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authorAnand Avati <avati@redhat.com>2013-03-05 14:48:28 -0800
committerAnand Avati <avati@redhat.com>2013-09-03 11:26:26 -0700
commit53e98f11d1f3df30cc013af021464a257949a62d (patch)
tree2841ea3d822918685c85f46cad09e03a3d648490 /xlators/mgmt/glusterd/src
parent0d60175bd684cf6a14f750579d82dbd1ba97fcbc (diff)
features/qemu-block: support for QCOW2 and QED formats
This patch adds support for internals snapshots using QCOW2 and general framework for external snapshots (next patch) with QCOW2 and QED. For internal snapshots, the file must be "initialized" or "formatted" into QCOW2 format, and specify a file size. Snapshots can be created, deleted, and applied ("goto"). e.g: // Format and Initialize sh# setfattr -n trusted.glusterfs.block-format -v qcow2:10GB /mnt/imgfile sh# ls -l /mnt/imgfile -rw-r--r-- 1 root root 10G Jul 18 21:20 imgfile // Create a snapshot sh# setfattr -n trusted.glusterfs.block-snapshot-create -v name1 imgfile // Apply a snapshot sh# setfattr -n trusted.gluterfs.block-snapshot-goto -v name1 imgfile Change-Id: If993e057a9455967ba3fa9dcabb7f74b8b2cf4c3 BUG: 986775 Signed-off-by: Anand Avati <avati@redhat.com> Reviewed-on: http://review.gluster.org/5367 Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Brian Foster <bfoster@redhat.com>
Diffstat (limited to 'xlators/mgmt/glusterd/src')
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volgen.c13
-rw-r--r--xlators/mgmt/glusterd/src/glusterd-volume-set.c11
2 files changed, 24 insertions, 0 deletions
diff --git a/xlators/mgmt/glusterd/src/glusterd-volgen.c b/xlators/mgmt/glusterd/src/glusterd-volgen.c
index 06a2d37d..61ca52dc 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volgen.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volgen.c
@@ -2474,6 +2474,19 @@ client_graph_builder (volgen_graph_t *graph, glusterd_volinfo_t *volinfo,
}
}
+
+ ret = glusterd_volinfo_get_boolean (volinfo, "features.file-snapshot");
+ if (ret == -1)
+ goto out;
+ if (ret) {
+ xl = volgen_graph_add (graph, "features/qemu-block", volname);
+
+ if (!xl) {
+ ret = -1;
+ goto out;
+ }
+ }
+
/* Logic to make sure NFS doesn't have performance translators by
default for a volume */
tmp_data = dict_get (set_dict, "nfs-volume-file");
diff --git a/xlators/mgmt/glusterd/src/glusterd-volume-set.c b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
index ed5fc96a..738cacd5 100644
--- a/xlators/mgmt/glusterd/src/glusterd-volume-set.c
+++ b/xlators/mgmt/glusterd/src/glusterd-volume-set.c
@@ -944,6 +944,17 @@ struct volopt_map_entry glusterd_volopt_map[] = {
.flags = OPT_FLAG_CLIENT_OPT
},
+ /* Feature translators */
+ { .key = "features.file-snapshot",
+ .voltype = "features/qemu-block",
+ .option = "!feat",
+ .value = "off",
+ .op_version = 3,
+ .description = "enable/disable file-snapshot feature in the "
+ "volume.",
+ .flags = OPT_FLAG_CLIENT_OPT | OPT_FLAG_XLATOR_OPT
+ },
+
/* Quota xlator options */
{ .key = VKEY_FEATURES_LIMIT_USAGE,
.voltype = "features/quota",