def __init__(self, name, config, target_directory, dry_run=False):
self.name = name
self.config = config
self.target_directory = target_directory
self.dry_run = dry_run
self.config.validate_config(self.CONFIGSPEC) # -> ValidationError
# Setup a discovery shell to find schema items
# This will iterate over items during the estimate
# or backup phase, which will call schema.refresh()
self.schema = MySQLSchema()
config = self.config["mysqldump"]
self.schema.add_database_filter(include_glob(*config["databases"]))
self.schema.add_database_filter(
exclude_glob(*config["exclude-databases"]))
self.schema.add_table_filter(include_glob_qualified(*config["tables"]))
self.schema.add_table_filter(
exclude_glob_qualified(*config["exclude-tables"]))
self.schema.add_engine_filter(include_glob(*config["engines"]))
self.schema.add_engine_filter(exclude_glob(*config["exclude-engines"]))
self.mysql_config = build_mysql_config(self.config["mysql:client"])
self.client = connect(self.mysql_config["client"])
self.mock_env = None
def estimate_backup_size(self):
"""Estimate the size of the backup this plugin will produce"""
try:
mysql_config = build_mysql_config(self.config['mysql:client'])
client = connect(mysql_config['client'])
datadir = client.show_variable('datadir')
return directory_size(datadir)
except MySQLError, exc:
raise BackupError("Failed to lookup the MySQL datadir when "
"estimating backup size: [%d] %s" % exc.args)
def estimate_backup_size(self):
"""Estimate the size of the backup this plugin will produce"""
try:
mysql_config = build_mysql_config(self.config['mysql:client'])
client = connect(mysql_config['client'])
datadir = client.show_variable('datadir')
return directory_size(datadir)
except MySQLError, exc:
raise BackupError("Failed to lookup the MySQL datadir when "
"estimating backup size: [%d] %s" % exc.args)
def estimate_backup_size(self):
"""Return estimated backup size"""
mysql_config = build_mysql_config(self.config["mysql:client"])
client = connect(mysql_config["client"])
try:
datadir = client.show_variable("datadir")
return directory_size(datadir)
except OSError as exc:
raise BackupError("Failed to calculate directory size: [%d] %s" %
(exc.errno, exc.strerror))
finally:
client.close()
def __init__(self, name, config, target_directory, dry_run=False):
self.name = name
self.config = config
self.target_directory = target_directory
if dry_run:
LOG.info("Dry-run mode")
self.dry_run = dry_run
self.config.validate_config(CONFIGSPEC)
# Setup MySQL connection objects
self.schema = MySQLSchema()
config = self.config['mysqlhotcopy']
self.mysql_config = build_mysql_config(self.config['mysql:client'])
self.client = connect(self.mysql_config['client'])
def backup(self):
"""Run a database backup with xtrabackup"""
defaults_file = os.path.join(self.target_directory,
'my.xtrabackup.cnf')
args = [
self.config['xtrabackup']['innobackupex'],
'--defaults-file=%s' % defaults_file,
'--stream=tar4ibd',
tempfile.gettempdir(),
]
if self.config['xtrabackup']['slave-info']:
args.insert(3, '--slave-info')
if self.config['xtrabackup']['no-lock']:
args.insert(2, '--no-lock')
LOG.info("%s", list2cmdline(args))
if self.dry_run:
return
config = build_mysql_config(self.config['mysql:client'])
write_options(config, defaults_file)
shutil.copyfileobj(
open(self.config['xtrabackup']['global-defaults'], 'r'),
open(defaults_file, 'a'))
backup_path = os.path.join(self.target_directory, 'backup.tar')
compression_stream = open_stream(backup_path, 'w',
**self.config['compression'])
error_log_path = os.path.join(self.target_directory, 'xtrabackup.log')
error_log = open(error_log_path, 'wb')
try:
try:
check_call(args,
stdout=compression_stream,
stderr=error_log,
close_fds=True)
except OSError, exc:
LOG.info("Command not found: %s", args[0])
raise BackupError("%s not found. Is xtrabackup installed?" %
args[0])
except CalledProcessError, exc:
LOG.info("%s failed", list2cmdline(exc.cmd))
for line in open(error_log_path, 'r'):
if line.startswith('>>'):
continue
LOG.info("%s", line.rstrip())
raise BackupError("%s failed" % exc.cmd[0])
def backup(self):
"""Run a database backup with xtrabackup"""
defaults_file = os.path.join(self.target_directory, 'my.xtrabackup.cnf')
args = [
self.config['xtrabackup']['innobackupex'],
'--defaults-file=%s' % defaults_file,
'--stream=tar4ibd',
tempfile.gettempdir(),
]
if self.config['xtrabackup']['slave-info']:
args.insert(3, '--slave-info')
if self.config['xtrabackup']['no-lock']:
args.insert(2, '--no-lock')
LOG.info("%s", list2cmdline(args))
if self.dry_run:
return
config = build_mysql_config(self.config['mysql:client'])
write_options(config, defaults_file)
shutil.copyfileobj(open(self.config['xtrabackup']['global-defaults'], 'r'),
open(defaults_file, 'a'))
backup_path = os.path.join(self.target_directory, 'backup.tar')
compression_stream = open_stream(backup_path, 'w',
**self.config['compression'])
error_log_path = os.path.join(self.target_directory, 'xtrabackup.log')
error_log = open(error_log_path, 'wb')
try:
try:
check_call(args,
stdout=compression_stream,
stderr=error_log,
close_fds=True)
except OSError, exc:
LOG.info("Command not found: %s", args[0])
raise BackupError("%s not found. Is xtrabackup installed?" %
args[0])
except CalledProcessError, exc:
LOG.info("%s failed", list2cmdline(exc.cmd))
for line in open(error_log_path, 'r'):
if line.startswith('>>'):
continue
LOG.info("%s", line.rstrip())
raise BackupError("%s failed" % exc.cmd[0])
def __init__(self, name, config, target_directory, dry_run=False):
self.name = name
self.config = config
self.target_directory = target_directory
self.dry_run = dry_run
self.config.validate_config(self.CONFIGSPEC) # -> ValidationError
# Setup a discovery shell to find schema items
# This will iterate over items during the estimate
# or backup phase, which will call schema.refresh()
self.schema = MySQLSchema()
config = self.config["mysqldump"]
self.schema.add_database_filter(include_glob(*config["databases"]))
self.schema.add_database_filter(exclude_glob(*config["exclude-databases"]))
self.schema.add_table_filter(include_glob_qualified(*config["tables"]))
self.schema.add_table_filter(exclude_glob_qualified(*config["exclude-tables"]))
self.schema.add_engine_filter(include_glob(*config["engines"]))
self.schema.add_engine_filter(exclude_glob(*config["exclude-engines"]))
self.mysql_config = build_mysql_config(self.config["mysql:client"])
self.client = connect(self.mysql_config["client"])
