Re: Query on s6-log and s6-supervise

From: Arjun D R <>
Date: Wed, 9 Jun 2021 10:31:59 +0530

Thanks for the details. We already have such an implementation (multiple
producers with one consumer) but still our s6-log instances are high. Many
of our services require direct logger services. We can reduce the direct
logger services by creating a funnel and using regex to separate the logs
but that indeed is a risky and complicated process. I am just interested to
confirm the memory usage of s6-log and s6-supervise processes.


On Wed, Jun 9, 2021 at 9:11 AM Dewayne Geraghty <> wrote:

> Apologies, I'd implied that we have multiple s6-supervise processes
> running and their children pipe to one file which is read by one s6-log
> file.
> You can achieve this outcome by using s6-rc's, where one consumer can
> receive multiple inputs from producers.
> There is a special (but not unique) case where a program, such as apache
> which will have explicit log files (defined in apache's config file) to
> record web-page accesses and error logs, on a per server basis. Because
> all the supervised apache instances can write to one error logfile, I
> instructed apache to write to a pipe. Multiple supervised apache
> instances using the one pipe (aka funnel), which was read by one s6-log.
> This way reducing the number of (s6-log) processes. I could do the
> same with the access logs and use the regex function of s6-log, but I
> tend to simplicity.
Received on Wed Jun 09 2021 - 07:01:59 CEST

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