from io import StringIO from tasks.cephfs.fuse_mount import FuseMount from tasks.cephfs.cephfs_test_case import CephFSTestCase from teuthology.exceptions import CommandFailedError from textwrap import dedent from threading import Thread import errno import platform import time import json import logging import os import re log = logging.getLogger(__name__) class TestMisc(CephFSTestCase): CLIENTS_REQUIRED = 2 def test_statfs_on_deleted_fs(self): """ That statfs does not cause monitors to SIGSEGV after fs deletion. """ self.mount_b.umount_wait() self.mount_a.run_shell_payload("stat -f .") self.fs.delete_all_filesystems() # This will hang either way, run in background. p = self.mount_a.run_shell_payload("stat -f .", wait=False, timeout=60, check_status=False) time.sleep(30) self.assertFalse(p.finished) # the process is stuck in uninterruptible sleep, just kill the mount self.mount_a.umount_wait(force=True) p.wait() def test_fuse_mount_on_already_mounted_path(self): if platform.system() != "Linux": self.skipTest("Require Linux platform") if not isinstance(self.mount_a, FuseMount): self.skipTest("Require FUSE client") # Try to mount already mounted path # expecting EBUSY error try: mount_cmd = ['sudo'] + self.mount_a._mount_bin + [self.mount_a.hostfs_mntpt] self.mount_a.client_remote.run(args=mount_cmd, stderr=StringIO(), stdout=StringIO(), timeout=60, omit_sudo=False) except CommandFailedError as e: self.assertEqual(e.exitstatus, errno.EBUSY) else: self.fail("Expected EBUSY") def test_getattr_caps(self): """ Check if MDS recognizes the 'mask' parameter of open request. The parameter allows client to request caps when opening file """ if not isinstance(self.mount_a, FuseMount): self.skipTest("Require FUSE client") # Enable debug. Client will requests CEPH_CAP_XATTR_SHARED # on lookup/open self.mount_b.umount_wait() self.set_conf('client', 'client debug getattr caps', 'true') self.mount_b.mount_wait() # create a file and hold it open. MDS will issue CEPH_CAP_EXCL_* # to mount_a p = self.mount_a.open_background("testfile") self.mount_b.wait_for_visible("testfile") # this triggers a lookup request and an open request. The debug # code will check if lookup/open reply contains xattrs self.mount_b.run_shell(["cat", "testfile"]) self.mount_a.kill_background(p) def test_root_rctime(self): """ Check that the root inode has a non-default rctime on startup. """ t = time.time() rctime = self.mount_a.getfattr(".", "ceph.dir.rctime") log.info("rctime = {}".format(rctime)) self.assertGreaterEqual(float(rctime), t - 10) def test_fs_new(self): self.mount_a.umount_wait() self.mount_b.umount_wait() data_pool_name = self.fs.get_data_pool_name() self.fs.fail() self.fs.mon_manager.raw_cluster_cmd('fs', 'rm', self.fs.name, '--yes-i-really-mean-it') self.fs.mon_manager.raw_cluster_cmd('osd', 'pool', 'delete', self.fs.metadata_pool_name, self.fs.metadata_pool_name, '--yes-i-really-really-mean-it') self.fs.mon_manager.raw_cluster_cmd('osd', 'pool', 'create', self.fs.metadata_pool_name, '--pg_num_min', str(self.fs.pg_num_min)) # insert a garbage object self.fs.radosm(["put", "foo", "-"], stdin=StringIO("bar")) def get_pool_df(fs, name): try: return fs.get_pool_df(name)['objects'] > 0 except RuntimeError: return False self.wait_until_true(lambda: get_pool_df(self.fs, self.fs.metadata_pool_name), timeout=30) try: self.fs.mon_manager.raw_cluster_cmd('fs', 'new', self.fs.name, self.fs.metadata_pool_name, data_pool_name) except