maxRetryDuration property

If positive, max_retry_duration specifies the time limit for retrying a failed task, measured from when the task was first attempted.

Once max_retry_duration time has passed and the task has been attempted max_attempts times, no further attempts will be made and the task will be deleted. If zero, then the task age is unlimited. If unspecified when the queue is created, Cloud Tasks will pick the default. The value must be given as a string that indicates the length of time (in seconds) followed by s (for "seconds"). For the maximum possible value or the format, see the documentation for Duration. max_retry_duration will be truncated to the nearest second. This field has the same meaning as task_age_limit in queue.yaml/xml.