On Sunday 23 May 2021 at 13:15:13, lejeczek wrote:
> Hi guys.
>
> I have a regular & pretty vanilla reverse proxy
Can you show us the configuration for this?
> to a Linux container (also Apache) which is on the same host.
Out of interest, why? Why use Apache as a reverse proxy to another Apache
instance on the same machine?
> Sometimes and randomly - if there is only pattern if behavior then I'd say
> proxy does 503 299 after "some" period of inactivity - would not proxy.
Show us more detail from the access log. You say this happens after some
period of inactivity - can you show us all the log file lines you get after
that inactivity, when the problem occurs?
> Suffices I do, I'm on CentOS,:
> -> $ systemctl reload httpd.service
> and all comes back up and site is available again.
Does that restart both Apache instances or just the reverse proxy?
> I'll be grateful for any ideas and suggestion on how to
> troubleshoot and fix it.
I'd start by:
- examining the log files of the proxy server
- examining the log files of the web server
- checking that the web service is running when the proxy complains
- accessing the web service directly (bypass the proxy) to see whether the
response is as expected
Antony.
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