Re: Supervising a pipeline?

Laurent Bercot: You can't supervise a pipeline per se; you need to supervise both processes in the pipeline independently, and make sure the pipe isn't broken when one of them dies. So, have "exec inotifywait /dev/disk" as foobar/run, and have "exec automounter.py" as foobar/log/run. This

Supervising a pipeline?

Hi all, I'm making a thumb drive automounter using inotifywait piped into my Python program, which detects the proper CREATES and DELETES and automounts and autoumounts accordingly. Here's what I thought the run script would look like (runit dialect): #!/bin/sh exec /usr/bin/inotifywait

Re: Supervising a pipeline?

Two things: I'm not at a computer but I'm *pretty* sure exec foo | bar doesn't work right? But more importantly, if the python program dies, the inotifywatch will get a SIGPIPE when it writes and then almost assuredly crash itself. You could kill the python program and see. -- sent from a

Re: Supervising a pipeline?

On 2015-12-26 18:09, Steve Litt wrote: #!/bin/sh exec /usr/bin/inotifywait /dev/disk | /usr/local/bin/automounter.py You can't supervise a pipeline per se; you need to supervise both processes in the pipeline independently, and make sure the pipe isn't broken when one of them dies. So, have

Re: Supervising a pipeline?

On 12/26/2015 12:09 PM, Steve Litt wrote: Is this doable in a way consistent with supervision suites? Pipelines can form practically indefinite graphs in scope owing to the nature of fds (modulo process control limitations and space constraints). You might be interested in pipexec, which

Re: Supervising a pipeline?

On Sat, 26 Dec 2015 18:25:22 +0100 Laurent Bercot wrote: > On 2015-12-26 18:09, Steve Litt wrote: > > #!/bin/sh > > exec /usr/bin/inotifywait /dev/disk > > | /usr/local/bin/automounter.py > > You can't supervise a pipeline per se; you need to supervise > both

Re: Supervising a pipeline?

On 12/26/15 7:09 PM, Steve Litt wrote: > I'm making a thumb drive automounter using inotifywait piped into my > Python program, which detects the proper CREATES and DELETES and > automounts and autoumounts accordingly. > > Here's what I thought the run script would look like (runit dialect): > >