Re: [bitbake-devel] [PATCH] process.py: Increase bitbake timeout and add logs

["Richard Purdie" <richard.purdie@linuxfoundation.org>]

On Tue, 2021-03-02 at 15:51 -0600, Chaitanya Vadrevu wrote:
> We have started seeing "Unable to connect to bitbake server ..." errors on
> our build farm consistently with 60s timeout. Increasing the timeout to
> 300s and logging every 10s.
> 
> Signed-off-by: Chaitanya Vadrevu <chaitanya.vadrevu@ni.com>
> ---
>  lib/bb/server/process.py | 15 +++++++++++----
>  1 file changed, 11 insertions(+), 4 deletions(-)

Taking a step back, is it reasonable for bitbake to "disappear" 
for more than a minute? I've not wanted to increase this value
too much as for an interactive user its a pretty poor situation to
stall for delays this long.

We're also seeing these on the project autobuilder occasionally,
they seem load related. Have you any monitoring which says what your
build farm is doing when these timeouts happen? Did increasing it to
300s work?

I have a suspicion its IO load related and probably around syncing
files at bitbake exit that there is the issue.

Cheers,

Richard