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only retry if the broadcast message task is in sending

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previously we would retry if the task was queued up for retry but the
status is in "received-ack" or "received-err". We don't expect that a
task will be retried after getting this status, but if there are
duplicate tasks that could happen. Lets plan for the worst by saying
"only process a retry if the task is currently in sending".

this way, if a duplicate task is on retry and the first task goes
through succesfully, the duplicate task will give up.
This commit is contained in:
Leo Hemsted
2021-02-18 12:02:34 +00:00
parent 90e82aff3e
commit 0088bcd98b
3 changed files with 12 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
app/__init__.py
View File

@@ -381,7 +381,7 @@ def setup_sqlalchemy_events(app):
'host': current_app.config['NOTIFY_APP_NAME'], # worker name 'host': current_app.config['NOTIFY_APP_NAME'], # worker name
'url_rule': current_task.name, # task name 'url_rule': current_task.name, # task name
} }
# anything else. migrations possibly. # anything else. migrations possibly, or flask cli commands.
else: else:
current_app.logger.warning('Checked out sqlalchemy connection from outside of request/task') current_app.logger.warning('Checked out sqlalchemy connection from outside of request/task')
connection_record.info['request_data'] = { connection_record.info['request_data'] = {

4
app/celery/broadcast_message_tasks.py
View File

@@ -52,11 +52,11 @@ def check_provider_message_should_send(broadcast_event, provider):
""" """
current_provider_message = broadcast_event.get_provider_message(provider) current_provider_message = broadcast_event.get_provider_message(provider)
# if this is the first time a task is being executed, it won't have a provider message yet # if this is the first time a task is being executed, it won't have a provider message yet
if current_provider_message and current_provider_message.status == BroadcastProviderMessageStatus.TECHNICAL_FAILURE: if current_provider_message and current_provider_message.status != BroadcastProviderMessageStatus.SENDING:
raise CBCProxyFatalException( raise CBCProxyFatalException(
f'Cannot send broadcast_event {broadcast_event.id} ' + f'Cannot send broadcast_event {broadcast_event.id} ' +
f'to provider {provider}: ' + f'to provider {provider}: ' +
'It is already in status technical-failure' f'It is in status {current_provider_message.status}'
) )
if broadcast_event.transmitted_finishes_at < datetime.utcnow(): if broadcast_event.transmitted_finishes_at < datetime.utcnow():

9
tests/app/celery/test_broadcast_message_tasks.py
View File

@@ -701,15 +701,20 @@ def test_check_provider_message_should_send_doesnt_raise_if_newer_event_not_acke
@pytest.mark.parametrize('existing_message_status', [ @pytest.mark.parametrize('existing_message_status', [
BroadcastProviderMessageStatus.SENDING, BroadcastProviderMessageStatus.SENDING,
pytest.param(
BroadcastProviderMessageStatus.ACK, BroadcastProviderMessageStatus.ACK,
marks=pytest.mark.xfail(raises=CBCProxyFatalException)
),
pytest.param(
BroadcastProviderMessageStatus.ERR, BroadcastProviderMessageStatus.ERR,
marks=pytest.mark.xfail(raises=CBCProxyFatalException)
),
pytest.param( pytest.param(
BroadcastProviderMessageStatus.TECHNICAL_FAILURE, BroadcastProviderMessageStatus.TECHNICAL_FAILURE,
marks=pytest.mark.xfail(raises=CBCProxyFatalException) marks=pytest.mark.xfail(raises=CBCProxyFatalException)
), ),
]) ])
def test_check_provider_message_should_send_doesnt_raise_if_current_event_already_has_provider_message( def test_check_provider_message_should_send_raises_if_current_event_already_has_provider_message_not_in_sending(
sample_template, sample_template,
existing_message_status existing_message_status
): ):