Details
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Bug
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Status: To Do
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Minor
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Resolution: Unresolved
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0.4.1
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None
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None
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Metron 0.4.1-rc4
Description
After upgrading from 0.4.1-rc (from last week) to rc4, both Metron Management UI and Metron REST fail to start with an error related to "METRON_ESCALATION_TOPIC="metron_escalation_topic"".
Metron Management UI Start output:
Traceback (most recent call last):
File "/var/lib/ambari-agent/cache/common-services/METRON/0.4.1/package/scripts/management_ui_master.py", line 95, in <module>
ManagementUIMaster().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/METRON/0.4.1/package/scripts/management_ui_master.py", line 67, in start
self.configure(env)
File "/var/lib/ambari-agent/cache/common-services/METRON/0.4.1/package/scripts/management_ui_master.py", line 47, in configure
content=Template("metron.j2")
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 123, in action_create
content = self._get_content()
File "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py", line 160, in _get_content
return content()
File "/usr/lib/python2.6/site-packages/resource_management/core/source.py", line 51, in _call_
return self.get_content()
File "/usr/lib/python2.6/site-packages/resource_management/core/source.py", line 142, in get_content
rendered = self.template.render(self.context)
File "/usr/lib/python2.6/site-packages/ambari_jinja2/environment.py", line 891, in render
return self.environment.handle_exception(exc_info, True)
File "/var/lib/ambari-agent/cache/common-services/METRON/0.4.1/package/templates/metron.j2", line 42, in top-level template code
METRON_ESCALATION_TOPIC="metron_escalation_topic"
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/config_dictionary.py", line 73, in _getattr_
raise Fail("Configuration parameter '" + self.name + "' was not found in configurations dictionary!")
resource_management.core.exceptions.Fail: Configuration parameter 'metron_escalation_topic' was not found in configurations dictionary!
Metron REST Start output:
Traceback (most recent call last):
File "/var/lib/ambari-agent/cache/common-services/METRON/0.4.1/package/scripts/rest_master.py", line 83, in <module>
RestMaster().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/METRON/0.4.1/package/scripts/rest_master.py", line 55, in start
self.configure(env)
File "/var/lib/ambari-agent/cache/common-services/METRON/0.4.1/package/scripts/rest_master.py", line 43, in configure
content=Template("metron.j2")
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 123, in action_create
content = self._get_content()
File "/usr/lib/python2.6/site-packages/resource_management/core/providers/system.py", line 160, in _get_content
return content()
File "/usr/lib/python2.6/site-packages/resource_management/core/source.py", line 51, in _call_
return self.get_content()
File "/usr/lib/python2.6/site-packages/resource_management/core/source.py", line 142, in get_content
rendered = self.template.render(self.context)
File "/usr/lib/python2.6/site-packages/ambari_jinja2/environment.py", line 891, in render
return self.environment.handle_exception(exc_info, True)
File "/var/lib/ambari-agent/cache/common-services/METRON/0.4.1/package/templates/metron.j2", line 42, in top-level template code
METRON_ESCALATION_TOPIC="metron_escalation_topic"
File "/usr/lib/python2.6/site-packages/resource_management/libraries/script/config_dictionary.py", line 73, in _getattr_
raise Fail("Configuration parameter '" + self.name + "' was not found in configurations dictionary!")
resource_management.core.exceptions.Fail: Configuration parameter 'metron_escalation_topic' was not found in configurations dictionary!
After posting this on the mailing list, both cestella and ottobackwards came up with the solution:
The fix for right now is to update the Metron escalation topic setting in the Metron Config in ambari under "Metron REST" from the default "escalation" to something else, "metron_escalation" for instance. Afterwards, Metron REST & Management UI start without issues.