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Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-snapshot.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-snapshot.c284
1 files changed, 175 insertions, 109 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-snapshot.c b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
index b294d1b..b99f2ac 100644
--- a/xlators/mgmt/glusterd/src/glusterd-snapshot.c
+++ b/xlators/mgmt/glusterd/src/glusterd-snapshot.c
@@ -52,10 +52,66 @@
char snap_mount_folder[PATH_MAX];
+/* Look for disconnected peers, for missed snap creates or deletes */
static int32_t
glusterd_find_missed_snap (dict_t *rsp_dict, glusterd_volinfo_t *vol,
- char *snap_uuid, struct list_head *peers,
- int32_t op);
+ struct list_head *peers, int32_t op)
+{
+ int32_t brick_count = -1;
+ int32_t ret = -1;
+ xlator_t *this = NULL;
+ glusterd_peerinfo_t *peerinfo = NULL;
+ glusterd_brickinfo_t *brickinfo = NULL;
+
+ this = THIS;
+ GF_ASSERT (this);
+ GF_ASSERT (rsp_dict);
+ GF_ASSERT (peers);
+ GF_ASSERT (vol);
+
+ brick_count = 0;
+ list_for_each_entry (brickinfo, &vol->bricks, brick_list) {
+ if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
+ /* If the brick belongs to the same node */
+ brick_count++;
+ continue;
+ }
+
+ list_for_each_entry (peerinfo, peers, uuid_list) {
+ if (uuid_compare (peerinfo->uuid, brickinfo->uuid)) {
+ /* If the brick doesnt belong to this peer */
+ continue;
+ }
+
+ /* Found peer who owns the brick, *
+ * if peer is not connected or not *
+ * friend add it to missed snap list */
+ if (!(peerinfo->connected) ||
+ (peerinfo->state.state !=
+ GD_FRIEND_STATE_BEFRIENDED)) {
+ ret = glusterd_add_missed_snaps_to_dict
+ (rsp_dict,
+ vol, brickinfo,
+ brick_count + 1,
+ op);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add missed snapshot "
+ "info for %s:%s in the "
+ "rsp_dict", brickinfo->hostname,
+ brickinfo->path);
+ goto out;
+ }
+ }
+ }
+ brick_count++;
+ }
+
+ ret = 0;
+out:
+ gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
+ return ret;
+}
/* This function will restore a snapshot volumes
*
@@ -105,6 +161,7 @@ glusterd_snapshot_restore (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
goto out;
}
+
/* TODO : As of now there is only volume in snapshot.
* Change this when multiple volume snapshot is introduced
*/
@@ -122,7 +179,6 @@ glusterd_snapshot_restore (dict_t *dict, char **op_errstr, dict_t *rsp_dict)
/* From origin glusterd check if *
* any peers with snap bricks is down */
ret = glusterd_find_missed_snap (rsp_dict, snap_volinfo,
- snap_volinfo->volname,
&priv->peers,
GF_SNAP_OPTION_TYPE_RESTORE);
if (ret) {
@@ -1060,7 +1116,7 @@ glusterd_lvm_snapshot_remove (dict_t *rsp_dict, glusterd_volinfo_t *snap_vol)
/* Adding missed delete to the dict */
ret = glusterd_add_missed_snaps_to_dict
(rsp_dict,
- snap_vol->volname,
+ snap_vol,
brickinfo,
brick_count + 1,
GF_SNAP_OPTION_TYPE_DELETE);
@@ -2556,11 +2612,12 @@ out:
/* Added missed_snap_entry to rsp_dict */
int32_t
-glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
+glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict,
+ glusterd_volinfo_t *snap_vol,
glusterd_brickinfo_t *brickinfo,
int32_t brick_number, int32_t op)
{
- char *buf = NULL;
+ char *snap_uuid = NULL;
char missed_snap_entry[PATH_MAX] = "";
char name_buf[PATH_MAX] = "";
int32_t missed_snap_count = -1;
@@ -2570,20 +2627,20 @@ glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
this = THIS;
GF_ASSERT (this);
GF_ASSERT (rsp_dict);
- GF_ASSERT (snap_uuid);
+ GF_ASSERT (snap_vol);
GF_ASSERT (brickinfo);
