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authorM. Mohan Kumar <mohan@in.ibm.com>2012-11-29 21:46:07 +0530
committerVijay Bellur <vbellur@redhat.com>2012-11-29 09:39:25 -0800
commitca796eba11a3f965bfbaa9bbffb5ef00c9bbb7ad (patch)
tree26dfc9d8d2c5f0aa2cd2cfe5d590f4930bd4a7ba /cli/src/cli-cmd-parser.c
parentb7840704c2095ad64f56da8d37fbae26db3a81ac (diff)
BD Backend: Volume creation support
A new parameter type is added to volume create command. To use BD xlator one has to specify following argument in addition to normal volume create device vg brick:<VG-NAME> for example, $ gluster volume create lv_volume device vg host:/vg1 Changes from previous version * New type 'backend' added to volinfo structure to differentiate between posix and bd xlator * Most of the volume related commands are updated to handle BD xlator, like add-brick, heal-brick etc refuse to work when volume is BD xlator type * Only one VG (ie brick) can be specified for BD xlator during volume creation * volume info shows VG info if its of type BD xlator BUG: 805138 Change-Id: I0ff90aca04840c71f364fabb0ab43ce33f9278ce Signed-off-by: M. Mohan Kumar <mohan@in.ibm.com> Reviewed-on: http://review.gluster.org/3717 Reviewed-by: Vijay Bellur <vbellur@redhat.com> Tested-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'cli/src/cli-cmd-parser.c')
-rw-r--r--cli/src/cli-cmd-parser.c52
1 files changed, 50 insertions, 2 deletions
diff --git a/cli/src/cli-cmd-parser.c b/cli/src/cli-cmd-parser.c
index 4181e6c..f7ee29a 100644
--- a/cli/src/cli-cmd-parser.c
+++ b/cli/src/cli-cmd-parser.c
@@ -159,13 +159,21 @@ cli_cmd_volume_create_parse (const char **words, int wordcount, dict_t **options
int32_t index = 0;
char *bricks = NULL;
int32_t brick_count = 0;
- char *opwords[] = { "replica", "stripe", "transport", NULL };
+ char *opwords[] = { "replica", "stripe", "transport",
+#ifdef HAVE_BD_XLATOR
+ "device",
+#endif
+ NULL };
+
char *invalid_volnames[] = {"volume", "type", "subvolumes", "option",
"end-volume", "all", NULL};
char *w = NULL;
int op_count = 0;
int32_t replica_count = 1;
int32_t stripe_count = 1;
+#ifdef HAVE_BD_XLATOR
+ char *dev_type = NULL;
+#endif
GF_ASSERT (words);
GF_ASSERT (options);
@@ -300,7 +308,26 @@ cli_cmd_volume_create_parse (const char **words, int wordcount, dict_t **options
goto out;
}
index += 2;
- } else {
+ }
+#ifdef HAVE_BD_XLATOR
+ else if ((strcmp (w, "device")) == 0) {
+ if (dev_type) {
+ cli_err ("'device' option given more"
+ " than one time");
+ goto out;
+ }
+ if ((strcasecmp (words[index+1], "vg") == 0)) {
+ dev_type = gf_strdup ("vg");
+ } else {
+ gf_log ("", GF_LOG_ERROR, "incorrect"
+ " device type specified");
+ ret = -1;
+ goto out;
+ }
+ index += 2;
+ }
+#endif
+ else {
GF_ASSERT (!"opword mismatch");
ret = -1;
goto out;
@@ -336,6 +363,19 @@ cli_cmd_volume_create_parse (const char **words, int wordcount, dict_t **options
goto out;
}
+ /* BD xlator does not support multiple bricks */
+#ifdef HAVE_BD_XLATOR
+ if (brick_count > 1 && dev_type) {
+ cli_err ("Block Device backend volume does not support multiple"
+ " bricks");
+ gf_log ("", GF_LOG_ERROR,
+ "Block Device backend volumer does not support multiple"
+ " bricks");
+ ret = -1;
+ goto out;
+ }
+#endif
+
if (brick_count % sub_count) {
if (type == GF_CLUSTER_TYPE_STRIPE)
cli_err ("number of bricks is not a multiple of "
@@ -369,6 +409,14 @@ cli_cmd_volume_create_parse (const char **words, int wordcount, dict_t **options
if (ret)
goto out;
+#ifdef HAVE_BD_XLATOR
+ if (dev_type) {
+ ret = dict_set_dynstr (dict, "device", dev_type);
+ if (ret)
+ goto out;
+ }
+#endif
+
ret = dict_set_int32 (dict, "count", brick_count);
if (ret)
goto out;