def main(args=None):
'''Print file system statistics to sys.stdout'''
if args is None:
args = sys.argv[1:]
options = parse_args(args)
setup_logging(options)
ctrlfile = assert_fs_owner(options.mountpoint, mountpoint=True)
# Use a decent sized buffer, otherwise the statistics have to be
# calculated thee(!) times because we need to invoce getxattr
# three times.
buf = llfuse.getxattr(ctrlfile, 's3qlstat', size_guess=256)
(entries, blocks, inodes, fs_size, dedup_size,
compr_size, db_size, cache_used, cache_dirty) = struct.unpack('QQQQQQQQQ', buf)
p_dedup = dedup_size * 100 / fs_size if fs_size else 0
p_compr_1 = compr_size * 100 / fs_size if fs_size else 0
p_compr_2 = compr_size * 100 / dedup_size if dedup_size else 0
print ('Directory entries: %d' % entries,
'Inodes: %d' % inodes,
'Data blocks: %d' % blocks,
'Total data size: %s' % pretty_print_size(fs_size),
'After de-duplication: %s (%.2f%% of total)'
% (pretty_print_size(dedup_size), p_dedup),
'After compression: %s (%.2f%% of total, %.2f%% of de-duplicated)'
% (pretty_print_size(compr_size), p_compr_1, p_compr_2),
'Database size: %s (uncompressed)' % pretty_print_size(db_size),
'Cache usage: %s (dirty: %s)' % (pretty_print_size(cache_used),
pretty_print_size(cache_dirty)),
sep='\n')
def blocking_umount(mountpoint):
'''Invoke fusermount and wait for daemon to terminate.'''
with open('/dev/null', 'wb') as devnull:
if subprocess.call(['fuser', '-m', mountpoint], stdout=devnull,
stderr=devnull) == 0:
raise MountInUseError(mountpoint)
ctrlfile = os.path.join(mountpoint, CTRL_NAME)
log.debug('Flushing cache...')
llfuse.setxattr(ctrlfile, 's3ql_flushcache!', b'dummy')
# Get pid
log.debug('Trying to get pid')
pid = parse_literal(llfuse.getxattr(ctrlfile, 's3ql_pid?'), int)
log.debug('PID is %d', pid)
# Get command line to make race conditions less-likely
cmdline = get_cmdline(pid)
# Unmount
log.debug('Unmounting...')
if os.getuid() == 0 or platform.system() == 'Darwin':
# MacOS X always uses umount rather than fusermount
umount_cmd = ['umount', mountpoint]
else:
umount_cmd = ['fusermount', '-u', mountpoint]
if subprocess.call(umount_cmd) != 0:
raise UmountSubError(mountpoint)
# Wait for daemon
log.debug('Uploading metadata...')
step = 0.1
while True:
try:
os.kill(pid, 0)
except OSError:
log.debug('Kill failed, assuming daemon has quit.')
break
# Check that the process did not terminate and the PID
# was reused by a different process
cmdline2 = get_cmdline(pid)
if cmdline2 is None:
log.debug('Reading cmdline failed, assuming daemon has quit.')
break
elif cmdline2 == cmdline:
log.debug('PID still alive and commandline unchanged.')
else:
log.debug('PID still alive, but cmdline changed')
break
# Process still exists, we wait
log.debug('Daemon seems to be alive, waiting...')
time.sleep(step)
if step < 1:
step += 0.1
def main(args=None):
'''Print file system statistics to sys.stdout'''
if args is None:
args = sys.argv[1:]
options = parse_args(args)
setup_logging(options)
ctrlfile = assert_fs_owner(options.mountpoint, mountpoint=True)
# Use a decent sized buffer, otherwise the statistics have to be
# calculated thee(!) times because we need to invoce getxattr
# three times.
buf = llfuse.getxattr(ctrlfile, 's3qlstat', size_guess=256)
(entries, blocks, inodes, fs_size, dedup_size, compr_size,
db_size) = struct.unpack('QQQQQQQ', buf)
p_dedup = dedup_size * 100 / fs_size if fs_size else 0
p_compr_1 = compr_size * 100 / fs_size if fs_size else 0
p_compr_2 = compr_size * 100 / dedup_size if dedup_size else 0
mb = 1024**2
print(
'Directory entries: %d' % entries,
'Inodes: %d' % inodes,
'Data blocks: %d' % blocks,
'Total data size: %.2f MiB' % (fs_size / mb),
'After de-duplication: %.2f MiB (%.2f%% of total)' %
(dedup_size / mb, p_dedup),
'After compression: %.2f MiB (%.2f%% of total, %.2f%% of de-duplicated)'
% (compr_size / mb, p_compr_1, p_compr_2),
'Database size: %.2f MiB (uncompressed)' % (db_size / mb),
'(some values do not take into account not-yet-uploaded dirty blocks in cache)',
sep='\n')
def main(args=None):
'''Print file system statistics to sys.stdout'''
if args is None:
args = sys.argv[1:]
options = parse_args(args)
setup_logging(options)
ctrlfile = assert_fs_owner(options.mountpoint, mountpoint=True)
