replicate: don't clear changelog for un-healed replicas

Change-Id: Iebfa6770a688e89c051666b46977862188061738
BUG: 802417
Signed-off-by: Jeff Darcy <jdarcy@redhat.com>
Reviewed-on: http://review.gluster.org/4034
Reviewed-by: Pranith Kumar Karampuri <pkarampu@redhat.com>
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Anand Avati <avati@redhat.com>

1 files changed, 98 insertions, 0 deletions

diff --git a/tests/bugs/bug-802417.t b/tests/bugs/bug-802417.t
new file mode 100755
index 00000000000..c69af1d47c3
--- /dev/null
+++ b/tests/bugs/bug-802417.t
@@ -0,0 +1,98 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../volume.rc
+
+function write_file()
+{
+	path="$1"; shift
+	echo "$*" > "$path"
+}
+
+function check_xattrs()
+{
+	result=""
+
+	for observer in 0 1 2; do
+		obs_path=${B0}/${V0}-$observer/a_file
+		for target in 0 1 2; do
+			tgt_xattr="trusted.afr.${V0}-client-$target"
+			actual=$(afr_get_changelog_xattr $obs_path $tgt_xattr)
+			if [ $observer -ne 2 -a $target -eq 2 ]; then
+				expected=0x000000020000000000000000
+			else 
+				expected=0x000000000000000000000000
+			fi
+			if [ "$actual" = "$expected" ]; then
+				result="${result}y"
+			else
+				result="${result}n"
+			fi
+		done
+	done
+
+	echo $result
+}
+	
+TEST glusterd
+TEST pidof glusterd
+TEST $CLI volume info;
+
+## Start and create a volume
+mkdir -p ${B0}/${V0}-0
+mkdir -p ${B0}/${V0}-1
+mkdir -p ${B0}/${V0}-2
+TEST $CLI volume create $V0 replica 3 $H0:$B0/${V0}-{0,1,2}
+
+## Verify volume is created
+EXPECT "$V0" volinfo_field $V0 'Volume Name';
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+## Make sure io-cache and write-behind don't interfere.
+TEST $CLI volume set $V0 performance.io-cache off;
+TEST $CLI volume set $V0 performance.write-behind off;
+TEST $CLI volume set $V0 performance.stat-prefetch off
+
+## Make sure automatic self-heal doesn't perturb our results.
+TEST $CLI volume set $V0 cluster.self-heal-daemon off
+TEST $CLI volume set $V0 cluster.data-self-heal on
+TEST $CLI volume set $V0 cluster.background-self-heal-count 0
+
+## Start volume and verify
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+## Mount native
+TEST glusterfs --volfile-server=$H0 --volfile-id=$V0 $M0
+
+## Create a file with some recognizably stale data.
+TEST write_file $M0/a_file "old_data"
+
+## Kill two of the bricks and write some newer data.
+TEST kill_brick ${V0} ${H0} ${B0}/${V0}-1
+TEST kill_brick ${V0} ${H0} ${B0}/${V0}-2
+TEST write_file $M0/a_file "new_data"
+
+## Bring all the bricks up and kill one so we do a partial self-heal.
+TEST $CLI volume start $V0 force
+EXPECT_WITHIN 20 "1" afr_child_up_status $V0 0
+EXPECT_WITHIN 20 "1" afr_child_up_status $V0 1
+EXPECT_WITHIN 20 "1" afr_child_up_status $V0 2
+TEST kill_brick ${V0} ${H0} ${B0}/${V0}-2
+TEST ls -l ${M0}/a_file
+
+EXPECT "yyyyyyyyy" check_xattrs
+
+if [ "$EXIT_EARLY" = "1" ]; then
+	exit 0;
+fi
+
+## Finish up
+TEST umount $M0;
+TEST $CLI volume stop $V0;
+EXPECT 'Stopped' volinfo_field $V0 'Status';
+
+TEST $CLI volume delete $V0;
+TEST ! $CLI volume info $V0;
+
+cleanup;