def check_innodb(pathinfo, ensure_subdir_of_datadir=False):
"""Check that all tablespaces are in the datadir and filesystem"""
is_unsafe_for_lvm = False
is_unsafe_for_physical_backups = False
datadir = realpath(pathinfo.datadir)
datadir_mp = getmount(datadir)
for tablespace in pathinfo.walk_innodb_shared_tablespaces():
space_mp = getmount(tablespace)
if space_mp != datadir_mp:
LOG.error(
"InnoDB shared tablespace %s is not on the same " "filesystem as the datadir %s",
tablespace,
datadir,
)
is_unsafe_for_lvm = True
if ensure_subdir_of_datadir and not is_subdir(tablespace, datadir):
LOG.error(
"InnoDB shared tablespace %s is not within a " "subdirectory of the datadir %s.",
tablespace,
datadir,
)
is_unsafe_for_physical_backups = True
ib_logdir = pathinfo.get_innodb_logdir()
ib_logdir_mp = getmount(ib_logdir)
if ib_logdir_mp != datadir_mp:
LOG.error(
"innodb-log-group-home-dir %s is not on the same filesystem " "as the MySQL datadir %s",
ib_logdir,
datadir,
)
is_unsafe_for_lvm = True
if ensure_subdir_of_datadir and not is_subdir(ib_logdir, datadir):
LOG.error(
"innodb-log-group-home-dir %s is not a subdirectory of " "the datadir %s.",
ib_logdir,
datadir,
)
is_unsafe_for_physical_backups = True
if is_unsafe_for_lvm:
raise BackupError(
"One or more InnoDB file paths are not on the same "
"logical volume as the datadir. This is unsafe for "
"LVM snapshot backups."
)
if is_unsafe_for_physical_backups:
raise BackupError(
"One or more InnoDB files are not contained within "
"the MySQL datadir. A consistent filesystem backup "
"is not supported with this configuration in the "
"current plugin version."
)
def check_innodb(pathinfo, ensure_subdir_of_datadir=False):
"""Check that all tablespaces are in the datadir and filesystem"""
is_unsafe_for_lvm = False
is_unsafe_for_physical_backups = False
datadir = realpath(pathinfo.datadir)
datadir_mp = getmount(datadir)
for tablespace in pathinfo.walk_innodb_shared_tablespaces():
space_mp = getmount(tablespace)
if space_mp != datadir_mp:
LOG.error(
"InnoDB shared tablespace %s is not on the same "
"filesystem as the datadir %s",
tablespace,
datadir,
)
is_unsafe_for_lvm = True
if ensure_subdir_of_datadir and not is_subdir(tablespace, datadir):
LOG.error(
"InnoDB shared tablespace %s is not within a "
"subdirectory of the datadir %s.",
tablespace,
datadir,
)
is_unsafe_for_physical_backups = True
ib_logdir = pathinfo.get_innodb_logdir()
ib_logdir_mp = getmount(ib_logdir)
if ib_logdir_mp != datadir_mp:
LOG.error(
"innodb-log-group-home-dir %s is not on the same filesystem "
"as the MySQL datadir %s",
ib_logdir,
datadir,
)
is_unsafe_for_lvm = True
if ensure_subdir_of_datadir and not is_subdir(ib_logdir, datadir):
LOG.error(
"innodb-log-group-home-dir %s is not a subdirectory of "
"the datadir %s.",
ib_logdir,
datadir,
)
is_unsafe_for_physical_backups = True
if is_unsafe_for_lvm:
raise BackupError("One or more InnoDB file paths are not on the same "
"logical volume as the datadir. This is unsafe for "
"LVM snapshot backups.")
if is_unsafe_for_physical_backups:
raise BackupError("One or more InnoDB files are not contained within "
"the MySQL datadir. A consistent filesystem backup "
"is not supported with this configuration in the "
"current plugin version.")
def remap_path(path, mountpoint):
"""Remap a path to a new mountpoint
>>> remap_path('/mnt/raid10/foo/bar/baz', '/mnt/snapshot')
'/mnt/snapshot/foo/bar/baz'
"""
rpath = relpath(path, getmount(path))
return os.path.join(mountpoint, rpath)
def remap_path(path, mountpoint):
"""Remap a path to a new mountpoint
>>> remap_path('/mnt/raid10/foo/bar/baz', '/mnt/snapshot')
'/mnt/snapshot/foo/bar/baz'
"""
rpath = relpath(path, getmount(path))
return os.path.join(mountpoint, rpath)
def report_low_space(event, entry):
total_space = disk_capacity(entry.path)
free_space = disk_free(entry.path)
if free_space < 0.10 * total_space:
LOG.warning("Extremely low free space on %s's filesystem (%s).",
entry.path, getmount(entry.path))
LOG.warning("%s of %s [%.2f%%] remaining", format_bytes(free_space),
format_bytes(total_space),
(float(free_space) / total_space) * 100)
def report_low_space(event, entry):
total_space = disk_capacity(entry.path)
free_space = disk_free(entry.path)
if free_space < 0.10 * total_space:
LOG.warning("Extremely low free space on %s's filesystem (%s).", entry.path, getmount(entry.path))
LOG.warning(
"%s of %s [%.2f%%] remaining",
format_bytes(free_space),
format_bytes(total_space),
(float(free_space) / total_space) * 100,
)
