def _restore_server(source_uuid, host, port, backup_image):
"""Restore the backup on the destination Server.
:param source_uuid: The UUID of the source server.
:param host: The hostname of the destination server.
:param port: The port number of the destination server.
:param backup_image: The backup image path.
"""
restore_user = _services_utils.read_config_value(_config.global_config,
'servers', 'restore_user')
restore_passwd = _services_utils.read_config_value(_config.global_config,
'servers',
'restore_password')
mysqlclient_binary = _services_utils.read_config_value(
_config.global_config, 'sharding', 'mysqlclient_program')
source_server = _server.MySQLServer.fetch(source_uuid)
if not source_server:
raise _errors.ServerError(SERVER_NOT_FOUND % source_uuid)
#Build a backup image that will be used for restoring
bk_img = _backup.BackupImage(backup_image)
_backup.MySQLDump.restore_server(host, port, restore_user, restore_passwd,
bk_img, mysqlclient_binary)
_LOGGER.debug("Done with restore of server with host = %s, port = %s",
host, port)
def _restore_shard_backup(shard_id, source_group_id, destn_group_id,
backup_image, split_value, prune_limit, cmd):
"""Restore the backup on the destination Group.
:param shard_id: The shard ID of the shard that needs to be moved.
:param source_group_id: The group_id of the source shard.
:param destn_group_id: The ID of the group to which the shard needs to
be moved.
:param backup_image: The destination file that contains the backup
of the source shard.
:param split_value: Indicates the value at which the range for the
particular shard will be split. Will be set only
for shard split operations.
:param prune_limit: The number of DELETEs that should be
done in one batch.
:param cmd: Indicates the type of re-sharding operation
"""
restore_user = _services_utils.read_config_value(
_config.global_config,
'servers',
'restore_user'
)
restore_passwd = _services_utils.read_config_value(
_config.global_config,
'servers',
'restore_password'
)
mysqlclient_binary = _services_utils.read_config_value(
_config.global_config,
'sharding',
'mysqlclient_program'
)
destn_group = Group.fetch(destn_group_id)
if destn_group is None:
raise _errors.ShardingError(_services_sharding.SHARD_GROUP_NOT_FOUND %
(destn_group_id, ))
#Build a backup image that will be used for restoring
bk_img = _backup.BackupImage(backup_image)
for destn_group_server in destn_group.servers():
destn_group_server.connect()
_backup.MySQLDump.restore_fabric_server(
destn_group_server,
restore_user, restore_passwd,
bk_img,
mysqlclient_binary
)
#Setup sync between the source and the destination groups.
_events.trigger_within_procedure(
SETUP_REPLICATION,
shard_id,
source_group_id,
destn_group_id,
split_value,
prune_limit,
cmd
)
def _restore_server(source_uuid, host, port, backup_image, mysqlclient_binary,
config_file):
"""Restore the backup on the destination Server.
:param source_uuid: The UUID of the source server.
:param host: The hostname of the destination server.
:param port: The port number of the destination server.
:param userid: The User Name to be used to connect to the destn server.
:param passwd: The password to be used to connect to the destn server.
:param mysqldump_binary: The MySQL Dump Binary path.
:param mysqlclient_binary: The MySQL Client Binary path.
:param config_file: The complete path to the fabric configuration
file.
"""
source_server = _server.MySQLServer.fetch(source_uuid)
if not source_server:
raise _errors.ServerError(SERVER_NOT_FOUND % source_uuid)
#Build a backup image that will be used for restoring
bk_img = _backup.BackupImage(backup_image)
_backup.MySQLDump.restore_server(host, port, source_server.USER,
source_server.PASSWD, bk_img, config_file,
mysqlclient_binary)
_LOGGER.debug("Done with restore of server with host = %s, port = %s" %\
(host, port,))