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authorKrutika Dhananjay <kdhananj@redhat.com>2013-02-12 17:26:35 +0530
committerAnand Avati <avati@redhat.com>2013-04-09 17:39:30 -0700
commitc9800f0986a10bbde9121239590e3cb25b94c5f8 (patch)
treeee6045c86cae871472131c96fef90003e395575f /xlators/mgmt/glusterd/src
parentf364d542aaf272c14b1d6ef7c9ac805db0fdb45c (diff)
glusterd: changes in 'volume create' behaviour
This patch incorporates all the changes suggested on the behaviour of 'volume create' command in http://review.gluster.org/#change,4214 (comment #14, to be precise). Change-Id: Iaac524a59738b177415595b18aa8a136090d3d25 BUG: 948729 Signed-off-by: Krutika Dhananjay <kdhananj@redhat.com> Reviewed-on: http://review.gluster.org/4740 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Anand Avati <avati@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-brick-ops.c12
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-replace-brick.c11
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.c109
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-utils.h9
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-ops.c16
5 files changed, 137 insertions, 20 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-brick-ops.c b/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
index 2ac2699cf..d21facb0a 100644
--- a/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-brick-ops.c
@@ -423,6 +423,10 @@ glusterd_handle_add_brick (rpcsvc_request_t *req)
stripe_count);
}
+ if (!dict_get (dict, "force")) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to get flag");
+ goto out;
+ }
ret = glusterd_volinfo_find (volname, &volinfo);
if (ret) {
@@ -1034,6 +1038,7 @@ glusterd_op_stage_add_brick (dict_t *dict, char **op_errstr)
gf_boolean_t brick_alloc = _gf_false;
char *all_bricks = NULL;
char *str_ret = NULL;
+ gf_boolean_t is_force = _gf_false;
priv = THIS->private;
if (!priv)
@@ -1096,6 +1101,8 @@ glusterd_op_stage_add_brick (dict_t *dict, char **op_errstr)
goto out;
}
+ is_force = dict_get_str_boolean (dict, "force", _gf_false);
+
if (bricks) {
brick_list = gf_strdup (bricks);
all_bricks = gf_strdup (bricks);
@@ -1137,10 +1144,9 @@ glusterd_op_stage_add_brick (dict_t *dict, char **op_errstr)
}
if (!uuid_compare (brickinfo->uuid, MY_UUID)) {
- ret = glusterd_brick_create_path (brickinfo->hostname,
- brickinfo->path,
+ ret = glusterd_validate_and_create_brickpath (brickinfo,
volinfo->volume_id,
- op_errstr);
+ op_errstr, is_force);
if (ret)
goto out;
}
diff --git a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
index 36f0b10dc..0afe2203c 100644
--- a/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
+++ b/xlators/mgmt/glusterd/src/glusterd-replace-brick.c
@@ -213,6 +213,7 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
char pidfile[PATH_MAX] = {0};
char *task_id_str = NULL;
xlator_t *this = NULL;
+ gf_boolean_t is_force = _gf_false;
this = THIS;
GF_ASSERT (this);
@@ -349,6 +350,8 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
ret = 0;
}
}
+ is_force = dict_get_str_boolean (dict, "force", _gf_false);
+
break;
case GF_REPLACE_OP_PAUSE:
@@ -383,7 +386,9 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
}
break;
- case GF_REPLACE_OP_COMMIT_FORCE: break;
+ case GF_REPLACE_OP_COMMIT_FORCE:
+ is_force = _gf_true;
+ break;
case GF_REPLACE_OP_STATUS:
@@ -507,9 +512,9 @@ glusterd_op_stage_replace_brick (dict_t *dict, char **op_errstr,
if (!glusterd_is_rb_ongoing (volinfo) &&
glusterd_is_local_addr (host)) {
- ret = glusterd_brick_create_path (host, path,
+ ret = glusterd_validate_and_create_brickpath (dst_brickinfo,
volinfo->volume_id,
- op_errstr);
+ op_errstr, is_force);
if (ret)
goto out;
}
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.c b/xlators/mgmt/glusterd/src/glusterd-utils.c
index 09aeb7370..6c5d0e2f0 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.c
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.c
@@ -924,6 +924,105 @@ out:
return available;
}
+int
+glusterd_validate_and_create_brickpath (glusterd_brickinfo_t *brickinfo,
+ uuid_t volume_id, char **op_errstr,
+ gf_boolean_t is_force)
+{
+ int ret = -1;
+ char parentdir[PATH_MAX] = {0,};
+ struct stat parent_st = {0,};
+ struct stat brick_st = {0,};
+ struct stat root_st = {0,};
+ char msg[2048] = {0,};
+ gf_boolean_t is_created = _gf_false;
+
+ ret = mkdir (brickinfo->path, 0777);
+ if (ret) {
+ if (errno != EEXIST) {
+ snprintf (msg, sizeof (msg), "Failed to create brick "
+ "directory for brick %s:%s. Reason : %s ",
+ brickinfo->hostname, brickinfo->path,
+ strerror (errno));
+ goto out;
+ }
+ } else {
+ is_created = _gf_true;
+ }
+
+ ret = lstat (brickinfo->path, &brick_st);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "lstat failed on %s. Reason : %s",
+ brickinfo->path, strerror (errno));
+ goto out;
+ }
+
+ if ((!is_created) && (!S_ISDIR (brick_st.st_mode))) {
+ snprintf (msg, sizeof (msg), "The provided path %s which is "
+ "already present, is not a directory",
+ brickinfo->path);
+ ret = -1;
+ goto out;
+ }
+
+ snprintf (parentdir, sizeof (parentdir), "%s/..", brickinfo->path);
+
+ ret = lstat ("/", &root_st);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "lstat failed on /. Reason : %s",
+ strerror (errno));
+ goto out;
+ }
+
+ ret = lstat (parentdir, &parent_st);
+ if (ret) {
+ snprintf (msg, sizeof (msg), "lstat failed on %s. Reason : %s",
+ parentdir, strerror (errno));
+ goto out;
+ }
+
+ if (!is_force) {
+ if (brick_st.st_dev != parent_st.st_dev) {
+ snprintf (msg, sizeof (msg), "The brick %s:%s is a "
+ "mount point. Please create a sub-directory "
+ "under the mount point and use that as the "
+ "brick directory. Or use 'force' at the end "
+ "of the command if you want to override this "
+ "behavior.", brickinfo->hostname,
+ brickinfo->path);
+ ret = -1;
+ goto out;
+ }
+ else if (parent_st.st_dev == root_st.st_dev) {
+ snprintf (msg, sizeof (msg), "The brick %s:%s is "
+ "is being created in the root partition. It "
+ "is recommended that you don't use the "
+ "system's root partition for storage backend."
