snapshot: Inherit snap-max-hard-limit from original volume

A snapshot should inherit snap-max-hard-limit from the original
volume while being created and when being restored to, it should
restore the same.

Similarly a clone taken from a snapshot should inherit
snap-max-hard-limit from the snapshot.

Change-Id: If8e90e2ffc10e22086b803ac8e2638a16bcec968
BUG: 1275616
Signed-off-by: Avra Sengupta <asengupt@redhat.com>
Reviewed-on: http://review.gluster.org/12437
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: mohammed rafi  kc <rkavunga@redhat.com>
Tested-by: NetBSD Build System <jenkins@build.gluster.org>
Reviewed-by: Rajesh Joseph <rjoseph@redhat.com>

2 files changed, 64 insertions, 0 deletions

diff --git a/tests/bugs/snapshot/bug-1275616.t b/tests/bugs/snapshot/bug-1275616.t
new file mode 100755
index 00000000000..fe1684ed003
--- /dev/null
+++ b/tests/bugs/snapshot/bug-1275616.t
@@ -0,0 +1,48 @@
+#!/bin/bash
+
+. $(dirname $0)/../../include.rc
+. $(dirname $0)/../../snapshot.rc
+
+cleanup;
+TEST verify_lvm_version;
+TEST glusterd;
+TEST pidof glusterd;
+
+TEST setup_lvm 1
+
+TEST $CLI volume create $V0 $H0:$L1
+TEST $CLI volume start $V0
+TEST $CLI snapshot config activate-on-create enable
+
+TEST $CLI snapshot config $V0 snap-max-hard-limit 100
+TEST $CLI snapshot create snap1 $V0 no-timestamp
+
+TEST $CLI snapshot config $V0 snap-max-hard-limit 150
+TEST $CLI snapshot create snap2 $V0 no-timestamp
+
+TEST $CLI snapshot config $V0 snap-max-hard-limit 200
+TEST $CLI snapshot create snap3 $V0 no-timestamp
+EXPECT '197' snap_info_volume CLI "Snaps Available" $V0;
+
+TEST $CLI volume stop $V0
+
+# Restore the snapshots and verify the snap-max-hard-limit
+# and the Snaps Available
+TEST $CLI snapshot restore snap1
+EXPECT '98' snap_info_volume CLI "Snaps Available" $V0;
+EXPECT '100' snap_config_volume CLI 'snap-max-hard-limit' $V0
+
+TEST $CLI snapshot restore snap2
+EXPECT '149' snap_info_volume CLI "Snaps Available" $V0;
+EXPECT '150' snap_config_volume CLI 'snap-max-hard-limit' $V0
+
+#Take a clone and verify it inherits snapshot's snap-max-hard-limit
+TEST $CLI snapshot clone clone1 snap3
+
+EXPECT '149' snap_info_volume CLI "Snaps Available" $V0;
+EXPECT '150' snap_config_volume CLI 'snap-max-hard-limit' $V0
+
+EXPECT '200' snap_info_volume CLI "Snaps Available" clone1
+EXPECT '200' snap_config_volume CLI 'snap-max-hard-limit' clone1
+
+cleanup;
diff --git a/tests/snapshot.rc b/tests/snapshot.rc
index 60e5b79ec76..34e9ebf16d8 100644
--- a/tests/snapshot.rc
+++ b/tests/snapshot.rc
@@ -431,6 +431,22 @@ function uss_count_snap_displayed() {
         ls $path/.snaps | wc -l
 }
 
+function snap_info_volume()
+{
+        eval local cli_index=\$$1
+        local var=$2
+        local vol=$3
+        $cli_index snapshot info volume $vol | grep "^$var" | sed 's/.*: //'
+}
+
+function snap_config_volume()
+{
+        eval local cli_index=\$$1
+        local var=$2
+        local vol=$3
+        $cli_index snapshot config $vol| grep "^$var" | sed 's/.*: //'
+}
+
 #return specific fields of xml output
 function get-cmd-field-xml()
 {