Request message for CreateTask.
Required. The task to add. Task names have the following
format: projects/PROJECT_ID/locations/LOCATION_ID/queues/QUE
UE_ID/tasks/TASK_ID. The user can optionally specify a task
name. If a name is not
specified then the system will generate a random unique task
id, which will be set in the task returned in the
response. If [schedul
e_time][google.cloud.tasks.v2beta3.Task.schedule_time] is
not set or is in the past then Cloud Tasks will set it to the
current time. Task De-duplication: Explicitly specifying a
task ID enables task de-duplication. If a task's ID is
identical to that of an existing task or a task that was
deleted or executed recently then the call will fail with
[ALREADY_EXISTS][google.rpc.Code.ALREADY_EXISTS]. If the
task's queue was created using Cloud Tasks, then another task
with the same name can't be created for 1hour after the
original task was deleted or executed. If the task's queue was
created using queue.yaml or queue.xml, then another task with
the same name can't be created for 9days after the original
task was deleted or executed. Because there is an extra
lookup cost to identify duplicate task names, these
CreateTask
calls have significantly increased latency. Using hashed
strings for the task id or for the prefix of the task id is
recommended. Choosing task ids that are sequential or have
sequential prefixes, for example using a timestamp, causes an
increase in latency and error rates in all task commands. The
infrastructure relies on an approximately uniform distribution
of task ids to store and serve tasks efficiently.