CommandFailedError as e: self.assertEqual(e.exitstatus, errno.EINVAL) else: raise AssertionError("Expected EINVAL") self.fs.mon_manager.raw_cluster_cmd('fs', 'new', self.fs.name, self.fs.metadata_pool_name, data_pool_name, "--force") self.fs.mon_manager.raw_cluster_cmd('fs', 'fail', self.fs.name) self.fs.mon_manager.raw_cluster_cmd('fs', 'rm', self.fs.name, '--yes-i-really-mean-it') self.fs.mon_manager.raw_cluster_cmd('osd', 'pool', 'delete', self.fs.metadata_pool_name, self.fs.metadata_pool_name, '--yes-i-really-really-mean-it') self.fs.mon_manager.raw_cluster_cmd('osd', 'pool', 'create', self.fs.metadata_pool_name, '--pg_num_min', str(self.fs.pg_num_min)) self.fs.mon_manager.raw_cluster_cmd('fs', 'new', self.fs.name, self.fs.metadata_pool_name, data_pool_name, '--allow_dangerous_metadata_overlay') def test_cap_revoke_nonresponder(self): """ Check that a client is evicted if it has not responded to cap revoke request for configured number of seconds. """ session_timeout = self.fs.get_var("session_timeout") eviction_timeout = session_timeout / 2.0 self.fs.mds_asok(['config', 'set', 'mds_cap_revoke_eviction_timeout', str(eviction_timeout)]) cap_holder = self.mount_a.open_background() # Wait for the file to be visible from another client, indicating # that mount_a has completed its network ops self.mount_b.wait_for_visible() # Simulate client death self.mount_a.suspend_netns() try: # The waiter should get stuck waiting for the capability # held on the MDS by the now-dead client A cap_waiter = self.mount_b.write_background() a = time.time() time.sleep(eviction_timeout) cap_waiter.wait() b = time.time() cap_waited = b - a log.info("cap_waiter waited {0}s".format(cap_waited)) # check if the cap is transferred before session timeout kicked in. # this is a good enough check to ensure that the client got evicted # by the cap auto evicter rather than transitioning to stale state # and then getting evicted. self.assertLess(cap_waited, session_timeout, "Capability handover took {0}, expected less than {1}".format( cap_waited, session_timeout )) self.assertTrue(self.mds_cluster.is_addr_blocklisted( self.mount_a.get_global_addr())) self.mount_a._kill_background(cap_holder) finally: self.mount_a.resume_netns() def test_filtered_df(self): pool_name = self.fs.get_data_pool_name() raw_df = self.fs.get_pool_df(pool_name) raw_avail = float(raw_df["max_avail"]) out = self.fs.mon_manager.raw_cluster_cmd('osd', 'pool', 'get', pool_name, 'size', '-f', 'json-pretty') _ = json.loads(out) proc = self.mount_a.run_shell(['df', '.']) output = proc.stdout.getvalue() fs_avail = output.split('\n')[1].split()[3] fs_avail = float(fs_avail) * 1024 ratio = raw_avail / fs_avail assert 0.9 < ratio < 1.1 def test_dump_inode(self): info = self.fs.mds_asok(['dump', 'inode', '1']) assert(info['path'] == "/") def test_dump_inode_hexademical(self): self.mount_a.run_shell(["mkdir", "-p", "foo"]) ino = self.mount_a.path_to_ino("foo") assert type(ino) is int info = self.fs.mds_asok(['dump', 'inode', hex(ino)]) assert info['path'] == "/foo" def test_fs_lsflags(self): """ Check that the lsflags displays the default state and the new state of flags """ # Set some flags self.fs.set_joinable(False) self.fs.set_allow_new_snaps(False) self.fs.set_allow_standby_replay(True) lsflags = json.loads(self.fs.mon_manager.raw_cluster_cmd('fs', 