# Use a decent sized buffer, otherwise the statistics have to be
# calculated thee(!) times because we need to invoce getxattr
# three times.
buf = llfuse.getxattr(ctrlfile, 's3qlstat', size_guess=256)
(entries, blocks, inodes, fs_size, dedup_size,
compr_size, db_size) = struct.unpack('QQQQQQQ', buf)
p_dedup = dedup_size * 100 / fs_size if fs_size else 0
p_compr_1 = compr_size * 100 / fs_size if fs_size else 0
p_compr_2 = compr_size * 100 / dedup_size if dedup_size else 0
mb = 1024 ** 2
print ('Directory entries: %d' % entries,
'Inodes: %d' % inodes,
'Data blocks: %d' % blocks,
'Total data size: %.2f MiB' % (fs_size / mb),
'After de-duplication: %.2f MiB (%.2f%% of total)'
% (dedup_size / mb, p_dedup),
'After compression: %.2f MiB (%.2f%% of total, %.2f%% of de-duplicated)'
% (compr_size / mb, p_compr_1, p_compr_2),
'Database size: %.2f MiB (uncompressed)' % (db_size / mb),
'(some values do not take into account not-yet-uploaded dirty blocks in cache)',
sep='\n')
def main(args=None):
'''Print file system statistics to sys.stdout'''
if args is None:
args = sys.argv[1:]
options = parse_args(args)
setup_logging(options)
ctrlfile = assert_fs_owner(options.mountpoint, mountpoint=True)
# Use a decent sized buffer, otherwise the statistics have to be
# calculated thee(!) times because we need to invoce getxattr
# three times.
buf = llfuse.getxattr(ctrlfile, 's3qlstat', size_guess=256)
(entries, blocks, inodes, fs_size, dedup_size,
compr_size, db_size, cache_used, cache_dirty) = struct.unpack('QQQQQQQQQ', buf)
p_dedup = dedup_size * 100 / fs_size if fs_size else 0
p_compr_1 = compr_size * 100 / fs_size if fs_size else 0
p_compr_2 = compr_size * 100 / dedup_size if dedup_size else 0
print ('Directory entries: %d' % entries,
'Inodes: %d' % inodes,
'Data blocks: %d' % blocks,
'Total data size: %s' % pretty_print_size(fs_size),
'After de-duplication: %s (%.2f%% of total)'
% (pretty_print_size(dedup_size), p_dedup),
'After compression: %s (%.2f%% of total, %.2f%% of de-duplicated)'
% (pretty_print_size(compr_size), p_compr_1, p_compr_2),
'Database size: %s (uncompressed)' % pretty_print_size(db_size),
'Cache usage: %s (dirty: %s)' % (pretty_print_size(cache_used),
pretty_print_size(cache_dirty)),
sep='\n')
def main(args=None):
'''Print file system statistics to sys.stdout'''
if args is None:
args = sys.argv[1:]
options = parse_args(args)
setup_logging(options)
mountpoint = options.mountpoint
# Check if it's a mount point
if not posixpath.ismount(mountpoint):
raise QuietError('%s is not a mount point' % mountpoint)
# Check if it's an S3QL mountpoint
ctrlfile = os.path.join(mountpoint, CTRL_NAME)
if not (CTRL_NAME not in llfuse.listdir(mountpoint)
and os.path.exists(ctrlfile)):
raise QuietError('%s is not a mount point' % mountpoint)
if os.stat(ctrlfile).st_uid != os.geteuid() and os.geteuid() != 0:
raise QuietError('Only root and the mounting user may run s3qlstat.')
