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wrap smart inv cache update w/ advisory lock

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* Two job templates that use the same smart inventory running at the
same time can easily race to recompute the smart inventory <-> host
mapping. In this case, bulk_create() can throw an error when racing.
* The per-smart-inventory advisory lock ensures that the state of the
system is consistent & that bulk_create() runs in isolation.
This commit is contained in:
chris meyers 2019-06-21 08:46:17 -04:00
parent e269634afc
commit acb6d9c4d1
1 changed files with 20 additions and 19 deletions
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awx/main/tasks.py
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@ -602,6 +602,7 @@ def update_inventory_computed_fields(inventory_id, should_update_hosts=True):
def update_smart_memberships_for_inventory(smart_inventory):
with advisory_lock('update_smart_memberships_for_inventory-{}'.format(smart_inventory.id)):
current = set(SmartInventoryMembership.objects.filter(inventory=smart_inventory).values_list('host_id', flat=True))
new = set(smart_inventory.hosts.values_list('id', flat=True))
additions = new - current