'lsflags', self.fs.name, "--format=json-pretty")) self.assertEqual(lsflags["joinable"], False) self.assertEqual(lsflags["allow_snaps"], False) self.assertEqual(lsflags["allow_multimds_snaps"], True) self.assertEqual(lsflags["allow_standby_replay"], True) def _test_sync_stuck_for_around_5s(self, dir_path, file_sync=False): self.mount_a.run_shell(["mkdir", dir_path]) sync_dir_pyscript = dedent(""" import os path = "{path}" dfd = os.open(path, os.O_DIRECTORY) os.fsync(dfd) os.close(dfd) """.format(path=dir_path)) # run create/delete directories and test the sync time duration for i in range(300): for j in range(5): self.mount_a.run_shell(["mkdir", os.path.join(dir_path, f"{i}_{j}")]) start = time.time() if file_sync: self.mount_a.run_shell(['python3', '-c', sync_dir_pyscript]) else: self.mount_a.run_shell(["sync"]) duration = time.time() - start log.info(f"sync mkdir i = {i}, duration = {duration}") self.assertLess(duration, 4) for j in range(5): self.mount_a.run_shell(["rm", "-rf", os.path.join(dir_path, f"{i}_{j}")]) start = time.time() if file_sync: self.mount_a.run_shell(['python3', '-c', sync_dir_pyscript]) else: self.mount_a.run_shell(["sync"]) duration = time.time() - start log.info(f"sync rmdir i = {i}, duration = {duration}") self.assertLess(duration, 4) self.mount_a.run_shell(["rm", "-rf", dir_path]) def test_filesystem_sync_stuck_for_around_5s(self): """ To check whether the fsync will be stuck to wait for the mdlog to be flushed for at most 5 seconds. """ dir_path = "filesystem_sync_do_not_wait_mdlog_testdir" self._test_sync_stuck_for_around_5s(dir_path) def test_file_sync_stuck_for_around_5s(self): """ To check whether the filesystem sync will be stuck to wait for the mdlog to be flushed for at most 5 seconds. """ dir_path = "file_sync_do_not_wait_mdlog_testdir" self._test_sync_stuck_for_around_5s(dir_path, True) def test_file_filesystem_sync_crash(self): """ To check whether the kernel crashes when doing the file/filesystem sync. """ stop_thread = False dir_path = "file_filesystem_sync_crash_testdir" self.mount_a.run_shell(["mkdir", dir_path]) def mkdir_rmdir_thread(mount, path): #global stop_thread log.info(" mkdir_rmdir_thread starting...") num = 0 while not stop_thread: n = num m = num for __ in range(10): mount.run_shell(["mkdir", os.path.join(path, f"{n}")]) n += 1 for __ in range(10): mount.run_shell(["rm", "-rf", os.path.join(path, f"{m}")]) m += 1 num += 10 log.info(" mkdir_rmdir_thread stopped") def filesystem_sync_thread(mount, path): #global stop_thread log.info(" filesystem_sync_thread starting...") while not stop_thread: mount.run_shell(["sync"]) log.info(" filesystem_sync_thread stopped") def file_sync_thread(mount, path): #global stop_thread log.info(" file_sync_thread starting...") pyscript = dedent(""" import os path = "{path}" dfd = os.open(path, os.O_DIRECTORY) os.fsync(dfd) os.close(dfd) """.format(path=path)) while not stop_thread: mount.run_shell(['python3', '-c', pyscript]) log.info(" file_sync_thread stopped") td1 = Thread(target=mkdir_rmdir_thread, args=(self.mount_a, dir_path,)) td2 = Thread(target=filesystem_sync_thread, args=(self.mount_a, dir_path,)) td3 = Thread(target=file_sync_thread, args=(self.mount_a, dir_path,)) td1.start() td2.start() td3.start() time.sleep(1200) # run 20 minutes stop_thread = True td1.join() td2.join() td3.join() self.mount_a.run_shell(["rm", "-rf", dir_path]) def test_dump_inmemory_log_on_client_eviction(self): """ That the in-memory logs are dumped during a client eviction event. """ self.fs.mds_asok(['config', 'set', 'debug_mds', '1/10']) self.fs.mds_asok(['config', 