- snprintf (missed_snap_entry, sizeof(missed_snap_entry),
- "%s:%s=%d:%s:%d:%d", uuid_utoa(brickinfo->uuid),
- snap_uuid, brick_number, brickinfo->path, op,
- GD_MISSED_SNAP_PENDING);
-
- buf = gf_strdup (missed_snap_entry);
- if (!buf) {
+ snap_uuid = gf_strdup (uuid_utoa (snap_vol->snapshot->snap_id));
+ if (!snap_uuid) {
ret = -1;
goto out;
}
+ snprintf (missed_snap_entry, sizeof(missed_snap_entry),
+ "%s:%s=%s:%d:%s:%d:%d", uuid_utoa(brickinfo->uuid),
+ snap_uuid, snap_vol->volname, brick_number, brickinfo->path,
+ op, GD_MISSED_SNAP_PENDING);
+
/* Fetch the missed_snap_count from the dict */
ret = dict_get_int32 (rsp_dict, "missed_snap_count",
&missed_snap_count);
@@ -2595,12 +2652,12 @@ glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
/* Setting the missed_snap_entry in the rsp_dict */
snprintf (name_buf, sizeof(name_buf), "missed_snaps_%d",
missed_snap_count);
- ret = dict_set_dynstr (rsp_dict, name_buf, buf);
+ ret = dict_set_dynstr_with_alloc (rsp_dict, name_buf,
+ missed_snap_entry);
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to set missed_snap_entry (%s) "
- "in the rsp_dict.", buf);
- GF_FREE (buf);
+ "in the rsp_dict.", missed_snap_entry);
goto out;
}
missed_snap_count++;
@@ -2616,6 +2673,9 @@ glusterd_add_missed_snaps_to_dict (dict_t *rsp_dict, char *snap_uuid,
}
out:
+ if (snap_uuid)
+ GF_FREE (snap_uuid);
+
gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
return ret;
}
@@ -2948,7 +3008,7 @@ glusterd_add_bricks_to_snap_volume (dict_t *dict, dict_t *rsp_dict,
if (add_missed_snap) {
ret = glusterd_add_missed_snaps_to_dict (rsp_dict,
- snap_vol->volname,
+ snap_vol,
original_brickinfo,
brick_count + 1,
GF_SNAP_OPTION_TYPE_CREATE);
@@ -3048,70 +3108,6 @@ out:
return ret;
}
-/* Look for disconnected peers, for missed snap creates or deletes */
-static int32_t
-glusterd_find_missed_snap (dict_t *rsp_dict, glusterd_volinfo_t *vol,
- char *snap_uuid, struct list_head *peers,
- int32_t op)
-{
- int32_t brick_count = -1;
- int32_t ret = -1;
- xlator_t *this = NULL;
- glusterd_peerinfo_t *peerinfo = NULL;
- glusterd_brickinfo_t *brickinfo = NULL;
-
- this = THIS;
- GF_ASSERT (this);
- GF_ASSERT (rsp_dict);
- GF_ASSERT (peers);
- GF_ASSERT (vol);
- GF_ASSERT (snap_uuid);
-
- brick_count = 0;
- list_for_each_entry (brickinfo, &vol->bricks, brick_list) {
- if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
- /* If the brick belongs to the same node */
- brick_count++;
- continue;
- }
-
- list_for_each_entry (peerinfo, peers, uuid_list) {
- if (uuid_compare (peerinfo->uuid, brickinfo->uuid)) {
- /* If the brick doesnt belong to this peer */
- continue;
- }
-
- /* Found peer who owns the brick, *
- * if peer is not connected or not *
- * friend add it to missed snap list */
- if (!(peerinfo->connected) ||
- (peerinfo->state.state !=
- GD_FRIEND_STATE_BEFRIENDED)) {
- ret = glusterd_add_missed_snaps_to_dict
- (rsp_dict,
- snap_uuid,
- brickinfo,
- brick_count + 1,
- op);
- if (ret) {
- gf_log (this->name, GF_LOG_ERROR,
- "Failed to add missed snapshot "
- "info for %s:%s in the "
- "rsp_dict", brickinfo->hostname,
- brickinfo->path);
- goto out;
- }
- }
- }
- brick_count++;
- }
-
- ret = 0;
-out:
- gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
- return ret;
-}
-
glusterd_volinfo_t *
glusterd_do_snap_vol (glusterd_volinfo_t *origin_vol, glusterd_snap_t *snap,
dict_t *dict, dict_t *rsp_dict, int64_t volcount)
@@ -3592,7 +3588,6 @@ glusterd_snapshot_remove_commit (dict_t *dict, char **op_errstr,
/* From origin glusterd check if *
* any peers with snap bricks is down */
