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Implement task restart policies #280

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closes #277

* Test: test_add_task_restart_policy_patterns
* Test: test_get_task_restart_policy_patterns
* Test: test_remove_task_restart_policy_patterns
* Test: test_clear_task_restart_policy_patterns
* Test: test_task_resolve_restarts
* TaskRestartPattern
* TaskRestartPolicy
* TaskHistory
* Removed TaskRestartPolicy and TaskHistory
* Added Traceback
* TaskReturnPattern: Confirm that the input pattern is a string type and that it is not empty.
* Traceback: Confirm that the input is a list of strings and that none of them are empty.
@ianmkenney ianmkenney force-pushed the feature/iss-277-restart-policy branch from 7e82f54 to 6a167f1 Compare July 18, 2024 20:46
ianmkenney and others added 24 commits July 22, 2024 14:24
Similar to `TaskHub`s, the `TaskRestartPattern` needs additonal hashed
data to uniquely identify it as a Neo4j node (via the gufe key). The
unit tests have been updated to reflect this change.
`statestore` methods have been added to modify the database state:

* add_task_restart_patterns
* remove_task_restart_patterns
* get_task_restart_patterns

Tests were added for each method in the integration tests for the
statestore.
The `add_task_restart_patterns` method now establishes the APPLIES
relationship between the each new pattern and all Tasks ACTIONED
on the corresponding TaskHub.

Added testing for creation of the APPLIES relationship, asserting
the number of created connections over multiple TaskHubs and Tasks.

Further subdivided the test classes.

Additionally added a `set_task_restart_patterns_max_retries` method
for updating the max_retries of a TaskRestartPattern.
"actioning" a Task on a TaskHub with preexisting TaskRestartPatterns
created the APPLIES relationship between them with a num_retries value
of 0. This behavior is tested in the test_action_task function in
the statestore.
When an actioned Task is canceled and also has an APPLIES relationship
with a TaskRestartPattern, APPLIES is removed between the two
nodes.

Removed org, project, and campaign fields since they are not
necessary for the APPLIES relationship.
Setting an actioned Task status to the following statuses now removes
the APPLIES relationship from attached TaskRestartPatterns:

* complete
* invalid
* deleted

NOTE: tests have not been added for this yet
Confirming that changing the status of an actioned Task to any of
the following removes the APPLIES relationship:

* complete
* invalid
* deleted
New statestore method placeholders:
  - add_task_traceback
  - resolve_task_restarts

The compute api will add a Task Traceback and resolve restarts for
returned failed Tasks.

When a list of restart patterns are added, restarts are resolved.
* Renamed add_task_traceback to add_protocol_dag_result_ref_traceback
* Added tests for add_protocol_dag_result_ref_traceback
Implemented half of the resolve_task_restarts test
With this decorator, if a transaction isn't passed as a keyword arg, one
is automatically created (and closed). This allows a chaining behavior
where many method calls share a single transaction object.
* Removed custom tokenization
* Implemented _defaults to allow default tokenization to work
cancel_map has been changed from a defaultdict to a base dict and
instead using the dict.get method to return None. Additionally added a
set of all task/taskhub pairs that is later used to determine what
should be canceled.

I've also added grouping on taskhubs so the number of calls to
cancel_tasks is minimized.
ianmkenney and others added 3 commits September 9, 2024 12:01
Also expanded test to check behavior of the task that was meant to be
waiting.
We don't want to change `_defaults()` from what's done in the base class
unless we have real default values to leave out of the hash.
…olicy_resolve_restarts

Restart policy: resolve restarts
@pep8speaks
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pep8speaks commented Sep 19, 2024

Hello @ianmkenney! Thanks for updating this PR. We checked the lines you've touched for PEP 8 issues, and found:

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Comment last updated at 2024-09-25 15:23:32 UTC

The addition of source_keys and failure_keys was not included in the
unit tests so all initializations of Tracebacks failed. I've added
default values for the test class.
* add_task_restart_patterns
* remove_task_restart_patterns
* get_task_restart_patterns
* set_task_restart_patterns_max_retries

Additionally, I added the get_taskhubs method to Neo4jStore since
get_taskhub will only get the taskhub for a single network at a
time. It might make sense to replace the old method with this new one.
@ianmkenney ianmkenney force-pushed the feature/iss-277-restart-policy branch from 1071369 to f03417c Compare October 8, 2024 17:26
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@dotsdl dotsdl marked this pull request as ready for review October 9, 2024 21:32
@dotsdl dotsdl self-requested a review October 25, 2024 23:01
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Add user-settable server-side Task restart policy, per-AlchemicalNetwork
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