[mod.computers.vax] User Symbionts and the Job Controller

RAY@CRVAX.SRI.COM.UUCP (01/24/87)

Does anyone know if there is a minimum time required before replying to
the job controller that a job has finished?  I have noticed that when a
queue is backed up with short jobs , on the order of 0.10 - 0.50 seconds
of elapsed real time, that jobs can be lost.

We see this behaviour on a network queue that uses tcp/ip over ethernet
(replaced the output routine in the print symbiont) and with a
queue that delivers mail (user written symbiont).

The only thing that seems to prevent the job lossage is to put delays
in the symbiont to prevent the final reply from being sent too soon.

I was wondering if anyone else had seen this problem?  If so did you
come up with a fix? Or, find some other work around?

Ray