ret = glusterd_find_missed_snap (rsp_dict, snap_volinfo,
- snap_volinfo->volname,
&priv->peers,
GF_SNAP_OPTION_TYPE_DELETE);
if (ret) {
@@ -3707,7 +3702,14 @@ glusterd_snapshot_update_snaps_post_validate (dict_t *dict, char **op_errstr,
goto out;
}
- ret = glusterd_store_update_missed_snaps (dict, missed_snap_count);
+ ret = glusterd_add_missed_snaps_to_list (dict, missed_snap_count);
+ if (ret) {
+ gf_log (this->name, GF_LOG_ERROR,
+ "Failed to add missed snaps to list");
+ goto out;
+ }
+
+ ret = glusterd_store_update_missed_snaps ();
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to update missed_snaps_list");
@@ -5330,6 +5332,30 @@ glusterd_free_snap_op (glusterd_snap_op_t *snap_op)
}
}
+static inline void
+glusterd_free_missed_snapinfo (glusterd_missed_snap_info *missed_snapinfo)
+{
+ glusterd_snap_op_t *snap_opinfo = NULL;
+ glusterd_snap_op_t *tmp = NULL;
+
+ if (missed_snapinfo) {
+ list_for_each_entry_safe (snap_opinfo, tmp,
+ &missed_snapinfo->snap_ops,
+ snap_ops_list) {
+ glusterd_free_snap_op (snap_opinfo);
+ snap_opinfo = NULL;
+ }
+
+ if (missed_snapinfo->node_uuid)
+ GF_FREE (missed_snapinfo->node_uuid);
+
+ if (missed_snapinfo->snap_uuid)
+ GF_FREE (missed_snapinfo->snap_uuid);
+
+ GF_FREE (missed_snapinfo);
+ }
+}
+
/* Look for duplicates and accordingly update the list */
int32_t
glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
@@ -5347,6 +5373,13 @@ glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
list_for_each_entry (snap_opinfo, &missed_snapinfo->snap_ops,
snap_ops_list) {
+ /* If the entry is not for the same snap_vol_id
+ * then continue
+ */
+ if (strcmp (snap_opinfo->snap_vol_id,
+ missed_snap_op->snap_vol_id))
+ continue;
+
if ((!strcmp (snap_opinfo->brick_path,
missed_snap_op->brick_path)) &&
(snap_opinfo->op == missed_snap_op->op)) {
@@ -5358,8 +5391,10 @@ glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
snap_opinfo->status = GD_MISSED_SNAP_DONE;
gf_log (this->name, GF_LOG_INFO,
"Updating missed snap status "
- "for %s:%d:%s:%d as DONE",
- missed_snapinfo->node_snap_info,
+ "for %s:%s=%s:%d:%s:%d as DONE",
+ missed_snapinfo->node_uuid,
+ missed_snapinfo->snap_uuid,
+ snap_opinfo->snap_vol_id,
snap_opinfo->brick_num,
snap_opinfo->brick_path,
snap_opinfo->op);
@@ -5372,15 +5407,19 @@ glusterd_update_missed_snap_entry (glusterd_missed_snap_info *missed_snapinfo,
} else if ((snap_opinfo->brick_num ==
missed_snap_op->brick_num) &&
(snap_opinfo->op == GF_SNAP_OPTION_TYPE_CREATE) &&
- (missed_snap_op->op ==
- GF_SNAP_OPTION_TYPE_DELETE)) {
+ ((missed_snap_op->op ==
+ GF_SNAP_OPTION_TYPE_DELETE) ||
+ (missed_snap_op->op ==
+ GF_SNAP_OPTION_TYPE_RESTORE))) {
/* Optimizing create and delete entries for the same
* brick and same node
*/
gf_log (this->name, GF_LOG_INFO,
"Updating missed snap status "
- "for %s:%d:%s:%d as DONE",
- missed_snapinfo->node_snap_info,
+ "for %s:%s=%s:%d:%s:%d as DONE",
+ missed_snapinfo->node_uuid,
+ missed_snapinfo->snap_uuid,
+ snap_opinfo->snap_vol_id,
snap_opinfo->brick_num,
snap_opinfo->brick_path,
snap_opinfo->op);
@@ -5408,10 +5447,13 @@ out:
/* Add new missed snap entry to the missed_snaps list. */
int32_t
-glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
- char *brick_path, int32_t snap_op,
- int32_t snap_status)
+glusterd_add_new_entry_to_list (char *missed_info, char *snap_vol_id,
+ int32_t brick_num, char *brick_path,
+ int32_t snap_op, int32_t snap_status)
{
+ char *buf = NULL;
+ char *save_ptr = NULL;
+ char node_snap_info[PATH_MAX] = "";
int32_t ret = -1;
glusterd_missed_snap_info *missed_snapinfo = NULL;
glusterd_snap_op_t *missed_snap_op = NULL;
