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Re: Shepherd does not recycle zombie processes
From: |
Ludovic Courtès |
Subject: |
Re: Shepherd does not recycle zombie processes |
Date: |
Thu, 24 Nov 2016 14:22:36 +0100 |
User-agent: |
Gnus/5.13 (Gnus v5.13) Emacs/25.1 (gnu/linux) |
Dale Mellor <address@hidden> skribis:
> On Mon, 2016-11-07 at 09:53 +0100, Ludovic Courtès wrote:
>> Hi,
>>
>> Carlo Zancanaro <address@hidden> skribis:
>>
>> > I've had problems with Shepherd and its daemonize action. If I run
>> > daemonize (as the first thing when Shepherd starts) then it fails to handle
>> > signals from child processes.
>>
>> Could it be that you invoke the ‘daemonize’ action after respawnable
>> processes have been started? The manual has this caveat (info
>> "(shepherd) The root and unknown services"):
>>
>> ‘daemonize’
>> Fork and go into the background. This should be called before
>> respawnable services are started, as otherwise we would not get the
>> ‘SIGCHLD’ signals when they terminate.
>>
>> HTH,
>> Ludo’.
>
> Update: I'm no longer making any use of the daemonize method, instead
> simply running as a detached process: `( shepherd & )' at a bash
> command-line. It works perfectly well now, reaping (and restarting)
> dead children as necessary.
OK. (That’s also what I do for my user Shepherd.)
> Another problem I see though is that if there are jobs which depend on
> one which has died, those jobs are not recycled. Probably this has not
> been considered yet, and I'm thinking that a bit more thought needs to
> go into the overall design of this thing... (I guess this also ties in
> with the concepts of run-levels and hot-re-configuring the shepherd
> core). Wish I had time to look into it.
Certainly, help welcome! :-)
Thanks,
Ludo’.
- Shepherd does not recycle zombie processes, Dale Mellor, 2016/11/05
- Message not available
- Message not available
- Re: Shepherd does not recycle zombie processes, Carlo Zancanaro, 2016/11/06
- Re: Shepherd does not recycle zombie processes, Ludovic Courtès, 2016/11/07
- Re: Shepherd does not recycle zombie processes, Carlo Zancanaro, 2016/11/07
- Re: Shepherd does not recycle zombie processes, Ludovic Courtès, 2016/11/09
- Re: Shepherd does not recycle zombie processes, Carlo Zancanaro, 2016/11/10
- Re: Shepherd does not recycle zombie processes, Dale Mellor, 2016/11/24
- Re: Shepherd does not recycle zombie processes,
Ludovic Courtès <=
Re: Shepherd does not recycle zombie processes, Ludovic Courtès, 2016/11/06