mirror of
https://github.com/ceph/ceph
synced 2024-12-22 11:31:55 +00:00
bf13a4e062
This tests the new #9883 repair functionality where we selectively scrape dentries out of the journal while the MDS is offline. Signed-off-by: John Spray <john.spray@redhat.com>
369 lines
11 KiB
Python
369 lines
11 KiB
Python
from contextlib import contextmanager
|
|
from cStringIO import StringIO
|
|
import logging
|
|
import datetime
|
|
import time
|
|
from textwrap import dedent
|
|
import os
|
|
from StringIO import StringIO
|
|
from teuthology.orchestra import run
|
|
from teuthology.orchestra.run import CommandFailedError, ConnectionLostError
|
|
|
|
log = logging.getLogger(__name__)
|
|
|
|
|
|
class CephFSMount(object):
|
|
def __init__(self, test_dir, client_id, client_remote):
|
|
"""
|
|
:param test_dir: Global teuthology test dir
|
|
:param client_id: Client ID, the 'foo' in client.foo
|
|
:param client_remote: Remote instance for the host where client will run
|
|
"""
|
|
|
|
self.test_dir = test_dir
|
|
self.client_id = client_id
|
|
self.client_remote = client_remote
|
|
|
|
self.mountpoint = os.path.join(self.test_dir, 'mnt.{id}'.format(id=self.client_id))
|
|
self.test_files = ['a', 'b', 'c']
|
|
|
|
self.background_procs = []
|
|
|
|
def is_mounted(self):
|
|
raise NotImplementedError()
|
|
|
|
def mount(self):
|
|
raise NotImplementedError()
|
|
|
|
def umount(self):
|
|
raise NotImplementedError()
|
|
|
|
def umount_wait(self, force=False):
|
|
raise NotImplementedError()
|
|
|
|
def kill_cleanup(self):
|
|
raise NotImplementedError()
|
|
|
|
def kill(self):
|
|
raise NotImplementedError()
|
|
|
|
def cleanup(self):
|
|
raise NotImplementedError()
|
|
|
|
def wait_until_mounted(self):
|
|
raise NotImplementedError()
|
|
|
|
@contextmanager
|
|
def mounted(self):
|
|
"""
|
|
A context manager, from an initially unmounted state, to mount
|
|
this, yield, and then unmount and clean up.
|
|
"""
|
|
self.mount()
|
|
self.wait_until_mounted()
|
|
try:
|
|
yield
|
|
finally:
|
|
self.umount_wait()
|
|
|
|
def create_files(self):
|
|
assert(self.is_mounted())
|
|
|
|
for suffix in self.test_files:
|
|
log.info("Creating file {0}".format(suffix))
|
|
self.client_remote.run(args=[
|
|
'sudo', 'touch', os.path.join(self.mountpoint, suffix)
|
|
])
|
|
|
|
def check_files(self):
|
|
assert(self.is_mounted())
|
|
|
|
for suffix in self.test_files:
|
|
log.info("Checking file {0}".format(suffix))
|
|
r = self.client_remote.run(args=[
|
|
'sudo', 'ls', os.path.join(self.mountpoint, suffix)
|
|
], check_status=False)
|
|
if r.exitstatus != 0:
|
|
raise RuntimeError("Expected file {0} not found".format(suffix))
|
|
|
|
def create_destroy(self):
|
|
assert(self.is_mounted())
|
|
|
|
filename = "{0} {1}".format(datetime.datetime.now(), self.client_id)
|
|
log.debug("Creating test file {0}".format(filename))
|
|
self.client_remote.run(args=[
|
|
'sudo', 'touch', os.path.join(self.mountpoint, filename)
|
|
])
|
|
log.debug("Deleting test file {0}".format(filename))
|
|
self.client_remote.run(args=[
|
|
'sudo', 'rm', '-f', os.path.join(self.mountpoint, filename)
|
|
])
|
|
|
|
def _run_python(self, pyscript):
|
|
return self.client_remote.run(args=[
|
|
'sudo', 'adjust-ulimits', 'daemon-helper', 'kill', 'python', '-c', pyscript
|
|
], wait=False, stdin=run.PIPE, stdout=StringIO())
