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authorKrishnan Parthasarathi <kp@gluster.com>2011-10-03 15:25:12 +0530
committerVijay Bellur <vijay@gluster.com>2011-10-05 22:21:19 -0700
commite397772955f10f22fcb920f34a32efd859fb727d (patch)
treee7f805788dcfca193b3d36c60e057b25338387df /xlators/mgmt/glusterd/src/glusterd-store.c
parent72f80b87c40a899a5c6f838d368a80e6f9846f69 (diff)
glusterd: Handle restoring of volumes created in older versions.
Change-Id: Idd9cb9d05122750ac78410b8f5a080104d6c1e0a BUG: 3685 Reviewed-on: http://review.gluster.com/554 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Amar Tumballi <amar@gluster.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src/glusterd-store.c')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-store.c43
1 files changed, 28 insertions, 15 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-store.c b/xlators/mgmt/glusterd/src/glusterd-store.c
index a18deceafb6..823fb37cd71 100644
--- a/xlators/mgmt/glusterd/src/glusterd-store.c
+++ b/xlators/mgmt/glusterd/src/glusterd-store.c
@@ -1895,21 +1895,34 @@ glusterd_store_retrieve_volume (char *volname)
/* backward compatibility */
{
- /* would be true if type is 'GF_CLUSTER_TYPE_NONE' */
- if (!volinfo->dist_leaf_count)
- volinfo->dist_leaf_count = ((!volinfo->sub_count) ? 1 :
- volinfo->sub_count);
-
- /* would be true for all volumes in 3.1.x and 3.2.x,
- or if type is not 'STRIPE_REPLICATE' (in 3.3 pre-releases) */
- if (!volinfo->stripe_count)
- volinfo->stripe_count = 1;
-
- /* would be true for some pre-releases of 3.3, and all
- releases of 3.1.x and 3.2.x */
- if (!volinfo->replica_count)
- volinfo->replica_count = (volinfo->dist_leaf_count /
- volinfo->stripe_count);
+
+ switch (volinfo->type) {
+
+ case GF_CLUSTER_TYPE_NONE:
+ volinfo->stripe_count = 1;
+ volinfo->replica_count = 1;
+ break;
+
+ case GF_CLUSTER_TYPE_STRIPE:
+ volinfo->stripe_count = volinfo->sub_count;
+ volinfo->replica_count = 1;
+ break;
+
+ case GF_CLUSTER_TYPE_REPLICATE:
+ volinfo->stripe_count = 1;
+ volinfo->replica_count = volinfo->sub_count;
+ break;
+
+ case GF_CLUSTER_TYPE_STRIPE_REPLICATE:
+ /* Introduced in 3.3 */
+ GF_ASSERT (volinfo->stripe_count > 0);
+ GF_ASSERT (volinfo->replica_count > 0);
+ break;
+
+ default:
+ GF_ASSERT (0);
+ break;
+ }
volinfo->dist_leaf_count = (volinfo->stripe_count *
volinfo->replica_count);