def define_snapshots(self):
"""
Process each of the discovered volumes to look for any
associated snapshots
"""
# process each discovered volume
for volume_name in self.volume:
this_volume = self.volume[volume_name]
cmd = GlusterCommand("gluster snap list %s" % volume_name, \
timeout=cfg.CMD_TIMEOUT)
cmd.run()
# (rc, snap_info) = issueCMD("gluster snap list %s"%(volume_name))
if cmd.rc == 0:
# process the snap information
if not cmd.stdout[0].lower().startswith('no snapshots'):
for snap in cmd.stdout:
snap_name = snap.strip()
if cfg.debug:
print "defineSnapshots. Creating a snapshot instance for volume '%s' called '%s'" % (volume_name, snap_name)
new_snapshot = Snapshot(snap_name, this_volume, volume_name)
this_volume.snapshot_list.append(new_snapshot)
this_volume.snapshot_count = len(this_volume.snapshot_list)
if cfg.debug:
print "defineSnapshots. Volume '%s' has %d snapshots" % (volume_name, this_volume.snapshot_count)
def initialise(self):
""" call the node, volume 'generator' to create the child objects
(bricks are created within the volume logic) """
self.has_volumes = True if glob(
'/var/lib/glusterd/vols/*/trusted-*-fuse.vol') else False
set_active_peer(
) # setup GlusterCommand class to have a valid node for commands
# if has_volumes is populated we have vol files, then it's ok to
# run the queries to define the node and volume objects
if self.has_volumes:
self.define_nodes()
self.define_volumes()
# if this cluster supports snapshots, take a look to see if
# there are any
self.snapshot_capable = version_ok(self.glfs_version,
cfg.snapshot_support)
if self.snapshot_capable:
self.define_snapshots()
self.snapshot_count = Snapshot.snap_count()
else:
# no volumes in this cluster, print a message and abort
print("This cluster doesn't have any volumes/daemons running.")
print(
"The output below shows the current nodes attached to this host.\n"
)
cmd = GlusterCommand('gluster pool list', timeout=cfg.CMD_TIMEOUT)
cmd.run()
for line in cmd.stdout:
print(line)
print()
exit(12)
def initialise(self):
""" call the node, volume 'generator' to create the child objects
(bricks are created within the volume logic) """
self.has_volumes = True if glob('/var/lib/glusterd/vols/*/trusted-*-fuse.vol') else False
set_active_peer() # setup GlusterCommand class to have a valid node for commands
# if has_volumes is populated we have vol files, then it's ok to
# run the queries to define the node and volume objects
if self.has_volumes:
self.define_nodes()
self.define_volumes()
# if this cluster supports snapshots, take a look to see if
# there are any
self.snapshot_capable = version_ok(self.glfs_version, cfg.snapshot_support)
if self.snapshot_capable:
self.define_snapshots()
self.snapshot_count = Snapshot.snap_count()
else:
# no volumes in this cluster, print a message and abort
print "This cluster doesn't have any volumes/daemons running."
print "The output below shows the current nodes attached to this host.\n"
cmd = GlusterCommand('gluster pool list')
cmd.run()
for line in cmd.stdout:
print line
print
exit(12)