supervision - discussion about system services, daemon supervision, init, runlevel management, and tools such as s6 and runit
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From: Tor Rune Skoglund <trs@fourc.eu>
To: Laurent Bercot <ska-supervision@skarnet.org>,
	"supervision@list.skarnet.org" <supervision@list.skarnet.org>
Subject: Re: "Back off" setting for crashing services with s6+openrc?
Date: Tue, 4 Oct 2022 16:16:25 +0200	[thread overview]
Message-ID: <424271f5-f2ab-7fe9-e795-2668cda7fe40@fourc.eu> (raw)
In-Reply-To: <emb087a60d-4590-4260-bfba-cf19c1c83ee5@5e65708a.com>

Den 30.09.2022 15:21, skrev Laurent Bercot:
>  There is, however, one improvement I think I can safely make.
>  Currently, the 1-second delay is computed from when the service 
> *starts*:
> if it has been running for more than one second, and crashes, it restarts
> immediately, even if it has only been busy initializing, which causes
> the resource hog OP is experiencing.
>  I could change it to being computed from when the service is *ready*:
> if the service dies before being ready, s6-supervise *always* waits for
> 1 second before restarting. The delay is only skipped if the service has
> been *ready* for 1 second or more, which means it really serving and
> either idle (i.e. chill resource-wise) or hot (i.e. you don't want to
> delay it).
>  Does that sound like a valid improvement to you folks?

To me this seems like a relevant improvement that would catch a 
problematic edge case issue.

- Tor Rune

  reply	other threads:[~2022-10-04 14:16 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-09-22 19:45 Tor Rune Skoglund
2022-09-22 20:21 ` John W Higgins
2022-09-23  7:29   ` Tor Rune Skoglund
2022-09-23 16:44   ` Alyssa Ross
2022-09-24 12:33   ` Oliver Schad
2022-09-26 23:00   ` Colin Booth
2022-09-30  9:34     ` Oliver Schad
2022-09-30 13:21       ` Laurent Bercot
2022-10-04 14:16         ` Tor Rune Skoglund [this message]
2022-10-10 16:20           ` Laurent Bercot
2022-10-11  0:38         ` Dewayne

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