# Use a decent sized buffer, otherwise the statistics have to be
# calculated thee(!) times because we need to invoce getxattr
# three times.
buf = llfuse.getxattr(ctrlfile, b's3qlstat', size_guess=256)
(entries, blocks, inodes, fs_size, dedup_size,
compr_size, db_size) = struct.unpack('QQQQQQQ', buf)
p_dedup = dedup_size * 100 / fs_size if fs_size else 0
p_compr_1 = compr_size * 100 / fs_size if fs_size else 0
p_compr_2 = compr_size * 100 / dedup_size if dedup_size else 0
mb = 1024 ** 2
print ('Directory entries: %d' % entries,
'Inodes: %d' % inodes,
'Data blocks: %d' % blocks,
'Total data size: %.2f MiB' % (fs_size / mb),
'After de-duplication: %.2f MiB (%.2f%% of total)'
% (dedup_size / mb, p_dedup),
'After compression: %.2f MiB (%.2f%% of total, %.2f%% of de-duplicated)'
% (compr_size / mb, p_compr_1, p_compr_2),
'Database size: %.2f MiB (uncompressed)' % (db_size / mb),
'(some values do not take into account not-yet-uploaded dirty blocks in cache)',
sep='\n')
def _getxattr_helper(path, name):
try:
value = llfuse.getxattr(path, name)
except OSError as exc:
errno = exc.errno
value = None
if not hasattr(os, 'getxattr'):
return value
try:
value2 = os.getxattr(path, name)
except OSError as exc:
assert exc.errno == errno
else:
assert value2 is not None
assert value2 == value
return value
def _getxattr_helper(path, name):
try:
value = llfuse.getxattr(path, name)
except OSError as exc:
errno = exc.errno
value = None
if not hasattr(os, 'getxattr'):
return value
try:
value2 = os.getxattr(path, name)
except OSError as exc:
assert exc.errno == errno
else:
assert value2 is not None
assert value2 == value
return value
def blocking_umount(mountpoint):
'''Invoke fusermount and wait for daemon to terminate.'''
with open('/dev/null', 'wb') as devnull:
if subprocess.call(['fuser', '-m', mountpoint],
stdout=devnull,
stderr=devnull) == 0:
raise MountInUseError(mountpoint)
ctrlfile = os.path.join(mountpoint, CTRL_NAME)
log.debug('Flushing cache...')
llfuse.setxattr(ctrlfile, 's3ql_flushcache!', b'dummy')
# Get pid
log.debug('Trying to get pid')
pid = parse_literal(llfuse.getxattr(ctrlfile, 's3ql_pid?'), int)
log.debug('PID is %d', pid)
# Get command line to make race conditions less-likely
cmdline = get_cmdline(pid)
# Unmount
log.debug('Unmounting...')
if os.getuid() == 0 or platform.system() == 'Darwin':
# MacOS X always uses umount rather than fusermount
umount_cmd = ['umount', mountpoint]
else:
umount_cmd = ['fusermount', '-u', mountpoint]
if subprocess.call(umount_cmd) != 0:
raise UmountSubError(mountpoint)
# Wait for daemon
log.debug('Uploading metadata...')
step = 0.1
while True:
try:
os.kill(pid, 0)
except OSError:
log.debug('Kill failed, assuming daemon has quit.')
break
# Check that the process did not terminate and the PID
# was reused by a different process
cmdline2 = get_cmdline(pid)
if cmdline2 is None:
log.debug('Reading cmdline failed, assuming daemon has quit.')
break
elif cmdline2 == cmdline:
log.debug('PID still alive and commandline unchanged.')
else:
log.debug('PID still alive, but cmdline changed')
break
# Process still exists, we wait
log.debug('Daemon seems to be alive, waiting...')
time.sleep(step)
if step < 1:
step += 0.1
def blocking_umount(mountpoint):
'''Invoke fusermount and wait for daemon to terminate.'''
devnull = open('/dev/null', 'wb')
if subprocess.call(
['fuser', '-m', mountpoint], stdout=devnull, stderr=devnull
) == 0:
raise MountInUseError(mountpoint)
ctrlfile = os.path.join(mountpoint, CTRL_NAME)
log.debug('Flushing cache...')
llfuse.setxattr(ctrlfile, b's3ql_flushcache!', b'dummy')
# Get pid
log.debug('Trying to get pid')
pid = int(llfuse.getxattr(ctrlfile, b's3ql_pid?'))
log.debug('PID is %d', pid)
# Get command line to make race conditions less-likely
with open('/proc/%d/cmdline' % pid, 'r') as fh:
cmdline = fh.readline()
log.debug('cmdline is %r', cmdline)
# Unmount
log.debug('Unmounting...')
# This seems to be necessary to prevent weird busy errors
time.sleep(3)
if os.getuid() == 0:
umount_cmd = ['umount', mountpoint]
else:
umount_cmd = ['fusermount', '-u', mountpoint]
if subprocess.call(umount_cmd) != 0:
raise UmountError(mountpoint)
# Wait for daemon
log.debug('Uploading metadata...')
step = 0.5
while True:
try:
os.kill(pid, 0)
except OSError:
log.debug('Kill failed, assuming daemon has quit.')
break
# Check that the process did not terminate and the PID
# was reused by a different process
try:
with open('/proc/%d/cmdline' % pid, 'r') as fh:
if fh.readline() != cmdline:
log.debug('PID still alive, but cmdline changed')
# PID must have been reused, original process terminated
break
else:
log.debug('PID still alive and commandline unchanged.')
except OSError:
# Process must have exited by now
log.debug('Reading cmdline failed, assuming daemon has quit.')
break
# Process still exists, we wait
log.debug('Daemon seems to be alive, waiting...')
time.sleep(step)
if step < 10:
step *= 2
