def create_export(self, context, volume, connector):
d_res_name, d_vol_nr = self._resource_name_volnr_for_volume(volume)
nodename = connector["host"]
# Ensure the node is known to DRBDmanage.
# Note that this does *not* mean that DRBDmanage has to
# be installed on it!
# This is just so that DRBD allows the IP to connect.
node_prop = {
dm_const.NODE_ADDR: connector["ip"],
dm_const.FLAG_DRBDCTRL: dm_const.BOOL_FALSE,
dm_const.FLAG_STORAGE: dm_const.BOOL_FALSE,
dm_const.FLAG_EXTERNAL: dm_const.BOOL_TRUE,
}
res = self.call_or_reconnect(
self.odm.create_node, nodename, node_prop)
self._check_result(res, ignore=[dm_exc.DM_EEXIST])
# Ensure the data is accessible, by creating an assignment.
assg_prop = {
dm_const.FLAG_DISKLESS: dm_const.BOOL_TRUE,
}
# If we create the assignment here, it's temporary -
# and has to be removed later on again.
assg_prop.update(dm_utils.aux_props_to_dict({
AUX_PROP_TEMP_CLIENT: dm_const.BOOL_TRUE,
}))
res = self.call_or_reconnect(
self.odm.assign, nodename, d_res_name, assg_prop)
self._check_result(res, ignore=[dm_exc.DM_EEXIST])
# Wait for DRBDmanage to have completed that action.
# A DRBDmanage controlled node will set the cstate:deploy flag;
# an external node will not be available to change it, so we have
# to wait for the storage nodes to remove the upd_con flag
# (ie. they're now ready to receive the connection).
if self._is_external_node(nodename):
self._wait_for_node_assignment(
d_res_name, d_vol_nr, [],
check_vol_deployed=False,
filter_props={
# must be deployed
CS_DEPLOYED: dm_const.BOOL_TRUE,
# must be a storage node (not diskless),
CS_DISKLESS: dm_const.BOOL_FALSE,
# connection must be available, no need for updating
CS_UPD_CON: dm_const.BOOL_FALSE,
})
else:
self._wait_for_node_assignment(
d_res_name, d_vol_nr, [nodename],
check_vol_deployed=True,
filter_props={
CS_DEPLOYED: dm_const.BOOL_TRUE,
})
return self._return_connection_data(nodename, volume)
def create_export(self, context, volume, connector):
d_res_name, d_vol_nr = self._resource_name_volnr_for_volume(volume)
nodename = connector["host"]
# Ensure the node is known to DRBDmanage.
# Note that this does *not* mean that DRBDmanage has to
# be installed on it!
# This is just so that DRBD allows the IP to connect.
node_prop = {
dm_const.NODE_ADDR: connector["ip"],
dm_const.FLAG_DRBDCTRL: dm_const.BOOL_FALSE,
dm_const.FLAG_STORAGE: dm_const.BOOL_FALSE,
dm_const.FLAG_EXTERNAL: dm_const.BOOL_TRUE,
}
res = self.call_or_reconnect(
self.odm.create_node, nodename, node_prop)
self._check_result(res, ignore=[dm_exc.DM_EEXIST])
# Ensure the data is accessible, by creating an assignment.
assg_prop = {
dm_const.FLAG_DISKLESS: dm_const.BOOL_TRUE,
}
# If we create the assignment here, it's temporary -
# and has to be removed later on again.
assg_prop.update(dm_utils.aux_props_to_dict({
AUX_PROP_TEMP_CLIENT: dm_const.BOOL_TRUE,
}))
res = self.call_or_reconnect(
self.odm.assign, nodename, d_res_name, assg_prop)
self._check_result(res, ignore=[dm_exc.DM_EEXIST])
# Wait for DRBDmanage to have completed that action.
# A DRBDmanage controlled node will set the cstate:deploy flag;
# an external node will not be available to change it, so we have
# to wait for the storage nodes to remove the upd_con flag
# (ie. they're now ready to receive the connection).
if self._is_external_node(nodename):
self._wait_for_node_assignment(
d_res_name, d_vol_nr, [],
check_vol_deployed=False,
filter_props={
# must be deployed
CS_DEPLOYED: dm_const.BOOL_TRUE,
# must be a storage node (not diskless),
CS_DISKLESS: dm_const.BOOL_FALSE,
# connection must be available, no need for updating
CS_UPD_CON: dm_const.BOOL_FALSE,
})
else:
self._wait_for_node_assignment(
d_res_name, d_vol_nr, [nodename],
check_vol_deployed=True,
filter_props={
CS_DEPLOYED: dm_const.BOOL_TRUE,
})
return self._return_connection_data(nodename, volume)