+ " Or use 'force' at the end of the command if"
+ " you want to override this behavior.",
+ brickinfo->hostname, brickinfo->path);
+ ret = -1;
+ goto out;
+ }
+ }
+
+ ret = glusterd_check_and_set_brick_xattr (brickinfo->hostname,
+ brickinfo->path, volume_id,
+ op_errstr);
+ if (ret)
+ goto out;
+
+ ret = 0;
+
+out:
+ if (ret && is_created)
+ rmdir (brickinfo->path);
+ if (ret && !*op_errstr && msg[0] != '\0')
+ *op_errstr = gf_strdup (msg);
+
+ return ret;
+}
+
int32_t
glusterd_volume_brickinfo_get (uuid_t uuid, char *hostname, char *path,
glusterd_volinfo_t *volinfo,
@@ -5045,17 +5144,13 @@ out:
}
int
-glusterd_brick_create_path (char *host, char *path, uuid_t uuid,
- char **op_errstr)
+glusterd_check_and_set_brick_xattr (char *host, char *path, uuid_t uuid,
+ char **op_errstr)
{
int ret = -1;
char msg[2048] = {0,};
gf_boolean_t in_use = _gf_false;
- ret = mkdir_p (path, 0777, _gf_true);
- if (ret)
- goto out;
-
/* Check for xattr support in backend fs */
ret = sys_lsetxattr (path, "trusted.glusterfs.test",
"working", 8, 0);
@@ -5068,7 +5163,6 @@ glusterd_brick_create_path (char *host, char *path, uuid_t uuid,
} else {
sys_lremovexattr (path, "trusted.glusterfs.test");
-
}
ret = glusterd_is_path_in_use (path, &in_use, op_errstr);
@@ -5095,7 +5189,6 @@ out:
*op_errstr = gf_strdup (msg);
return ret;
-
}
int
diff --git a/xlators/mgmt/glusterd/src/glusterd-utils.h b/xlators/mgmt/glusterd/src/glusterd-utils.h
index c7fbe447e..28182d6ba 100644
--- a/xlators/mgmt/glusterd/src/glusterd-utils.h
+++ b/xlators/mgmt/glusterd/src/glusterd-utils.h
@@ -317,8 +317,13 @@ glusterd_rb_check_bricks (glusterd_volinfo_t *volinfo,
glusterd_brickinfo_t *dst_brick);
int
-glusterd_brick_create_path (char *host, char *path, uuid_t uuid,
- char **op_errstr);
+glusterd_check_and_set_brick_xattr (char *host, char *path, uuid_t uuid,
+ char **op_errstr);
+
+int
+glusterd_validate_and_create_brickpath (glusterd_brickinfo_t *brickinfo,
+ uuid_t volume_id, char **op_errstr,
+ gf_boolean_t is_force);
int
glusterd_sm_tr_log_transition_add (glusterd_sm_tr_log_t *log,
int old_state, int new_state,
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
index bc5f8f2a7..fd4e0268a 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-ops.c
@@ -134,6 +134,11 @@ glusterd_handle_create_volume (rpcsvc_request_t *req)
goto out;
}
+ if (!dict_get (dict, "force")) {
+ gf_log (this->name, GF_LOG_ERROR, "Failed to get 'force' flag");
+ goto out;
+ }
+
uuid_generate (volume_id);
free_ptr = gf_strdup (uuid_utoa (volume_id));
ret = dict_set_dynstr (dict, "volume-id", free_ptr);
@@ -610,6 +615,8 @@ glusterd_op_stage_create_volume (dict_t *dict, char **op_errstr)
#ifdef HAVE_BD_XLATOR
char *dev_type = NULL;
#endif
+ gf_boolean_t is_force = _gf_false;
+
this = THIS;
GF_ASSERT (this);
priv = this->private;
@@ -663,6 +670,8 @@ glusterd_op_stage_create_volume (dict_t *dict, char **op_errstr)
goto out;
}
+ is_force = dict_get_str_boolean (dict, "force", _gf_false);
+
if (bricks) {
brick_list = gf_strdup (bricks);
if (!brick_list) {
@@ -715,10 +724,9 @@ glusterd_op_stage_create_volume (dict_t *dict, char **op_errstr)
} else
#endif
if (!uuid_compare (brick_info->uuid, MY_UUID)) {
- ret = glusterd_brick_create_path (brick_info->hostname,
- brick_info->path,
- volume_uuid,
- op_errstr);
+ ret = glusterd_validate_and_create_brickpath (brick_info,
+ volume_uuid, op_errstr,
+ is_force);
if (ret)
goto out;
brick_list = tmpptr;