provider
> Affects Versions: Slider 0.91, Slider 0.92
> Reporter: ouchengeng
> Assignee: ouchengeng
> Priority: Critical
> Fix For: Slider 0.92
>
> Attachments: SLIDER-1232.patch
>
>
> When apps are docker containers, agentProviderService can tell slider-agent this is a docker mode, so DockerManager.py can install/start docker containers.
> However, as for stop_command, provider fails to tell this is in docker mode, that is to say missing docker entry in command.
> This will cause following exceptions.
> ```
> ERROR 2017-07-05 05:14:25,830 CustomServiceOrchestrator.py:169 - Caught an exception while executing command: <type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'startswith'
> Traceback (most recent call last):
> File "/h8/hadoop/yarn/local/usercache/df/appcache/application_1499081562804_0093/filecache/10/slider-agent.tar.gz/slider-agent/agent/CustomServiceOrchestrator.py", line 115, in runCommand
> script_path = self.resolve_script_path(self.base_dir, script, script_type)
> File "/h8/hadoop/yarn/local/usercache/df/appcache/application_1499081562804_0093/filecache/10/slider-agent.tar.gz/slider-agent/agent/CustomServiceOrchestrator.py", line 196, in resolve_script_path
> path = os.path.realpath(posixpath.join(base_dir, script))
> File "/usr/lib64/python2.7/posixpath.py", line 75, in join
> if b.startswith('/'):
> AttributeError: 'NoneType' object has no attribute 'startswith'
> INFO 2017-07-05 05:14:25,831 ActionQueue.py:188 - Stop command received
> INFO 2017-07-05 05:14:25,932 AgentToggleLogger.py:40 - Queue result: {'componentStatus': [],
> 'reports': [{'actionId': u'16-1',
> 'clusterName': u'cgou',
> 'exitcode': 1,
> 'reportResult': True,
> 'role': u'MATCHER',
> 'roleCommand': u'STOP',
> 'serviceName': u'cgou',
> 'status': 'FAILED',
> 'stderr': "Caught an exception while executing command: <type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'startswith'",
> 'stdout': "Caught an exception while executing command: <type 'exceptions.AttributeError'>: 'NoneType' object has no attribute 'startswith'",
> 'structuredOut': '{}',
> 'taskId': 16}]}
> ```
> In AgentProviderService.java, I find that there are addInstallCommand/addInstallDockerCommand, addStartCommand/addStartDockerCommand methods. However, stop method for docker is missing. That's why slider-agent/ActionQueue.py cannot recognize this command properly and causes above exception.
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