[OE-core] Connectivity check uris
andrey.z at gmail.com
Thu Jan 23 13:22:54 UTC 2020
On Thu, Jan 23, 2020 at 2:14 PM Jean-Marie LEMETAYER
<jean-marie.lemetayer at savoirfairelinux.com> wrote:
> Hi folks,
> I have noticed some hang-ups at the beginning of my builds on the master branch.
> I have search a little and discovered that the connectivity check made by poky
> was the root cause. In fact connectivity check use the CONNECTIVITY_CHECK_URIS
> variable which is by default set to "https://www.example.com/".
> So I have made some tests with a little script which gets the URI 100 times:
> $ cat connectivity_check.sh
> local ok=0
> for i in $(seq 100)
> $@ > /dev/null && ok=$(($ok + 1))
> echo $ok $@
> connectivity_check wget -qO- --timeout=1 --tries=1 $1
> connectivity_check curl -s --connect-timeout 1 $1
> Note that in the script, I use wget and curl to see if there are any differences
> but I don't think that's a thing.
> Here are the results:
> $ time ./connectivity_check.sh https://example.com
> 45 wget -qO- --timeout=1 --tries=1 https://example.com
> 45 curl -s --connect-timeout 1 https://example.com
> real 2m23.595s
> user 0m3.352s
> sys 0m1.834s
> $ time ./connectivity_check.sh https://openembedded.org
> 100 wget -qO- --timeout=1 --tries=1 https://openembedded.org
> 100 curl -s --connect-timeout 1 https://openembedded.org
> real 4m36.188s
> user 0m3.853s
> sys 0m1.761s
> $ time ./connectivity_check.sh https://google.com
> 100 wget -qO- --timeout=1 --tries=1 https://google.com
> 100 curl -s --connect-timeout 1 https://google.com
> real 0m36.328s
> user 0m4.265s
> sys 0m2.028s
> So "example.com" is clearly not a good domain to do connectivity checks.
> The "openembedded.org" domain is good but have a slow response time.
> And finally "google.com" which have all sort of speedy networking stuff is very
> I think the CONNECTIVITY_CHECK_URIS variable must be updated and not use the
> "example.com" domain anymore. Using "google.com" may be the best option. But
> eetting up a custom domain like "connectivitycheck.openembedded.org" could be
> another idea.
Had this idea long time in the past... Unfortunately, google.com is
not available in all countries worldwide (Say "Nihao" to chinese Great
> Any ideas ?
> Jean-Marie LEMETAYER
> Passionate embedded systems engineer
> Savoir-faire Linux
> Openembedded-core mailing list
> Openembedded-core at lists.openembedded.org
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