diff options
| author | Anand Avati <avati@redhat.com> | 2013-03-05 14:48:28 -0800 |
|---|---|---|
| committer | Anand Avati <avati@redhat.com> | 2013-09-03 11:26:26 -0700 |
| commit | 53e98f11d1f3df30cc013af021464a257949a62d (patch) | |
| tree | 2841ea3d822918685c85f46cad09e03a3d648490 /xlators/mgmt/glusterd/src | |
| parent | 0d60175bd684cf6a14f750579d82dbd1ba97fcbc (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.c | 13 | ||||
| -rw-r--r-- | xlators/mgmt/glusterd/src/glusterd-volume-set.c | 11 |
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 06a2d37d58c..61ca52dc0d5 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 ed5fc96ad19..738cacd5683 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", |