[Catalyst] Keep Plack -r working when commandline closed...?
Octavian Rasnita
orasnita at gmail.com
Tue Oct 27 07:21:54 GMT 2015
Thanks. The conclusion is that if huponexit is set to false we can simply run processes in background appending & at the end of the command line.
So we don't need tmux nor screen unless we need other features offered by them.
--Octavian
----- Original Message -----
From: Lasse Makholm
To: The elegant MVC web framework
Sent: Monday, October 26, 2015 11:37 PM
Subject: Re: [Catalyst] Keep Plack -r working when commandline closed...?
On Mon, Oct 26, 2015 at 9:55 AM, Octavian Rasnita <orasnita at gmail.com> wrote:
When I connect to Linux servers using SSH and run the programs using
perl program.pl > something.log 2>&1 &
then I can use the command exit to close the SSH console but the program continues to run.
I remember that in past I needed to use nohup, but in last years I didn't need it anymore.
Is the SSH connection a special case but it doesn't work when using a real bash console directly?
Sounds like the huponexit is not set in your shell:
http://stackoverflow.com/questions/21294283/when-did-hup-stop-getting-sent-and-what-can-i-do-about-it
/L
--Octavian
----- Original Message -----
From: Len Jaffe
To: kieren at diment.org ; The elegant MVC web framework
Sent: Monday, October 26, 2015 5:13 AM
Subject: Re: [Catalyst] Keep Plack -r working when commandline closed...?
& just backgrounds a job. If you close the terminal, you lose job control.
If you use tmux, you can close the terminal, but leave the session running, and reattach to the session later.
It is well work looking into.
On Sat, Oct 24, 2015 at 1:29 AM, Kieren Diment <diment at gmail.com> wrote:
Tmux is the poor man's deployment pathway ;). I use it to keep long running jobs going between logins a lot too, as well as for having an editor in the right place from where I last left off. All round a primo useful tool. Also handy for persistent IRC connections etc.
On Sat, Oct 24, 2015 at 3:24 PM, Andrew <catalystgroup at unitedgames.co.uk> wrote:
A further search online,
throws up that screen and tmux can be useful if the app you want to run in the background needs input now and again.
----- Original Message -----
From: Andrew
To: The elegant MVC web framework
Sent: Saturday, October 24, 2015 5:06 AM
Subject: Re: [Catalyst] Keep Plack -r working when commandline closed...?
Why is it better to use these over using an "&"....?
Or are you simply recommending them generally, due to their usefulness all round?
Yours,
Andrew.
----- Original Message -----
From: Kieren Diment
To: The elegant MVC web framework
Sent: Friday, October 23, 2015 10:48 PM
Subject: Re: [Catalyst] Keep Plack -r working when commandline closed...?
Tmux is generally newer and easier to use than screen, highly recommended.
On Sat, Oct 24, 2015 at 7:41 AM, Len Jaffe <lenjaffe at jaffesystems.com> wrote:
I'd still consider using screen or tmux...
On Fri, Oct 23, 2015 at 1:48 PM, Andrew <catalystgroup at unitedgames.co.uk> wrote:
Turns out it's super easy to run it in the background, =).
You just add "&" to the end of the commandline, =D.
^_^ Am learning these little server tricks, ;-).
[Tweeted Tatsuhiko Miyagawa of Plack fame, who was kind enough to promptly
respond, with this little gem, =D. Yay!]
Yours,
Andrew.
----- Original Message -----
From: "Trevor Leffler" <tleffler at uw.edu>
To: "The elegant MVC web framework" <catalyst at lists.scsys.co.uk>
Sent: Friday, October 23, 2015 4:28 PM
Subject: Re: [Catalyst] Keep Plack -r working when commandline closed...?
What about wrapping your shell session with screen?
$ man screen
--Trevor
On 10/23/2015 08:21 AM, Andrew wrote:
>
> I've ended up using Plackup to start the catalyst app's psgi script (still
> via fast cgi),
> and I'm using -r to indicate it should watch for changes, and reload the
> server when changes are detected.
>
> It does this fine, as long as my commandline terminal is still open.
> The moment I close it, the server continues to run, yet any watching for
> changes, killing, and restarting no longer happens (as far as I can tell).
>
> Is there any way to get Plack's scripts that watch and reload (i.e.
> Restarter.pm, etc), to continue to run after I close OSX's terminal window
/
> end the SSH session?
>
>
> Many thanks for any insights offered,
>
> Yours,
> Andrew.
>
>
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