On Mon, May 20, 2019 at 04:29:38PM +0300, Ilya Maximets wrote: > Sometimes it takes to long for CDN to reply in case of downloading > of not frequently used kernels. > For example, even on my local PC it fails to download linux-4.19.29 > at the first try: > > $ wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.19.29.tar.xz > Resolving cdn.kernel.org (cdn.kernel.org)... 151.101.1.176 > Connecting to cdn.kernel.org |151.101.1.176|:443... connected. > HTTP request sent, awaiting response... 503 first byte timeout > > Example from TravisCI: > https://travis-ci.org/openvswitch/ovs/jobs/530247589 > > It seems that CDN downloads the tar for that time to the nearby > server and instant retry usually succeeds immediately. > > 503 is not a "fatal error" for wget and, unfortunately, wget on > TravisCI is too old and we can't just use "--retry-on-http-error=503" > to avoid failures in this case. So, let's just retry unconditionally. > Fallback to the direct download if CDN fails twice. > > Fixes: ae6e4f12fcab ("travis: Speed up linux kernel downloads.") > Signed-off-by: Ilya Maximets <[email protected]> > --- > .travis/linux-build.sh | 6 +++++- > 1 file changed, 5 insertions(+), 1 deletion(-) > > diff --git a/.travis/linux-build.sh b/.travis/linux-build.sh > index d869713f7..c8c9748ac 100755 > --- a/.travis/linux-build.sh > +++ b/.travis/linux-build.sh > @@ -19,7 +19,11 @@ function install_kernel() > PREFIX="v2.6/longterm/v2.6.32" > fi > > - wget https://cdn.kernel.org/pub/linux/kernel/${PREFIX}/linux-${1}.tar.xz > + cdn="https://cdn."; > + direct="https://www."; > + link="kernel.org/pub/linux/kernel/${PREFIX}/linux-${1}.tar.xz" > + # Download kernel sources. Try direct link on CDN failure. > + wget ${cdn}${link} || wget ${cdn}${link} || wget ${direct}${link} > tar xvf linux-${1}.tar.xz > /dev/null > cd linux-${1} > make allmodconfig
Acked-by: Ben Pfaff <[email protected]> Since this is a bash-only script, the bash hacker in me wants to write it something like: url=https://cdn.kernel.org/pub/linux/kernel/${PREFIX}/linux-${1}.tar.xz wget $url || wget $url || wget ${url/cdn/www} Maybe that is too clever though. _______________________________________________ dev mailing list [email protected] https://mail.openvswitch.org/mailman/listinfo/ovs-dev
