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>

1 files changed, 64 insertions, 32 deletions

diff --git a/xlators/mgmt/glusterd/src/glusterd-store.h b/xlators/mgmt/glusterd/src/glusterd-store.h
index 955abb09f08..64c073a8a39 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.h
+++ b/xlators/mgmt/glusterd/src/glusterd-store.h
@@ -35,43 +35,56 @@ typedef enum glusterd_store_ver_ac_{
 } glusterd_volinfo_ver_ac_t;
 
 
-#define GLUSTERD_STORE_UUID_KEY           "UUID"
-
-#define GLUSTERD_STORE_KEY_VOL_TYPE       "type"
-#define GLUSTERD_STORE_KEY_VOL_COUNT      "count"
-#define GLUSTERD_STORE_KEY_VOL_STATUS     "status"
-#define GLUSTERD_STORE_KEY_VOL_PORT       "port"
-#define GLUSTERD_STORE_KEY_VOL_SUB_COUNT  "sub_count"
-#define GLUSTERD_STORE_KEY_VOL_STRIPE_CNT  "stripe_count"
-#define GLUSTERD_STORE_KEY_VOL_REPLICA_CNT "replica_count"
-#define GLUSTERD_STORE_KEY_VOL_BRICK      "brick"
-#define GLUSTERD_STORE_KEY_VOL_VERSION    "version"
-#define GLUSTERD_STORE_KEY_VOL_TRANSPORT  "transport-type"
-#define GLUSTERD_STORE_KEY_VOL_ID         "volume-id"
-#define GLUSTERD_STORE_KEY_RB_STATUS      "rb_status"
-#define GLUSTERD_STORE_KEY_RB_SRC_BRICK   "rb_src"
-#define GLUSTERD_STORE_KEY_RB_DST_BRICK   "rb_dst"
-#define GLUSTERD_STORE_KEY_RB_DST_PORT    "rb_port"
-#define GLUSTERD_STORE_KEY_VOL_DEFRAG     "rebalance_status"
-#define GLUSTERD_STORE_KEY_DEFRAG_OP      "rebalance_op"
-#define GLUSTERD_STORE_KEY_USERNAME       "username"
-#define GLUSTERD_STORE_KEY_PASSWORD       "password"
-#define GLUSTERD_STORE_KEY_VOL_OP_VERSION "op-version"
+#define GLUSTERD_STORE_UUID_KEY                 "UUID"
+
+#define GLUSTERD_STORE_KEY_VOL_TYPE             "type"
+#define GLUSTERD_STORE_KEY_VOL_COUNT            "count"
+#define GLUSTERD_STORE_KEY_VOL_STATUS           "status"
+#define GLUSTERD_STORE_KEY_VOL_PORT             "port"
+#define GLUSTERD_STORE_KEY_VOL_SUB_COUNT        "sub_count"
+#define GLUSTERD_STORE_KEY_VOL_STRIPE_CNT       "stripe_count"
+#define GLUSTERD_STORE_KEY_VOL_REPLICA_CNT      "replica_count"
+#define GLUSTERD_STORE_KEY_VOL_BRICK            "brick"
+#define GLUSTERD_STORE_KEY_VOL_VERSION          "version"
+#define GLUSTERD_STORE_KEY_VOL_TRANSPORT        "transport-type"
+#define GLUSTERD_STORE_KEY_VOL_ID               "volume-id"
+#define GLUSTERD_STORE_KEY_VOL_IS_RESTORED      "is-volume-restored"
+#define GLUSTERD_STORE_KEY_RB_STATUS            "rb_status"
+#define GLUSTERD_STORE_KEY_RB_SRC_BRICK         "rb_src"
+#define GLUSTERD_STORE_KEY_RB_DST_BRICK         "rb_dst"
+#define GLUSTERD_STORE_KEY_RB_DST_PORT          "rb_port"
+#define GLUSTERD_STORE_KEY_VOL_DEFRAG           "rebalance_status"
+#define GLUSTERD_STORE_KEY_DEFRAG_OP            "rebalance_op"
+#define GLUSTERD_STORE_KEY_USERNAME             "username"
+#define GLUSTERD_STORE_KEY_PASSWORD             "password"
+#define GLUSTERD_STORE_KEY_PARENT_VOLNAME       "parent_volname"
+#define GLUSTERD_STORE_KEY_VOL_OP_VERSION       "op-version"
 #define GLUSTERD_STORE_KEY_VOL_CLIENT_OP_VERSION "client-op-version"
 
