Hello,

On Mon, 1 Jul 2019 at 12:14, Lukas Tribus <li...@ltri.eu> wrote:
>
> Hello Veiko,
>
>
> On Mon, 1 Jul 2019 at 12:12, Veiko Kukk <vk...@xvidservices.com> wrote:
> >
> > Hi
> >
> > Sometimes (infrequently) all external checks hang and time out:
> > * Has happened with versions 1.9.4 and 1.9.8 on multiple servers with
> > nbproc 1 and nbthread set to (4-12) depending on server.
> > * Happens infrequently, last one happened after 10 days of uptime.
> > * External checks are written in python and write errors into their own
> > log file directly. When hanging happens, nothing is logged by external
> > check.
> > * Only external checks fail, common 'option httpcheck' does not fail at
> > the same time.
>
> External checks are not thread-safe, that's a bug.
>
> Could you try the suggest patch in:
>
> https://github.com/haproxy/haproxy/issues/140#issuecomment-507119534

Sorry, I think I got confused here with something else ... the bug is
about signals being blocked, which is not your problem.



Lukas

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