def list_asds(mountpoint):
"""
Lists all ASDs found on a given mountpoint
:param mountpoint: Mountpoint to list ASDs on
:type mountpoint: str
:return: Dictionary of ASDs
:rtype: dict
"""
asds = {}
try:
for asd_id in os.listdir(mountpoint):
if os.path.isdir('/'.join([mountpoint, asd_id])) and Configuration.exists(ASDController.ASD_CONFIG.format(asd_id)):
asds[asd_id] = Configuration.get(ASDController.ASD_CONFIG.format(asd_id))
output, error = ASDController._local_client.run(['ls', '{0}/{1}/'.format(mountpoint, asd_id)], allow_nonzero=True, return_stderr=True)
output += error
if 'Input/output error' in output:
asds[asd_id].update({'state': 'error',
'state_detail': 'io_error'})
continue
service_name = ASDController.ASD_SERVICE_PREFIX.format(asd_id)
if ServiceManager.has_service(service_name, ASDController._local_client):
if ServiceManager.get_service_status(service_name, ASDController._local_client)[0] is False:
asds[asd_id].update({'state': 'error',
'state_detail': 'service_failure'})
else:
asds[asd_id].update({'state': 'ok'})
else:
asds[asd_id].update({'state': 'error',
'state_detail': 'service_failure'})
except OSError as ex:
ASDController._logger.info('Error collecting ASD information: {0}'.format(str(ex)))
return asds
def delete_config(self, ip=None):
"""
Deletes a configuration file
"""
if self.filesystem is False:
key = self.config_path
if Configuration.exists(key, raw=True):
Configuration.delete(key, raw=True)
else:
client = self._load_client(ip)
client.file_delete(self.config_path)
with open(Toolbox.BOOTSTRAP_FILE, 'r') as bootstrap_file:
NODE_ID = json.load(bootstrap_file)['node_id']
os.environ['ASD_NODE_ID'] = NODE_ID
CONFIG_ROOT = '/ovs/alba/asdnodes/{0}/config'.format(NODE_ID)
CURRENT_VERSION = 1
_logger = LogHandler.get('asd-manager', name='post-update')
_logger.info('Executing post-update logic of package openvstorage-sdm')
with file_mutex('package_update_pu'):
client = LocalClient('127.0.0.1', username='******')
key = '{0}/versions'.format(CONFIG_ROOT)
version = Configuration.get(key) if Configuration.exists(key) else 0
service_name = 'asd-manager'
if ServiceManager.has_service(service_name, client) and ServiceManager.get_service_status(service_name, client)[0] is True:
_logger.info('Stopping asd-manager service')
ServiceManager.stop_service(service_name, client)
if version < CURRENT_VERSION:
try:
# Put migration code here
pass
except:
pass
Configuration.set(key, CURRENT_VERSION)
if ServiceManager.has_service(service_name, client) and ServiceManager.get_service_status(service_name, client)[0] is False:
def create_asd(partition_alias):
"""
Creates and starts an ASD on a given disk
:param partition_alias: Alias of the partition of a disk (eg: /dev/disk/by-id/scsi-1ATA_TOSHIBA_MK2002TSKB_92M1KDMHF-part1)
:type partition_alias: str
:return: None
"""
all_asds = {}
mountpoint = None
for alias, mtpt in FSTab.read().iteritems():
all_asds.update(ASDController.list_asds(mtpt))
if alias == partition_alias:
mountpoint = mtpt
if mountpoint is None:
raise RuntimeError('Failed to retrieve the mountpoint for partition with alias: {0}'.format(partition_alias))
# Fetch disk information
disk_size = int(ASDController._local_client.run(['df', '-B', '1', '--output=size', mountpoint]).splitlines()[1])
# Find out appropriate disk size
asds = 1.0
for asd_id in os.listdir(mountpoint):
if os.path.isdir('/'.join([mountpoint, asd_id])) and Configuration.exists(ASDController.ASD_CONFIG.format(asd_id)):
asds += 1
asd_size = int(math.floor(disk_size / asds))
for asd_id in os.listdir(mountpoint):
if os.path.isdir('/'.join([mountpoint, asd_id])) and Configuration.exists(ASDController.ASD_CONFIG.format(asd_id)):
config = json.loads(Configuration.get(ASDController.ASD_CONFIG.format(asd_id), raw=True))
config['capacity'] = asd_size
config['rocksdb_block_cache_size'] = int(asd_size / 1024 / 4)
Configuration.set(ASDController.ASD_CONFIG.format(asd_id), json.dumps(config, indent=4), raw=True)
try:
ServiceManager.send_signal(ASDController.ASD_SERVICE_PREFIX.format(asd_id),
signal.SIGUSR1,
ASDController._local_client)
except Exception as ex:
ASDController._logger.info('Could not send signal to ASD for reloading the quota: {0}'.format(ex))
# Prepare & start service
asd_id = ''.join(random.choice(string.ascii_letters + string.digits) for _ in range(32))
ASDController._logger.info('Setting up service for disk {0}'.format(partition_alias))
homedir = '{0}/{1}'.format(mountpoint, asd_id)
base_port = Configuration.get('{0}/network|port'.format(ASDController.CONFIG_ROOT))
ips = Configuration.get('{0}/network|ips'.format(ASDController.CONFIG_ROOT))
used_ports = []
for asd in all_asds.itervalues():
used_ports.append(asd['port'])
if 'rora_port' in asd:
used_ports.append(asd['rora_port'])
asd_port = base_port
rora_port = base_port + 1
while asd_port in used_ports:
asd_port += 1
used_ports.append(asd_port)
while rora_port in used_ports:
rora_port += 1
asd_config = {'home': homedir,
'node_id': ASDController.NODE_ID,
'asd_id': asd_id,
'capacity': asd_size,
'log_level': 'info',
'port': asd_port,
'transport': 'tcp',
'rocksdb_block_cache_size': int(asd_size / 1024 / 4)}
if Configuration.get('/ovs/framework/rdma'):
asd_config['rora_port'] = rora_port
asd_config['rora_transport'] = 'rdma'
if ips is not None and len(ips) > 0:
asd_config['ips'] = ips
if Configuration.exists('{0}/extra'.format(ASDController.CONFIG_ROOT)):
data = Configuration.get('{0}/extra'.format(ASDController.CONFIG_ROOT))
asd_config.update(data)
Configuration.set(ASDController.ASD_CONFIG.format(asd_id), json.dumps(asd_config, indent=4), raw=True)
service_name = ASDController.ASD_SERVICE_PREFIX.format(asd_id)
params = {'CONFIG_PATH': Configuration.get_configuration_path('/ovs/alba/asds/{0}/config'.format(asd_id)),
'SERVICE_NAME': service_name,
'LOG_SINK': LogHandler.get_sink_path('alba_asd')}
os.mkdir(homedir)
ASDController._local_client.run(['chown', '-R', 'alba:alba', homedir])
ServiceManager.add_service('alba-asd', ASDController._local_client, params, service_name)
ASDController.start_asd(asd_id)
