# [PATCH v1] travis-ci: retry if Git for Windows CI returns HTTP error 502 or 503

4 messages from 2017-04-29 to 2017-05-02. Participants: Lars Schneider, Junio C Hamano.
Thread: https://gitlist.dev/t/45831

## Lars Schneider, 2017-04-29 18:48

Subject: [PATCH v1] travis-ci: retry if Git for Windows CI returns HTTP error 502 or 503
Message-ID: <20170429184822.10128-1-larsxschneider@gmail.com>
URL: https://gitlist.dev/e/20170429184822.10128-1-larsxschneider%40gmail.com

```
The Git for Windows CI web app sometimes returns HTTP errors of
"502 bad gateway" or "503 service unavailable" [1]. Wait a little and
retry the request if this happens.

[1] https://docs.microsoft.com/en-in/azure/app-service-web/app-service-web-troubleshoot-http-502-http-503

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
---

Hi,

this should make the Git for Windows build a bit more stable. We saw
a few 502's recently. E.g. https://travis-ci.org/git/git/jobs/226669324

I did not add any checks to avoid an endless loop because TravisCI would
shutdown the worker if there is no output for more than 10min. Therefore
I think we don't need to handle this case ourselves.

Cheers,
Lars

Notes:
    Base Ref: next
    Web-Diff: https://github.com/larsxschneider/git/commit/b57ebf31ab
    Checkout: git fetch https://github.com/larsxschneider/git travisci/win-retry-v1 && git checkout b57ebf31ab

 ci/run-windows-build.sh | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/ci/run-windows-build.sh b/ci/run-windows-build.sh
index e043440799..7a9aa9c6a7 100755
--- a/ci/run-windows-build.sh
+++ b/ci/run-windows-build.sh
@@ -15,6 +15,8 @@ COMMIT=$2
 gfwci () {
 	local CURL_ERROR_CODE HTTP_CODE
 	exec 3>&1
+	while test -z $HTTP_CODE
+	do
 	HTTP_CODE=$(curl \
 		-H "Authentication: Bearer $GFW_CI_TOKEN" \
 		--silent --retry 5 --write-out '%{HTTP_CODE}' \
@@ -22,6 +24,16 @@ gfwci () {
 		"https://git-for-windows-ci.azurewebsites.net/api/TestNow?$1" \
 	)
 	CURL_ERROR_CODE=$?
+		# The GfW CI web app sometimes returns HTTP errors of
+		# "502 bad gateway" or "503 service unavailable".
+		# Wait a little and retry if it happens. More info:
+		# https://docs.microsoft.com/en-in/azure/app-service-web/app-service-web-troubleshoot-http-502-http-503
+		if test $HTTP_CODE -eq 502 || test $HTTP_CODE -eq 503
+		then
+			sleep 10
+			HTTP_CODE=
+		fi
+	done
 	if test $CURL_ERROR_CODE -ne 0
 	then
 		return $CURL_ERROR_CODE

base-commit: 1ea7e62026c5dde4d8be80b2544696fc6aa70121
--
2.12.2


