def pre(self):
"""Setup prior to running backup
This method can do anything useful and is generally
used to setup a common resource potentially used
by both estimate_size() and backup()/dryrun()
"""
# setup client
self.client = AutoMySQLClient(read_default_group='client',
charset='utf8')
self.datadir = self.client.show_variable('datadir')
try:
os.stat(os.path.join(self.datadir, 'mysql', 'user.frm'))
except OSError:
raise BackupError("Unable to access '%s'. "
"You may need to run this plugin as a more "
"privileged user in order to copy the raw MySQL "
"datadir" % self.datadir)
def pre(self):
"""Setup prior to running backup
This method can do anything useful and is generally
used to setup a common resource potentially used
by both estimate_size() and backup()/dryrun()
"""
# setup client
self.client = AutoMySQLClient(read_default_group='client', charset='utf8')
self.datadir = self.client.show_variable('datadir')
try:
os.stat(os.path.join(self.datadir, 'mysql', 'user.frm'))
except OSError:
raise BackupError("Unable to access '%s'. "
"You may need to run this plugin as a more "
"privileged user in order to copy the raw MySQL "
"datadir" % self.datadir)
class WarmTuna(BackupPlugin):
"""Backup Plugin interface for warmtuna"""
def __init__(self, name):
self.name = name
self.config = None
def pre(self):
"""Setup prior to running backup
This method can do anything useful and is generally
used to setup a common resource potentially used
by both estimate_size() and backup()/dryrun()
"""
# setup client
self.client = AutoMySQLClient(read_default_group='client',
charset='utf8')
self.datadir = self.client.show_variable('datadir')
try:
os.stat(os.path.join(self.datadir, 'mysql', 'user.frm'))
except OSError:
raise BackupError("Unable to access '%s'. "
"You may need to run this plugin as a more "
"privileged user in order to copy the raw MySQL "
"datadir" % self.datadir)
def estimate(self):
"""Calculate the backup size
This should be a best-effort guesstimate by the
plugin at how large the final backup size will be.
A naive plugin can simply return 0 here, but a more
accurate estimate can be useful
"""
size = 0
for path in walk_datafiles(self.datadir):
size += os.stat(path).st_size
return size
def backup(self):
"""Perform a backup"""
datafiles, iterable = itertools.tee(walk_datafiles(self.datadir))
tablenames = filenames_to_tablenames(iter_basenames(iterable),
self.client)
for path, (basename,
tablename) in itertools.izip(datafiles, tablenames):
LOG.info("Archiving %s (%s)", path, tablename)
def dryrun(self):
"""Dry-run through the backup process"""
datafiles, iterable = itertools.tee(walk_datafiles(self.datadir))
tablenames = filenames_to_tablenames(iter_basenames(iterable),
self.client)
for path, (basename,
tablename) in itertools.izip(datafiles, tablenames):
LOG.info("Archiving %s (%s)", path, tablename)
def post(self):
"""Teardown any resources configured by the plugin
This method will be called even if backup fails, provided
that holland itself has not been terminated
"""
self.client.close()
def cleanup(self):
"""Cleanup a previous backup run
This method is called by an explicit cleanup request.
For instance, if a snapshot was created on a previous run
this may be called to allow the plugin to free that resource.
"""
#@classmethod
def configspec(cls):
"""Provide a specification for the configuration this plugin supports
This spec can be used by external commands to generate a new
configuration or validate an existing configuration.
This method should return a holland.core.config.Configspec instance
"""
return Configspec.parse(CONFIGSPEC)
configspec = classmethod(configspec)
#@classmethod
def plugin_info(cls):
return dict(name='warmtuna',
summary='mysql warm backup plugin for holland',
description='''''',
version='1.0',
api_version='1.1.0')
plugin_info = classmethod(plugin_info)
class WarmTuna(BackupPlugin):
"""Backup Plugin interface for warmtuna"""
def __init__(self, name):
self.name = name
self.config = None
def pre(self):
"""Setup prior to running backup
This method can do anything useful and is generally
used to setup a common resource potentially used
by both estimate_size() and backup()/dryrun()
"""
# setup client
self.client = AutoMySQLClient(read_default_group='client', charset='utf8')
self.datadir = self.client.show_variable('datadir')
try:
os.stat(os.path.join(self.datadir, 'mysql', 'user.frm'))
except OSError:
raise BackupError("Unable to access '%s'. "
"You may need to run this plugin as a more "
"privileged user in order to copy the raw MySQL "
"datadir" % self.datadir)
def estimate(self):
"""Calculate the backup size
This should be a best-effort guesstimate by the
plugin at how large the final backup size will be.
A naive plugin can simply return 0 here, but a more
accurate estimate can be useful
"""
size = 0
for path in walk_datafiles(self.datadir):
size += os.stat(path).st_size
return size
def backup(self):
"""Perform a backup"""
datafiles, iterable = itertools.tee(walk_datafiles(self.datadir))
tablenames = filenames_to_tablenames(iter_basenames(iterable), self.client)
for path, (basename, tablename) in itertools.izip(datafiles, tablenames):
LOG.info("Archiving %s (%s)", path, tablename)
def dryrun(self):
"""Dry-run through the backup process"""
datafiles, iterable = itertools.tee(walk_datafiles(self.datadir))
tablenames = filenames_to_tablenames(iter_basenames(iterable), self.client)
for path, (basename, tablename) in itertools.izip(datafiles, tablenames):
LOG.info("Archiving %s (%s)", path, tablename)
def post(self):
"""Teardown any resources configured by the plugin
This method will be called even if backup fails, provided
that holland itself has not been terminated
"""
self.client.close()
def cleanup(self):
"""Cleanup a previous backup run
This method is called by an explicit cleanup request.
For instance, if a snapshot was created on a previous run
this may be called to allow the plugin to free that resource.
"""
#@classmethod
def configspec(cls):
"""Provide a specification for the configuration this plugin supports
This spec can be used by external commands to generate a new
configuration or validate an existing configuration.
This method should return a holland.core.config.Configspec instance
"""
return Configspec.parse(
CONFIGSPEC
)
configspec = classmethod(configspec)
#@classmethod
def plugin_info(cls):
return dict(
name='warmtuna',
summary='mysql warm backup plugin for holland',
description='''''',
version='1.0',
api_version='1.1.0'
)
plugin_info = classmethod(plugin_info)
