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https://reviews.apache.org/r/49511/
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Review request for Ambari and Dmitro Lisnichenko.


Bugs: AMBARI-17524
    https://issues.apache.org/jira/browse/AMBARI-17524


Repository: ambari


Description
-------

Traceback (most recent call last):
      File 
"/var/lib/ambari-agent/cache/common-services/FALCON/0.5.0.2.1/package/scripts/falcon_server.py",
 line 177, in <module>
        FalconServer().execute()
      File 
"/usr/lib/python2.6/site-packages/resource_management/libraries/script/script.py",
 line 280, in execute
        method(env)
      File 
"/var/lib/ambari-agent/cache/common-services/FALCON/0.5.0.2.1/package/scripts/falcon_server.py",
 line 50, in start
        falcon('server', action='start', upgrade_type=upgrade_type)
      File "/usr/lib/python2.6/site-packages/ambari_commons/os_family_impl.py", 
line 89, in thunk
        return fn(*args, **kwargs)
      File 
"/var/lib/ambari-agent/cache/common-services/FALCON/0.5.0.2.1/package/scripts/falcon.py",
 line 194, in falcon
        environment=environment_dictionary)
      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 
'/usr/hdp/current/falcon-server/bin/falcon-start -port 15000' returned 1. 
Hadoop home is set, adding libraries from 
'/usr/hdp/current/hadoop-client/bin/hadoop classpath' into falcon classpath
    falcon running as process 3443. Stop it first.
    

This happens because falcon start was not idempotent unlike other start
command.


Diffs
-----

  
ambari-server/src/main/resources/common-services/FALCON/0.5.0.2.1/package/scripts/falcon.py
 c2f1f53 
  ambari-server/src/test/python/stacks/2.1/FALCON/test_falcon_server.py 6f81b15 

Diff: https://reviews.apache.org/r/49511/diff/


Testing
-------

mvn clean test


Thanks,

Andrew Onischuk

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