@@ -5423,6 +5465,7 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
this = THIS;
GF_ASSERT(this);
GF_ASSERT(missed_info);
+ GF_ASSERT(snap_vol_id);
GF_ASSERT(brick_path);
priv = this->private;
@@ -5438,6 +5481,11 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
goto out;
}
+ missed_snap_op->snap_vol_id = gf_strdup(snap_vol_id);
+ if (!missed_snap_op->snap_vol_id) {
+ ret = -1;
+ goto out;
+ }
missed_snap_op->brick_path = gf_strdup(brick_path);
if (!missed_snap_op->brick_path) {
ret = -1;
@@ -5450,8 +5498,10 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
/* Look for other entries for the same node and same snap */
list_for_each_entry (missed_snapinfo, &priv->missed_snaps_list,
missed_snaps) {
- if (!strcmp (missed_snapinfo->node_snap_info,
- missed_info)) {
+ snprintf (node_snap_info, sizeof(node_snap_info),
+ "%s:%s", missed_snapinfo->node_uuid,
+ missed_snapinfo->snap_uuid);
+ if (!strcmp (node_snap_info, missed_info)) {
/* Found missed snapshot info for *
* the same node and same snap */
match = _gf_true;
@@ -5468,8 +5518,24 @@ glusterd_store_missed_snaps_list (char *missed_info, int32_t brick_num,
goto out;
}
free_missed_snap_info = _gf_true;
- missed_snapinfo->node_snap_info = gf_strdup(missed_info);
- if (!missed_snapinfo->node_snap_info) {
+ buf = strtok_r (missed_info, ":", &save_ptr);
+ if (!buf) {
+ ret = -1;
+ goto out;
+ }
+ missed_snapinfo->node_uuid = gf_strdup(buf);
+ if (!missed_snapinfo->node_uuid) {
+ ret = -1;
+ goto out;
+ }
+
+ buf = strtok_r (NULL, ":", &save_ptr);
+ if (!buf) {
+ ret = -1;
+ goto out;
+ }
+ missed_snapinfo->snap_uuid = gf_strdup(buf);
+ if (!missed_snapinfo->snap_uuid) {
ret = -1;
goto out;
}
@@ -5496,12 +5562,8 @@ out:
glusterd_free_snap_op (missed_snap_op);
if (missed_snapinfo &&
- (free_missed_snap_info == _gf_true)) {
- if (missed_snapinfo->node_snap_info)
- GF_FREE (missed_snapinfo->node_snap_info);
-
- GF_FREE (missed_snapinfo);
- }
+ (free_missed_snap_info == _gf_true))
+ glusterd_free_missed_snapinfo (missed_snapinfo);
}
gf_log (this->name, GF_LOG_TRACE, "Returning %d", ret);
@@ -5517,6 +5579,7 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
char *save_ptr = NULL;
char *nodeid = NULL;
char *snap_uuid = NULL;
+ char *snap_vol_id = NULL;
char *brick_path = NULL;
char missed_info[PATH_MAX] = "";
char name_buf[PATH_MAX] = "";
@@ -5563,13 +5626,14 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
*/
nodeid = strtok_r (tmp, ":", &save_ptr);
snap_uuid = strtok_r (NULL, "=", &save_ptr);
+ snap_vol_id = strtok_r (NULL, ":", &save_ptr);
brick_num = atoi(strtok_r (NULL, ":", &save_ptr));
brick_path = strtok_r (NULL, ":", &save_ptr);
snap_op = atoi(strtok_r (NULL, ":", &save_ptr));
snap_status = atoi(strtok_r (NULL, ":", &save_ptr));
if (!nodeid || !snap_uuid || !brick_path ||
- brick_num < 1 || snap_op < 1 ||
+ !snap_vol_id || brick_num < 1 || snap_op < 1 ||
snap_status < 1) {
gf_log (this->name, GF_LOG_ERROR,
"Invalid missed_snap_entry");
@@ -5580,11 +5644,12 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
snprintf (missed_info, sizeof(missed_info), "%s:%s",
nodeid, snap_uuid);
- ret = glusterd_store_missed_snaps_list (missed_info,
- brick_num,
- brick_path,
- snap_op,
- snap_status);
+ ret = glusterd_add_new_entry_to_list (missed_info,
+ snap_vol_id,
+ brick_num,
+ brick_path,
+ snap_op,
+ snap_status);
if (ret) {
gf_log (this->name, GF_LOG_ERROR,
"Failed to store missed snaps_list");
@@ -5595,6 +5660,7 @@ glusterd_add_missed_snaps_to_list (dict_t *dict, int32_t missed_snap_count)
tmp = NULL;
}
+ ret = 0;
out:
if (tmp)
GF_FREE (tmp);