'set', 'mds_extraordinary_events_dump_interval', '1']) mount_a_client_id = self.mount_a.get_global_id() infos = self.fs.status().get_ranks(self.fs.id) #evict the client self.fs.mds_asok(['session', 'evict', "%s" % mount_a_client_id]) time.sleep(10) #wait for 10 seconds for the logs dumping to complete. #The client is evicted, so unmount it. try: self.mount_a.umount_wait(require_clean=True, timeout=30) except: pass #continue with grepping the log eviction_log = f"Evicting (\(and blocklisting\) )?client session {mount_a_client_id} \(.+:.+/.+\)" search_range = "/^--- begin dump of recent events ---$/,/^--- end dump of recent events ---$/p" for info in infos: mds_id = info['name'] try: remote = self.fs.mon_manager.find_remote('mds', mds_id) out = remote.run(args=["sed", "-n", "{0}".format(search_range), f"/var/log/ceph/{self.mount_a.cluster_name}-mds.{mds_id}.log"], stdout=StringIO(), timeout=30) except: continue #continue with the next info if out.stdout and re.search(eviction_log, out.stdout.getvalue().strip()): return self.assertTrue(False, "Failed to dump in-memory logs during client eviction") def test_dump_inmemory_log_on_missed_beacon_ack_from_monitors(self): """ That the in-memory logs are dumped when the mds misses beacon ACKs from monitors. """ self.fs.mds_asok(['config', 'set', 'debug_mds', '1/10']) self.fs.mds_asok(['config', 'set', 'mds_extraordinary_events_dump_interval', '1']) try: mons = json.loads(self.fs.mon_manager.raw_cluster_cmd('mon', 'dump', '-f', 'json'))['mons'] except: self.assertTrue(False, "Error fetching monitors") #Freeze all monitors for mon in mons: mon_name = mon['name'] log.info(f'Sending STOP to mon {mon_name}') self.fs.mon_manager.signal_mon(mon_name, 19) time.sleep(10) #wait for 10 seconds to get the in-memory logs dumped #Unfreeze all monitors for mon in mons: mon_name = mon['name'] log.info(f'Sending CONT to mon {mon_name}') self.fs.mon_manager.signal_mon(mon_name, 18) missed_beacon_ack_log = "missed beacon ack from the monitors" search_range = "/^--- begin dump of recent events ---$/,/^--- end dump of recent events ---$/p" for info in self.fs.status().get_ranks(self.fs.id): mds_id = info['name'] try: remote = self.fs.mon_manager.find_remote('mds', mds_id) out = remote.run(args=["sed", "-n", "{0}".format(search_range), f"/var/log/ceph/{self.mount_a.cluster_name}-mds.{mds_id}.log"], stdout=StringIO(), timeout=30) except: continue #continue with the next info if out.stdout and (missed_beacon_ack_log in out.stdout.getvalue().strip()): return self.assertTrue(False, "Failed to dump in-memory logs during missed beacon ack") def test_dump_inmemory_log_on_missed_internal_heartbeats(self): """ That the in-memory logs are dumped when the mds misses internal heartbeats. """ self.fs.mds_asok(['config', 'set', 'debug_mds', '1/10']) self.fs.mds_asok(['config', 'set', 'mds_heartbeat_grace', '1']) self.fs.mds_asok(['config', 'set', 'mds_extraordinary_events_dump_interval', '1']) try: mons = json.loads(self.fs.mon_manager.raw_cluster_cmd('mon', 'dump', '-f', 'json'))['mons'] except: self.assertTrue(False, "Error fetching monitors") #Freeze all monitors for mon in mons: mon_name = mon['name'] log.info(f'Sending STOP to mon {mon_name}') self.fs.mon_manager.signal_mon(mon_name, 19) time.sleep(10) #wait for 10 seconds to get the in-memory logs dumped #Unfreeze all monitors for mon in mons: mon_name = mon['name'] log.info(f'Sending CONT to mon {mon_name}') self.fs.mon_manager.signal_mon(mon_name, 18) missed_internal_heartbeat_log = \ "Skipping beacon heartbeat to monitors \(last acked .