-#define GLUSTERD_STORE_KEY_BRICK_HOSTNAME "hostname"
-#define GLUSTERD_STORE_KEY_BRICK_PATH     "path"
-#define GLUSTERD_STORE_KEY_BRICK_PORT     "listen-port"
-#define GLUSTERD_STORE_KEY_BRICK_RDMA_PORT "rdma.listen-port"
+#define GLUSTERD_STORE_KEY_SNAP_NAME            "name"
+#define GLUSTERD_STORE_KEY_SNAP_ID              "snap-id"
+#define GLUSTERD_STORE_KEY_SNAP_DESC            "desc"
+#define GLUSTERD_STORE_KEY_SNAP_TIMESTAMP       "time-stamp"
+#define GLUSTERD_STORE_KEY_SNAP_STATUS          "status"
+#define GLUSTERD_STORE_KEY_SNAP_RESTORED        "snap-restored"
+#define GLUSTERD_STORE_KEY_SNAP_MAX_HARD_LIMIT  "snap-max-hard-limit"
+#define GLUSTERD_STORE_KEY_SNAP_MAX_SOFT_LIMIT  "snap-max-soft-limit"
+
+#define GLUSTERD_STORE_KEY_BRICK_HOSTNAME       "hostname"
+#define GLUSTERD_STORE_KEY_BRICK_PATH           "path"
+#define GLUSTERD_STORE_KEY_BRICK_PORT           "listen-port"
+#define GLUSTERD_STORE_KEY_BRICK_RDMA_PORT      "rdma.listen-port"
 #define GLUSTERD_STORE_KEY_BRICK_DECOMMISSIONED "decommissioned"
-#define GLUSTERD_STORE_KEY_BRICK_VGNAME "vg"
-#define GLUSTERD_STORE_KEY_BRICK_ID "brick-id"
+#define GLUSTERD_STORE_KEY_BRICK_VGNAME         "vg"
+#define GLUSTERD_STORE_KEY_BRICK_DEVICE_PATH    "device_path"
+#define GLUSTERD_STORE_KEY_BRICK_SNAP_STATUS    "snap-status"
+#define GLUSTERD_STORE_KEY_BRICK_ID             "brick-id"
 
-#define GLUSTERD_STORE_KEY_PEER_UUID      "uuid"
-#define GLUSTERD_STORE_KEY_PEER_HOSTNAME  "hostname"
-#define GLUSTERD_STORE_KEY_PEER_STATE     "state"
+#define GLUSTERD_STORE_KEY_PEER_UUID            "uuid"
+#define GLUSTERD_STORE_KEY_PEER_HOSTNAME        "hostname"
+#define GLUSTERD_STORE_KEY_PEER_STATE           "state"
 
-#define GLUSTERD_STORE_KEY_VOL_CAPS       "caps"
+#define GLUSTERD_STORE_KEY_VOL_CAPS             "caps"
 
 #define glusterd_for_each_entry(entry, dir) \
         do {\
@@ -94,6 +107,9 @@ int32_t
 glusterd_store_delete_volume (glusterd_volinfo_t *volinfo);
 
 int32_t
+glusterd_store_delete_snap (glusterd_snap_t *snap);
+
+int32_t
 glusterd_retrieve_uuid ();
 
 int32_t
@@ -128,8 +144,17 @@ int32_t
 glusterd_store_retrieve_options (xlator_t *this);
 
 int32_t
+glusterd_store_retrieve_bricks (glusterd_volinfo_t *volinfo);
+
+int32_t
 glusterd_store_options (xlator_t *this, dict_t *opts);
 
+void
+glusterd_replace_slash_with_hyphen (char *str);
+
+int32_t
+glusterd_store_perform_volume_store (glusterd_volinfo_t *volinfo);
+
 int32_t
 glusterd_store_create_quota_conf_sh_on_absence (glusterd_volinfo_t *volinfo);
 
@@ -139,4 +164,11 @@ glusterd_store_retrieve_quota_version (glusterd_volinfo_t *volinfo);
 int
 glusterd_store_save_quota_version_and_cksum (glusterd_volinfo_t *volinfo);
 
+int32_t
+glusterd_store_snap (glusterd_snap_t *snap);
+
+int32_t
+glusterd_store_update_missed_snaps (dict_t *dict,
+                                    int32_t missed_snap_count);
+
 #endif