[ovs-dev] [PATCH] travis: Fix kernel download retry.
David Marchand
david.marchand at redhat.com
Thu Mar 19 07:32:40 UTC 2020
wget stops retrying to download a file when hitting fatal http errors
like 503.
But if a previous try had resulted in a partially downloaded ${file}, the
next wget call tries to download to ${file}.1.
Example:
+wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.16.18.tar.xz
--2020-03-18 20:51:42-- https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.16.18.tar.xz
Resolving cdn.kernel.org (cdn.kernel.org)... 151.101.1.176, 151.101.65.176, 151.101.129.176, ...
Connecting to cdn.kernel.org (cdn.kernel.org)|151.101.1.176|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 103076276 (98M) [application/x-xz]
Saving to: ‘linux-4.16.18.tar.xz’
linux-4.16.18.tar.x 0%[ ] 13.07K --.-KB/s in 0s
2020-03-18 20:54:44 (133 MB/s) - Read error at byte 13383/103076276 (Connection reset by peer). Retrying.
--2020-03-18 20:54:45-- (try: 2) https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.16.18.tar.xz
Connecting to cdn.kernel.org (cdn.kernel.org)|151.101.1.176|:443... connected.
HTTP request sent, awaiting response... 503 first byte timeout
2020-03-18 20:55:46 ERROR 503: first byte timeout.
+wget https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.16.18.tar.xz
--2020-03-18 20:55:46-- https://cdn.kernel.org/pub/linux/kernel/v4.x/linux-4.16.18.tar.xz
Resolving cdn.kernel.org (cdn.kernel.org)... 151.101.1.176, 151.101.65.176, 151.101.129.176, ...
Connecting to cdn.kernel.org (cdn.kernel.org)|151.101.1.176|:443... connected.
HTTP request sent, awaiting response... 200 OK
Length: 103076276 (98M) [application/x-xz]
Saving to: ‘linux-4.16.18.tar.xz.1’
linux-4.16.18.tar.x 100%[===================>] 98.30M 186MB/s in 0.5s
2020-03-18 20:55:56 (186 MB/s) - ‘linux-4.16.18.tar.xz.1’ saved [103076276/103076276]
Fixes: 048674b45f4b ("travis: Retry kernel download on 503 first byte timeout.")
Signed-off-by: David Marchand <david.marchand at redhat.com>
---
.travis/linux-build.sh | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/.travis/linux-build.sh b/.travis/linux-build.sh
index 359f7773ba..74e1028573 100755
--- a/.travis/linux-build.sh
+++ b/.travis/linux-build.sh
@@ -35,7 +35,9 @@ function install_kernel()
url="${base_url}/linux-${version}.tar.xz"
# Download kernel sources. Try direct link on CDN failure.
- wget ${url} || wget ${url} || wget ${url/cdn/www}
+ wget ${url} ||
+ (rm -f linux-${version}.tar.xz && wget ${url}) ||
+ (rm -f linux-${version}.tar.xz && wget ${url/cdn/www})
tar xvf linux-${version}.tar.xz > /dev/null
pushd linux-${version}
--
2.23.0
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