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Ship it!




Ship It!

- Mahadev Konar


On May 23, 2016, 9:28 p.m., Robert Levas wrote:
> 
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> This is an automatically generated e-mail. To reply, visit:
> https://reviews.apache.org/r/47729/
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> 
> (Updated May 23, 2016, 9:28 p.m.)
> 
> 
> Review request for Ambari, Andrew Onischuk, Jonathan Hurley, Nate Cole, and 
> Sandor Magyari.
> 
> 
> Bugs: AMBARI-16801
>     https://issues.apache.org/jira/browse/AMBARI-16801
> 
> 
> Repository: ambari
> 
> 
> Description
> -------
> 
> # Error
> ```
> "stderr" : "Traceback (most recent call last):\n  File 
> \"/var/lib/ambari-agent/cache/common-services/YARN/2.1.0.2.0/package/scripts/mapred_service_check.py\",
>  line 162, in <module>\n    MapReduce2ServiceCheck().execute()\n  File 
> \"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py\",
>  line 254, in execute\n    method(env)\n  File 
> \"/var/lib/ambari-agent/cache/common-services/YARN/2.1.0.2.0/package/scripts/mapred_service_check.py\",
>  line 140, in service_check\n    params.smokeuser_principal, params.hostname, 
> params.tmp_dir)\n  File 
> \"/usr/lib/python2.6/site-packages/resource_management/libraries/functions/security_commons.py\",
>  line 204, in cached_kinit_executor\n    new_cached_exec(key, file_path, 
> kinit_path, temp_dir, exec_user, keytab_file, principal, hostname)\n  File 
> \"/usr/lib/python2.6/site-packages/resource_management/libraries/functions/security_commons.py\",
>  line 225, in new_cached_exec\n    Execute(command, user=exec_user)\n  File 
> \"/usr/lib/py
 thon2.6/site-packages/resource_management/core/base.py\", line 155, in 
__init__\n    self.env.run()\n  File 
\"/usr/lib/python2.6/site-packages/resource_management/core/environment.py\", 
line 160, in run\n    self.run_action(resource, action)\n  File 
\"/usr/lib/python2.6/site-packages/resource_management/core/environment.py\", 
line 124, in run_action\n    provider_action()\n  File 
\"/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py\",
 line 273, in action_run\n    tries=self.resource.tries, 
try_sleep=self.resource.try_sleep)\n  File 
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line 
70, in inner\n    result = function(command, **kwargs)\n  File 
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line 
92, in checked_call\n    tries=tries, try_sleep=try_sleep)\n  File 
\"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", line 
140, in _call_wrapper\n    result = _call(command, **kwargs_copy)\n  Fi
 le \"/usr/lib/python2.6/site-packages/resource_management/core/shell.py\", 
line 293, in _call\n    raise 
Fail(err_msg)\nresource_management.core.exceptions.Fail: Execution of 
'/usr/bin/kinit -c /var/lib/ambari-agent/tmp/tmpGyLePc -kt 
/etc/security/keytabs/smokeuser.headless.keytab ambari...@example.com' returned 
1. kinit(v5): Internal credentials cache error when initializing cache 
/var/lib/ambari-agent/tmp/tmpGyLePc",
> ```
> 
> # Cause
> The MR service check was incorrectly calling `cached_kinit_executor` which is 
> used for internally testing keytab files in service status checks. This found 
> an issue where the user executing the check was not able to create the 
> temporary ticket cache due to ACLs on the relevant directory and created file 
> - created as the user executing ambari-agent, not the specified user. 
> 
> # Solution
> Ensured the user specified in `cached_kinit_executor` owns the temporary 
> ticket cache and correctly kinit-ed in the Map Reduce service check function.
> 
> 
> Diffs
> -----
> 
>   
> ambari-common/src/main/python/resource_management/libraries/functions/security_commons.py
>  4ce2a5a 
>   
> ambari-server/src/main/resources/common-services/YARN/2.1.0.2.0/package/scripts/mapred_service_check.py
>  02fa57a 
>   
> ambari-server/src/test/python/stacks/2.0.6/YARN/test_mapreduce2_service_check.py
>  eef0faf 
> 
> Diff: https://reviews.apache.org/r/47729/diff/
> 
> 
> Testing
> -------
> 
> Manually tested
> 
> # Local test results: PASSED
> 
> # Jenkins test results: PENDING
> 
> 
> Thanks,
> 
> Robert Levas
> 
>

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