glusterd: Stop/restart/notify to daemons(svcs) during reset/set on a volume

problem : Reset/set commands were not working properly. reset command returns
success but it not sending notification to svcs if corresponding graph modified.

Fix: Whenever reset/set command issued, generate the temp graph and compare
with original graph and do the fallowing actions
1.) If both graph are identical nothing to do with svcs.
2.) If any changes in graph topology restart/stop service by calling
svc manager.
3)  If changes in options send notify signal by calling glusterd_fetchspec_notify.

Back port of:
>Change-Id: I852c4602eafed1ae6e6a02424814fe3a83e3d4c7
>BUG: 1209329
>Signed-off-by: anand <anekkunt@redhat.com>
>Reviewed-on: http://review.gluster.org/10850
>Tested-by: NetBSD Build System <jenkins@build.gluster.org>
>Tested-by: Gluster Build System <jenkins@build.gluster.com>
>Reviewed-by: Atin Mukherjee <amukherj@redhat.com>
>(cherry picked from commit 7255febab2c38cc89b71f2519a20d10f53586000)

Change-Id: I42aa757ecc6b5b307b5927d11f12d08f57ac0ae2
BUG: 1253165
Reviewed-on: http://review.gluster.org/11905
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Atin Mukherjee <amukherj@redhat.com>

2 files changed, 78 insertions, 0 deletions

diff --git a/tests/bugs/glusterd/bug-1209329_daemon-svcs-on-reset-volume.t b/tests/bugs/glusterd/bug-1209329_daemon-svcs-on-reset-volume.t
new file mode 100644
index 00000000000..aa24cf1c3f5
--- /dev/null
+++ b/tests/bugs/glusterd/bug-1209329_daemon-svcs-on-reset-volume.t
@@ -0,0 +1,69 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../volume.rc
+. $(dirname $0)/../../nfs.rc
+
+cleanup;
+
+## Start glusterd
+TEST glusterd;
+TEST pidof glusterd;
+
+## Lets create volume
+TEST $CLI volume create $V0 $H0:$B0/${V0};
+
+## Verify volume is created
+EXPECT "$V0" volinfo_field $V0 'Volume Name';
+EXPECT 'Created' volinfo_field $V0 'Status';
+
+## Start volume and verify
+TEST $CLI volume start $V0;
+EXPECT 'Started' volinfo_field $V0 'Status';
+
+##enable the bitrot and verify bitd is running or not
+TEST $CLI volume bitrot $V0 enable
+EXPECT 'on' volinfo_field $V0 'features.bitrot'
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" get_bitd_count
+
+##Do reset force which set the bitrot options to default
+TEST $CLI volume reset $V0 force;
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "0" get_bitd_count
+
+##enable the uss option and verify snapd is running or not
+TEST $CLI volume set $V0 features.uss on
+EXPECT 'on' volinfo_field $V0 'features.uss'
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" get_snapd_count
+
+##Do reset force which set the uss options to default
+TEST $CLI volume reset $V0 force;
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "0" get_snapd_count
+
+#enable nfs.disable options and verify
+TEST $CLI volume set $V0 nfs.disable on
+EXPECT 'on' volinfo_field $V0 'nfs.disable'
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "0" get_nfs_count
+
+##Do reset force which set the nfs.option to default
+TEST $CLI volume reset $V0 force;
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" get_nfs_count
+
+##enable the uss option and verify snapd is running or not
+TEST $CLI volume set $V0 features.uss on
+EXPECT 'on' volinfo_field $V0 'features.uss'
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" get_snapd_count
+
+##Disable the uss option using set command and verify snapd
+TEST $CLI volume set $V0 features.uss  off
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "0" get_snapd_count
+
+##enable nfs.disable and verify
+TEST $CLI volume set $V0 nfs.disable on
+EXPECT 'on' volinfo_field $V0 'nfs.disable'
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "0" get_nfs_count
+
+## disable nfs.disable option using set command
+TEST $CLI volume set $V0 nfs.disable  off
+EXPECT_WITHIN $PROCESS_UP_TIMEOUT "1" get_nfs_count
+
+cleanup;
diff --git a/tests/volume.rc b/tests/volume.rc
index 91cbb730501..10fa11d3b0a 100644
--- a/tests/volume.rc
+++ b/tests/volume.rc
@@ -589,3 +589,12 @@ function quota_hl_exceeded()
 
 }
 
+function get_nfs_count {
+        ps auxww | grep glusterfs | grep nfs.pid | grep -v grep | wc -l
+}
+
+function get_snapd_count {
+        ps auxww | grep glusterfs | grep snapd.pid | grep -v grep | wc -l
+}
+
+