|
|
|
|
def run_python(self, pyscript):
|
|
p = self._run_python(pyscript)
|
|
p.wait()
|
|
|
|
def run_shell(self, args, wait=True):
|
|
args = ["cd", self.mountpoint, run.Raw('&&')] + args
|
|
return self.client_remote.run(args=args, stdout=StringIO(), wait=wait)
|
|
|
|
def open_no_data(self, basename):
|
|
"""
|
|
A pure metadata operation
|
|
"""
|
|
assert(self.is_mounted())
|
|
|
|
path = os.path.join(self.mountpoint, basename)
|
|
|
|
p = self._run_python(dedent(
|
|
"""
|
|
f = open("{path}", 'w')
|
|
""".format(path=path)
|
|
))
|
|
p.wait()
|
|
|
|
def open_background(self, basename="background_file"):
|
|
"""
|
|
Open a file for writing, then block such that the client
|
|
will hold a capability
|
|
"""
|
|
assert(self.is_mounted())
|
|
|
|
path = os.path.join(self.mountpoint, basename)
|
|
|
|
pyscript = dedent("""
|
|
import time
|
|
|
|
f = open("{path}", 'w')
|
|
f.write('content')
|
|
f.flush()
|
|
f.write('content2')
|
|
while True:
|
|
time.sleep(1)
|
|
""").format(path=path)
|
|
|
|
rproc = self._run_python(pyscript)
|
|
self.background_procs.append(rproc)
|
|
return rproc
|
|
|
|
def wait_for_visible(self, basename="background_file", timeout=30):
|
|
i = 0
|
|
while i < timeout:
|
|
r = self.client_remote.run(args=[
|
|
'sudo', 'ls', os.path.join(self.mountpoint, basename)
|
|
], check_status=False)
|
|
if r.exitstatus == 0:
|
|
log.debug("File {0} became visible from {1} after {2}s".format(
|
|
basename, self.client_id, i))
|
|
return
|
|
else:
|
|
time.sleep(1)
|
|
i += 1
|
|
|
|
raise RuntimeError("Timed out after {0}s waiting for {1} to become visible from {2}".format(
|
|
i, basename, self.client_id))
|
|
|
|
def lock_background(self, basename="background_file"):
|
|
"""
|
|
Open and lock a files for writing, hold the lock in a background process
|
|
"""
|
|
assert(self.is_mounted())
|
|
|
|
path = os.path.join(self.mountpoint, basename)
|
|
|
|
pyscript = dedent("""
|
|
import time
|
|
import fcntl
|
|
import struct
|
|
|
|
f1 = open("{path}-1", 'w')
|
|
fcntl.flock(f1, fcntl.LOCK_EX | fcntl.LOCK_NB)
|
|
|
|
f2 = open("{path}-2", 'w')
|
|
lockdata = struct.pack('hhllhh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)
|
|
fcntl.fcntl(f2, fcntl.F_SETLK, lockdata)
|
|
while True:
|
|
time.sleep(1)
|
|
""").format(path=path)
|
|
|
|
log.info("lock file {0}".format(basename))
|
|
rproc = self._run_python(pyscript)
|
|
self.background_procs.append(rproc)
|
|
return rproc
|
|
|
|
def check_filelock(self, basename="background_file"):
|
|
assert(self.is_mounted())
|
|
|
|
path = os.path.join(self.mountpoint, basename)
|
|
|
|
pyscript = dedent("""
|
|
import fcntl
|
|
import errno
|
|
import struct
|
|
|
|
f1 = open("{path}-1", 'r')
|
|
try:
|
|
fcntl.flock(f1, fcntl.LOCK_EX | fcntl.LOCK_NB)
|
|
except IOError, e:
|
|
if e.errno == errno.EAGAIN:
|
|
pass
|
|
else:
|
|
raise RuntimeError("flock on file {path}-1 not found")
|
|
|
|
f2 = open("{path}-2", 'r')
|
|
try:
|
|
lockdata = struct.pack('hhllhh', fcntl.F_WRLCK, 0, 0, 0, 0, 0)
|
|
fcntl.fcntl(f2, fcntl.F_SETLK, lockdata)
|
|
except IOError, e:
|
|
if e.errno == errno.EAGAIN:
|
|
pass
|
|
else:
|
|
raise RuntimeError("posix lock on file {path}-2 not found")
|
|
""").format(path=path)
|
|
|
|
log.info("check lock on file {0}".format(basename))
|
|
