gluster: GlusterFS Volume Snapshot Feature

This is the initial patch for the Snapshot feature. Current patch
includes following features:
* Snapshot create
* Snapshot delete
* Snapshot restore
* Snapshot list
* Snapshot info
* Snapshot status
* Snapshot config

Change-Id: I2f46920c0d61c515f6a60e0f8b46fff886d9f6a9
BUG: 1061685
Signed-off-by: shishir gowda <sgowda@redhat.com>
Signed-off-by: Sachin Pandit <spandit@redhat.com>
Signed-off-by: Vijaikumar M <vmallika@redhat.com>
Signed-off-by: Raghavendra Bhat <raghavendra@redhat.com>
Signed-off-by: Rajesh Joseph <rjoseph@redhat.com>
Signed-off-by: Joseph Fernandes <josferna@redhat.com>
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/7128
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>

2 files changed, 113 insertions, 3 deletions

diff --git a/tests/basic/volume-locks.t b/tests/basic/mgmt_v3-locks.t
index b9e94b7e166..22ca27b9f20 100755..100644
--- a/tests/basic/volume-locks.t
+++ b/tests/basic/mgmt_v3-locks.t
@@ -27,13 +27,23 @@ function volinfo_field()
 function two_diff_vols_create {
         # Both volume creates should be successful
         $CLI_1 volume create $V0 $H1:$B1/$V0 $H2:$B2/$V0 $H3:$B3/$V0 &
-        $CLI_2 volume create $V1 $H1:$B1/$V1 $H2:$B2/$V1 $H3:$B3/$V1
+        PID_1=$!
+
+        $CLI_2 volume create $V1 $H1:$B1/$V1 $H2:$B2/$V1 $H3:$B3/$V1 &
+        PID_2=$!
+
+        wait $PID_1 $PID_2
 }
 
 function two_diff_vols_start {
         # Both volume starts should be successful
         $CLI_1 volume start $V0 &
-        $CLI_2 volume start $V1
+        PID_1=$!
+
+        $CLI_2 volume start $V1 &
+        PID_2=$!
+
+        wait $PID_1 $PID_2
 }
 
 function two_diff_vols_stop_force {
@@ -42,7 +52,12 @@ function two_diff_vols_stop_force {
         # still go ahead. Both volume stops should
         # be successful
         $CLI_1 volume stop $V0 force &
-        $CLI_2 volume stop $V1 force
+        PID_1=$!
+
+        $CLI_2 volume stop $V1 force &
+        PID_2=$!
+
+        wait $PID_1 $PID_2
 }
 
 function same_vol_remove_brick {
diff --git a/tests/basic/volume-snapshot.t b/tests/basic/volume-snapshot.t
new file mode 100755
index 00000000000..c826631cad9
--- /dev/null
+++ b/tests/basic/volume-snapshot.t
@@ -0,0 +1,95 @@
+#!/bin/bash
+
+. $(dirname $0)/../include.rc
+. $(dirname $0)/../volume.rc
+. $(dirname $0)/../cluster.rc
+. $(dirname $0)/../snapshot.rc
+
+V1="patchy2"
+
+function create_volumes() {
+        $CLI_1 volume create $V0 $H1:$L1 &
+        PID_1=$!
+
+        $CLI_2 volume create $V1 $H2:$L2 $H3:$L3 &
+        PID_2=$!
+
+        wait $PID_1 $PID_2
+}
+
+function create_snapshots() {
+        $CLI_1 snapshot create ${V0}_snap ${V0}&
+        PID_1=$!
+
+        $CLI_1 snapshot create ${V1}_snap ${V1}&
+        PID_2=$!
+
+        wait $PID_1 $PID_2
+}
+
+function delete_snapshots() {
+        $CLI_1 snapshot delete ${V0}_snap &
+        PID_1=$!
+
+        $CLI_1 snapshot delete ${V1}_snap &
+        PID_2=$!
+
+        wait $PID_1 $PID_2
+}
+
+function restore_snapshots() {
+        $CLI_1 snapshot restore ${V0}_snap &
+        PID_1=$!
+
+        $CLI_1 snapshot restore ${V1}_snap &
+        PID_2=$!
+
+        wait $PID_1 $PID_2
+}
+cleanup;
+
+#Create cluster with 3 nodes
+TEST launch_cluster 3;
+TEST setup_lvm 3
+
+TEST $CLI_1 peer probe $H2;
+TEST $CLI_1 peer probe $H3;
+EXPECT_WITHIN 20 2 peer_count;
+
+create_volumes
+EXPECT 'Created' volinfo_field $V0 'Status';
+EXPECT 'Created' volinfo_field $V1 'Status';
+
+start_volumes 2
+EXPECT 'Started' volinfo_field $V0 'Status';
+EXPECT 'Started' volinfo_field $V1 'Status';
+
+#Snapshot Operations
+create_snapshots
+TEST snapshot_exists 1 ${V0}_snap
+TEST snapshot_exists 1 ${V1}_snap
+TEST $CLI_1 snapshot config $V0 snap-max-hard-limit 100
+TEST $CLI_1 snapshot config $V1 snap-max-hard-limit 100
+
+TEST glusterfs -s $H1 --volfile-id=/snaps/${V0}_snap/${V0} $M0
+sleep 2
+TEST umount -f $M0
+TEST glusterfs -s $H2 --volfile-id=/snaps/${V1}_snap/${V1} $M0
+sleep 2
+TEST umount -f $M0
+
+#Clean up
+stop_force_volumes 2
+EXPECT 'Stopped' volinfo_field $V0 'Status';
+EXPECT 'Stopped' volinfo_field $V1 'Status';
+
+restore_snapshots
+TEST ! snapshot_exists 1 ${V0}_snap
+TEST ! snapshot_exists 1 ${V1}_snap
+
+delete_volumes 2
+TEST ! volume_exists $V0
+TEST ! volume_exists $V1
+
+cleanup;
+