# [PATCH] git-p4: Fix ocasional test failures in kill_p4d

2 messages from 2015-04-29 to 2015-04-29. Participants: Luke Diamand.
Thread: https://gitlist.dev/t/39188

## Luke Diamand, 2015-04-29 21:26

Subject: [PATCH] git-p4: Fix ocasional test failures in kill_p4d
Message-ID: <1430342769-20521-1-git-send-email-luke@diamand.org>
URL: https://gitlist.dev/e/1430342769-20521-1-git-send-email-luke%40diamand.org

```
Running the git-p4 unit tests, I notice that the 'kill_p4d' test
occasionally fails. This just terminates the p4d server, so in
theory it should always succeed. The problem is especially
noticeable when running multiple tests in parallel:

    $ make -C t T=t98*.sh -j50

That's annoying, as it makes it harder to test changes to git-p4.

It looks like p4d is sensitive to being killed ungracefully.
Experimentally, I find that starting it with journalling disabled,
and using 'p4 admin stop' rather than kill(1) makes the process much
more reliable; I no longer see the intermittent failures.


Luke Diamand (1):
  git-p4: fix occasional test failure in kill_p4d

 t/lib-git-p4.sh | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

-- 
2.3.4.48.g223ab37

```

## Luke Diamand, 2015-04-29 21:26

Subject: [PATCH] git-p4: fix occasional test failure in kill_p4d
Message-ID: <1430342769-20521-2-git-send-email-luke@diamand.org>
URL: https://gitlist.dev/e/1430342769-20521-2-git-send-email-luke%40diamand.org
In-Reply-To: <1430342769-20521-1-git-send-email-luke@diamand.org>

```
The kill_p4d test function used in the test harness fails
occasionally, especially if running many of the git-p4 tests
in parallel.

It looks like p4d is sensitive to being shutdown ungracefully,
so to work around this, use 'p4 admin stop' rather than kill,
and start p4d with journalling turned off. This seems to be much
more reliable.

Signed-off-by: Luke Diamand <luke@diamand.org>
---
 t/lib-git-p4.sh | 15 ++++++++-------
 1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/t/lib-git-p4.sh b/t/lib-git-p4.sh
index 5aa8adc..3885381 100644
--- a/t/lib-git-p4.sh
+++ b/t/lib-git-p4.sh
@@ -69,7 +69,8 @@ start_p4d() {
 	(
 		cd "$db" &&
 		{
-			p4d -q -p $P4DPORT &
+			# disable journalling: it makes shutdown unreliable
+			p4d -J off -q -p $P4DPORT &
 			echo $! >"$pidfile"
 		}
 	) &&
@@ -122,15 +123,15 @@ p4_add_user() {
 }
 
 kill_p4d() {
-	pid=$(cat "$pidfile")
-	# it had better exist for the first kill
-	kill $pid &&
-	for i in 1 2 3 4 5 ; do
-		kill $pid >/dev/null 2>&1 || break
+	# graceful shutdown
+	p4 admin stop &&
+	for i in 1 2 3 4 5
+	do
+		p4 info >/dev/null 2>&1 || break
 		sleep 1
 	done &&
 	# complain if it would not die
-	test_must_fail kill $pid >/dev/null 2>&1 &&
+	test_must_fail p4 info 2>&1 >/dev/null &&
 	rm -rf "$db" "$cli" "$pidfile"
 }
 
-- 
2.3.4.48.g223ab37

```