Database Models (lockmgr.models)¶
Functions
Classes
|
-
class
lockmgr.models.
Lock
(name, locked_by, lock_process, locked_until, created_at, updated_at)[source]¶ -
exception
DoesNotExist
¶
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exception
MultipleObjectsReturned
¶
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property
expired
¶ Property - returns
True
if the Lock is past expiry (locked_until
), otherwise False
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property
expires_in
¶ The amount of time until this lock expires, as a
timedelta
- orNone
if it doesn’t expire
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property
expires_seconds
¶ The amount of seconds until this lock expires as integer seconds - or
None
if it doesn’t expire
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locked_by
¶ Name of the node / app which created this lock
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locked_until
¶ Locks have an expiration time, to help avoid the issue of stuck locks, either due to forgetting to add cleanup code, or simply due to the app/server crashing before it can release the lock.
After a lock has expired, it’s assumed that the lock is stale and needs to be removed, and the affected resources are safe to use.
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name
¶ Unique name of the lock, referring to what specific resource(s) is locked
-
exception