From 67bc3775685198b9ab10c1f2a0d957b157bb4acd Mon Sep 17 00:00:00 2001
From: Iraj Jamali <ijamali@redhat.com>
Date: Fri, 30 Nov 2018 17:23:57 +0530
Subject: afr: not resolve splitbrains when copies are of same size

Automatic Splitbrain with size as policy must
not resolve splitbrains when the copies are of same size.
Determining if the sizes of copies are same and
returning -1 in that case.

updates: bz#1655052

Change-Id: I3d8e8b4d7962b070ed16c3ee02a1e5a926fd5eab
Signed-off-by: Iraj Jamali <ijamali@redhat.com>
---
 .../bug-1655052-sbrain-policy-same-size.t          | 55 ++++++++++++++++++++++
 1 file changed, 55 insertions(+)
 create mode 100755 tests/bugs/replicate/bug-1655052-sbrain-policy-same-size.t

(limited to 'tests')

diff --git a/tests/bugs/replicate/bug-1655052-sbrain-policy-same-size.t b/tests/bugs/replicate/bug-1655052-sbrain-policy-same-size.t
new file mode 100755
index 00000000000..319736e1157
--- /dev/null
+++ b/tests/bugs/replicate/bug-1655052-sbrain-policy-same-size.t
@@ -0,0 +1,55 @@
+#!/bin/bash
+
+#Test the split-brain resolution CLI commands.
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+
+cleanup;
+
+TEST glusterd
+TEST pidof glusterd
+
+#Create replica 2 volume
+TEST $CLI volume create $V0 replica 2 $H0:$B0/${V0}{0,1}
+TEST $CLI volume set $V0 performance.write-behind off
+TEST $CLI volume set $V0 cluster.self-heal-daemon off
+TEST $CLI volume set $V0 cluster.entry-self-heal off
+TEST $CLI volume set $V0 cluster.data-self-heal off
+TEST $CLI volume set $V0 cluster.metadata-self-heal off
+TEST $CLI volume start $V0
+TEST $GFS --volfile-id=/$V0 --volfile-server=$H0 $M0
+TEST touch $M0/file
+
+############ Healing using favorite-child-policy = size and size of bricks is same #################
+TEST kill_brick $V0 $H0 $B0/${V0}1
+TEST dd if=/dev/urandom of=$M0/file bs=1024 count=1024
+TEST $CLI volume start $V0 force
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" brick_up_status $V0 $H0 $B0/${V0}1
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" afr_child_up_status $V0 1
+TEST kill_brick $V0 $H0 $B0/${V0}0
+TEST dd if=/dev/urandom of=$M0/file bs=1024 count=1024
+
+TEST $CLI volume start $V0 force
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" brick_up_status $V0 $H0 $B0/${V0}0
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" afr_child_up_status $V0 0
+TEST $CLI volume set $V0 cluster.self-heal-daemon on
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "Y" glustershd_up_status
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status_in_shd $V0 0
+EXPECT_WITHIN $CHILD_UP_TIMEOUT "1" afr_child_up_status_in_shd $V0 1
+TEST $CLI volume heal $V0
+
+#file still in split-brain
+EXPECT_WITHIN $HEAL_TIMEOUT "2" get_pending_heal_count $V0
+cat $M0/file > /dev/null
+EXPECT_NOT "^0$" echo $?
+
+#We know that both bricks have same size file
+TEST $CLI volume set $V0 cluster.favorite-child-policy size
+TEST $CLI volume heal $V0
+EXPECT_WITHIN $HEAL_TIMEOUT "2" get_pending_heal_count $V0
+cat $M0/file > /dev/null
+EXPECT_NOT "^0$" echo $?
+
+EXPECT_WITHIN $UMOUNT_TIMEOUT "Y" force_umount $M0
+cleanup
+
-- 
cgit