```

## Lars Schneider, 2017-05-01 11:32

Subject: Re: [PATCH v1] travis-ci: retry if Git for Windows CI returns HTTP error 502 or 503
Message-ID: <C434AB60-F2BB-44A1-B40D-449EA27E2314@gmail.com>
URL: https://gitlist.dev/e/C434AB60-F2BB-44A1-B40D-449EA27E2314%40gmail.com
In-Reply-To: <20170429184822.10128-1-larsxschneider@gmail.com>

```

> On 29 Apr 2017, at 20:48, Lars Schneider <larsxschneider@gmail.com> wrote:
> 
> The Git for Windows CI web app sometimes returns HTTP errors of
> "502 bad gateway" or "503 service unavailable" [1]. Wait a little and
> retry the request if this happens.
> 
> [1] https://docs.microsoft.com/en-in/azure/app-service-web/app-service-web-troubleshoot-http-502-http-503
> 
> Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
> ---
> 
> Hi,
> 
> this should make the Git for Windows build a bit more stable. We saw
> a few 502's recently. E.g. https://travis-ci.org/git/git/jobs/226669324
> 
> I did not add any checks to avoid an endless loop because TravisCI would
> shutdown the worker if there is no output for more than 10min. Therefore
> I think we don't need to handle this case ourselves.
> 
> Cheers,
> Lars
> 
> Notes:
>    Base Ref: next
>    Web-Diff: https://github.com/larsxschneider/git/commit/b57ebf31ab
>    Checkout: git fetch https://github.com/larsxschneider/git travisci/win-retry-v1 && git checkout b57ebf31ab
> 
> ci/run-windows-build.sh | 12 ++++++++++++
> 1 file changed, 12 insertions(+)
> 
> diff --git a/ci/run-windows-build.sh b/ci/run-windows-build.sh
> index e043440799..7a9aa9c6a7 100755
> --- a/ci/run-windows-build.sh
> +++ b/ci/run-windows-build.sh
> @@ -15,6 +15,8 @@ COMMIT=$2
> gfwci () {
> 	local CURL_ERROR_CODE HTTP_CODE
> 	exec 3>&1
> +	while test -z $HTTP_CODE
> +	do
> 	HTTP_CODE=$(curl \
> 		-H "Authentication: Bearer $GFW_CI_TOKEN" \
> 		--silent --retry 5 --write-out '%{HTTP_CODE}' \
> @@ -22,6 +24,16 @@ gfwci () {
> 		"https://git-for-windows-ci.azurewebsites.net/api/TestNow?$1" \
> 	)
> 	CURL_ERROR_CODE=$?
> +		# The GfW CI web app sometimes returns HTTP errors of
> +		# "502 bad gateway" or "503 service unavailable".
> +		# Wait a little and retry if it happens. More info:
> +		# https://docs.microsoft.com/en-in/azure/app-service-web/app-service-web-troubleshoot-http-502-http-503
> +		if test $HTTP_CODE -eq 502 || test $HTTP_CODE -eq 503
> +		then
> +			sleep 10
> +			HTTP_CODE=
> +		fi
> +	done

Please don't move this to next, yet. This seems not to work as expected :-(
https://travis-ci.org/git/git/jobs/227513693

- Lars
```

## Junio C Hamano, 2017-05-02 09:52

Subject: Re: [PATCH v1] travis-ci: retry if Git for Windows CI returns HTTP error 502 or 503
Message-ID: <CAPc5daUOQVu66RDspzScUjufJvLs7TUS0UtqTZjJ=5sMBuF=TQ@mail.gmail.com>
URL: https://gitlist.dev/e/CAPc5daUOQVu66RDspzScUjufJvLs7TUS0UtqTZjJ%3D5sMBuF%3DTQ%40mail.gmail.com
In-Reply-To: <C434AB60-F2BB-44A1-B40D-449EA27E2314@gmail.com>

```
On Mon, May 1, 2017 at 8:32 PM, Lars Schneider <larsxschneider@gmail.com> wrote:
>>
>> this should make the Git for Windows build a bit more stable. We saw
>> a few 502's recently. E.g. https://travis-ci.org/git/git/jobs/226669324
>>
> Please don't move this to next, yet. This seems not to work as expected :-(
> https://travis-ci.org/git/git/jobs/227513693

Sure. I am wondering if your other one to run both asciidoc & asciidoctor
tee'ed to log files should be ready to work on 'next', though.

Thanks.

```

## Lars Schneider, 2017-05-02 10:27

Subject: Re: [PATCH v1] travis-ci: retry if Git for Windows CI returns HTTP error 502 or 503
Message-ID: <7A4862C2-6414-481B-974E-7BEF85611395@gmail.com>
URL: https://gitlist.dev/e/7A4862C2-6414-481B-974E-7BEF85611395%40gmail.com
In-Reply-To: <CAPc5daUOQVu66RDspzScUjufJvLs7TUS0UtqTZjJ=5sMBuF=TQ@mail.gmail.com>

```

> On 02 May 2017, at 11:52, Junio C Hamano <gitster@pobox.com> wrote:
> 
> On Mon, May 1, 2017 at 8:32 PM, Lars Schneider <larsxschneider@gmail.com> wrote:
>>> 
>>> this should make the Git for Windows build a bit more stable. We saw
>>> a few 502's recently. E.g. https://travis-ci.org/git/git/jobs/226669324
>>> 
>> Please don't move this to next, yet. This seems not to work as expected :-(
>> https://travis-ci.org/git/git/jobs/227513693
> 
> Sure. I am wondering if your other one to run both asciidoc & asciidoctor
> tee'ed to log files should be ready to work on 'next', though.

The asciidoc changes are good to go from my point of view:
https://travis-ci.org/git/git/jobs/227822259

- Lars
```
