Hello, On Mon, 1 Jul 2019 at 12:27, Lukas Tribus <li...@ltri.eu> wrote: > > > 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.
The bug you may be affected by is: https://github.com/haproxy/haproxy/issues/141 Can you check what happens with: nbthread 1 cheers, lukas