When running Ansible via a Mistral action, it's fairly easy to hit the size limits in Mistral for stdout length. The error message looks as such:
2017-09-19 12:31:40.140 21170 INFO workflow_trace [-] Task 'deploy_kubernetes' (7433eeee-60b3-4cce-b81a-cbf0d7787bad) [RUNNING -> ERROR, msg=Failed to complete action [error=Size of 'output' is 4907KB which exceeds the limit of 4096KB, action=tripleo.ansible-playbook, task=deploy_kubernetes]:
Traceback (most recent call last):
File "/usr/lib/python2.7/site-packages/mistral/engine/action_handler.py", line 37, in on_action_complete
action.complete(result)
File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 153, in wrapper
return f(*args, **kwargs)
File "/usr/lib/python2.7/site-packages/mistral/engine/actions.py", line 227, in complete
self.action_ex.output = self._prepare_output(result).to_dict()
File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/attributes.py", line 224, in __set__
instance_dict(instance), value, None)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/attributes.py", line 702, in set
value, old, initiator)
File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/attributes.py", line 711, in fire_replace_event
self._init_append_or_replace_token())
File "/usr/lib64/python2.7/site-packages/sqlalchemy/orm/events.py", line 1884, in wrap
fn(target, value, *arg)
File "/usr/lib/python2.7/site-packages/mistral/db/v2/sqlalchemy/models.py", line 92, in <lambda>
lambda t, v, o, i: validate_long_type_length(cls, attr_name, v)
File "/usr/lib/python2.7/site-packages/mistral/db/v2/sqlalchemy/models.py", line 77, in validate_long_type_length
size_limit_kb
SizeLimitExceededException: Size of 'output' is 4907KB which exceeds the limit of 4096KB
] (execution_id=90f62e35-0acb-4839-a086-5d57de830876)
So far the workaround has been to run ansible with `verbosity: 0`.
Regardless of this particular use case, it may be worth evaluating if Mistral action output limits shouldn't be higher.
I removed Mistral as it is already configurable, so just a tripleo issue.