Action mistral.environments_get cannot handle more than one publish

During testing [1] I've discovered weird behaviour, that the action freezes when there are more than <% task().result.variables.whatever %> statements in publish. If I comment any of those two, update workbook and run it, the get_database_credentials pass to next action. However in the implementation as is currently in [1], it always fails with:

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| Field | Value |
+--------------------+----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------+
| ID | 41ba5fe0-a4ee-414b-9e4c-7ee8009fc234 |
| Workflow ID | 3b22ad9a-b3ca-4290-b3df-91b740838719 |
| Workflow name | tripleo.undercloud_backup.v1.backup |
| Workflow namespace | |
| Description | |
| Task Execution ID | <none> |
| Root Execution ID | <none> |
| State | ERROR |
| State info | Failed to handle action completion [error=Can not evaluate YAQL expression [expression=task().result, error=Task execution not found [id=57457668-705e-4164-bee4-8bb7560dbfd8], data={}], wf=tripleo.undercloud_backup.v1.backup, task=get_database_credentials, action=mistral.environments_get]: |
| | Traceback (most recent call last): |
| | File "/usr/lib/python2.7/site-packages/mistral/engine/task_handler.py", line 113, in _on_action_complete |
| | task.on_action_complete(action_ex) |
| | File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 160, in wrapper |
| | result = f(*args, **kwargs) |
| | File "/usr/lib/python2.7/site-packages/mistral/engine/tasks.py", line 444, in on_action_complete |
| | self.complete(state, state_info) |
| | File "/usr/lib/python2.7/site-packages/osprofiler/profiler.py", line 160, in wrapper |
| | result = f(*args, **kwargs) |
| | File "/usr/lib/python2.7/site-packages/mistral/engine/tasks.py", line 248, in complete |
| | data_flow.publish_variables(self.task_ex, self.task_spec) |
| | File "/usr/lib/python2.7/site-packages/mistral/workflow/data_flow.py", line 215, in publish_variables |
| | task_ex.published = expr.evaluate_recursively(branch_vars, expr_ctx) |
| | File "/usr/lib/python2.7/site-packages/mistral/expressions/__init__.py", line 100, in evaluate_recursively |
| | data[key] = _evaluate_item(data[key], context) |
| | File "/usr/lib/python2.7/site-packages/mistral/expressions/__init__.py", line 79, in _evaluate_item |
| | return evaluate(item, context) |
| | File "/usr/lib/python2.7/site-packages/mistral/expressions/__init__.py", line 71, in evaluate |
| | return evaluator.evaluate(expression, context) |
| | File "/usr/lib/python2.7/site-packages/mistral/expressions/yaql_expression.py", line 159, in evaluate |
| | cls).evaluate(trim_expr, data_context) |
| | File "/usr/lib/python2.7/site-packages/mistral/expressions/yaql_expression.py", line 113, in evaluate |
| | ", data=%s]" % (expression, str(e), data_context) |
| | YaqlEvaluationException: Can not evaluate YAQL expression [expression=task().result, error=Task execution not found [id=57457668-705e-4164-bee4-8bb7560dbfd8], data={}] |
| | |
| Created at | 2019-03-21 12:08:19 |
| Updated at | 2019-03-21 12:13:29 |
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[1] https://review.openstack.org/#/c/640344/2/workbooks/undercloud_backup.yaml