public touch ()
The touch command allows a worker to request more time to work on a job. This is useful for jobs that potentially take a long time, but you still want the benefits of a TTR pulling a job away from an unresponsive worker. A worker may periodically tell the server that it’s still alive and processing a job (e.g. it may do this on DEADLINE_SOON). The command postpones the auto release of a reserved job until TTR seconds from when the command is issued.
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