r = self.client_remote.run(args=[
|
|
'sudo', 'python', '-c', pyscript
|
|
])
|
|
|
|
def write_background(self, basename="background_file", loop=False):
|
|
"""
|
|
Open a file for writing, complete as soon as you can
|
|
:param basename:
|
|
:return:
|
|
"""
|
|
assert(self.is_mounted())
|
|
|
|
path = os.path.join(self.mountpoint, basename)
|
|
|
|
pyscript = dedent("""
|
|
import os
|
|
import time
|
|
|
|
fd = os.open("{path}", os.O_RDWR | os.O_CREAT, 0644)
|
|
try:
|
|
while True:
|
|
os.write(fd, 'content')
|
|
time.sleep(1)
|
|
if not {loop}:
|
|
break
|
|
except IOError, e:
|
|
pass
|
|
os.close(fd)
|
|
""").format(path=path, loop=str(loop))
|
|
|
|
rproc = self._run_python(pyscript)
|
|
self.background_procs.append(rproc)
|
|
return rproc
|
|
|
|
def write_n_mb(self, filename, n_mb, seek=0):
|
|
"""
|
|
Write the requested number of megabytes to a file
|
|
"""
|
|
assert(self.is_mounted())
|
|
|
|
self.run_shell(["dd", "if=/dev/urandom", "of={0}".format(filename),
|
|
"bs=1M",
|
|
"count={0}".format(n_mb),
|
|
"seek={0}".format(seek)
|
|
])
|
|
|
|
def open_n_background(self, fs_path, count):
|
|
"""
|
|
Open N files for writing, hold them open in a background process
|
|
|
|
:param fs_path: Path relative to CephFS root, e.g. "foo/bar"
|
|
:return: a RemoteProcess
|
|
"""
|
|
assert(self.is_mounted())
|
|
|
|
abs_path = os.path.join(self.mountpoint, fs_path)
|
|
|
|
pyscript = dedent("""
|
|
import sys
|
|
import time
|
|
import os
|
|
|
|
n = {count}
|
|
abs_path = "{abs_path}"
|
|
|
|
if not os.path.exists(os.path.dirname(abs_path)):
|
|
os.makedirs(os.path.dirname(abs_path))
|
|
|
|
handles = []
|
|
for i in range(0, n):
|
|
fname = "{{0}}_{{1}}".format(abs_path, i)
|
|
handles.append(open(fname, 'w'))
|
|
|
|
while True:
|
|
time.sleep(1)
|
|
""").format(abs_path=abs_path, count=count)
|
|
|
|
rproc = self._run_python(pyscript)
|
|
self.background_procs.append(rproc)
|
|
return rproc
|
|
|
|
def teardown(self):
|
|
for p in self.background_procs:
|
|
log.info("Terminating background process")
|
|
if p.stdin:
|
|
p.stdin.close()
|
|
try:
|
|
p.wait()
|
|
except (CommandFailedError, ConnectionLostError):
|
|
pass
|
|
|
|
def spam_dir_background(self, path):
|
|
"""
|
|
Create directory `path` and do lots of metadata operations
|
|
in it until further notice.
|
|
"""
|
|
assert(self.is_mounted())
|
|
abs_path = os.path.join(self.mountpoint, path)
|
|
|
|
pyscript = dedent("""
|
|
import sys
|
|
import time
|
|
import os
|
|
|
|
abs_path = "{abs_path}"
|
|
|
|
if not os.path.exists(abs_path):
|
|
os.makedirs(abs_path)
|
|
|
|
n = 0
|
|
while True:
|
|
file_path = os.path.join(abs_path, "tmp%d" % n)
|
|
f = open(file_path, 'w')
|
|
f.close()
|
|
n = n + 1
|
|
""").format(abs_path=abs_path)
|
|
|
|
rproc = self._run_python(pyscript)
|
|
self.background_procs.append(rproc)
|
|
return rproc
|
|
|
|
def get_global_id(self):
|
|
raise NotImplementedError()
|
|
|
|
def get_osd_epoch(self):
|
|
raise NotImplementedError()
|
|
|
|
def path_to_ino(self, fs_path):
|
|
abs_path = os.path.join(self.mountpoint, fs_path)
|
|
|
|
pyscript = dedent("""
|
|
import os
|
|
import stat
|
|
|
|
print os.stat("{path}").st_ino
|
|
""").format(path=abs_path)
|
|
proc = self._run_python(pyscript)
|
|
proc.wait()
|
|
return int(proc.stdout.getvalue().strip())
|