+s ago\); MDS internal heartbeat is not healthy!" search_range = "/^--- begin dump of recent events ---$/,/^--- end dump of recent events ---$/p" for info in self.fs.status().get_ranks(self.fs.id): mds_id = info['name'] try: remote = self.fs.mon_manager.find_remote('mds', mds_id) out = remote.run(args=["sed", "-n", "{0}".format(search_range), f"/var/log/ceph/{self.mount_a.cluster_name}-mds.{mds_id}.log"], stdout=StringIO(), timeout=30) except: continue #continue with the next info if out.stdout and re.search(missed_internal_heartbeat_log, out.stdout.getvalue().strip()): return self.assertTrue(False, "Failed to dump in-memory logs during missed internal heartbeat") class TestCacheDrop(CephFSTestCase): CLIENTS_REQUIRED = 1 def _run_drop_cache_cmd(self, timeout=None): result = None args = ["cache", "drop"] if timeout is not None: args.append(str(timeout)) result = self.fs.rank_tell(args) return result def _setup(self, max_caps=20, threshold=400): # create some files self.mount_a.create_n_files("dc-dir/dc-file", 1000, sync=True) # Reduce this so the MDS doesn't rkcall the maximum for simple tests self.fs.rank_asok(['config', 'set', 'mds_recall_max_caps', str(max_caps)]) self.fs.rank_asok(['config', 'set', 'mds_recall_max_decay_threshold', str(threshold)]) def test_drop_cache_command(self): """ Basic test for checking drop cache command. Confirm it halts without a timeout. Note that the cache size post trimming is not checked here. """ mds_min_caps_per_client = int(self.fs.get_config("mds_min_caps_per_client")) self._setup() result = self._run_drop_cache_cmd() self.assertEqual(result['client_recall']['return_code'], 0) self.assertEqual(result['flush_journal']['return_code'], 0) # It should take at least 1 second self.assertGreater(result['duration'], 1) self.assertGreaterEqual(result['trim_cache']['trimmed'], 1000-2*mds_min_caps_per_client) def test_drop_cache_command_timeout(self): """ Basic test for checking drop cache command. Confirm recall halts early via a timeout. Note that the cache size post trimming is not checked here. """ self._setup() result = self._run_drop_cache_cmd(timeout=10) self.assertEqual(result['client_recall']['return_code'], -errno.ETIMEDOUT) self.assertEqual(result['flush_journal']['return_code'], 0) self.assertGreater(result['duration'], 10) self.assertGreaterEqual(result['trim_cache']['trimmed'], 100) # we did something, right? def test_drop_cache_command_dead_timeout(self): """ Check drop cache command with non-responding client using tell interface. Note that the cache size post trimming is not checked here. """ self._setup() self.mount_a.suspend_netns() # Note: recall is subject to the timeout. The journal flush will # be delayed due to the client being dead. result = self._run_drop_cache_cmd(timeout=5) self.assertEqual(result['client_recall']['return_code'], -errno.ETIMEDOUT) self.assertEqual(result['flush_journal']['return_code'], 0) self.assertGreater(result['duration'], 5) self.assertLess(result['duration'], 120) # Note: result['trim_cache']['trimmed'] may be >0 because dropping the # cache now causes the Locker to drive eviction of stale clients (a # stale session will be autoclosed at mdsmap['session_timeout']). The # particular operation causing this is journal flush which causes the # MDS to wait wait for cap revoke. #self.assertEqual(0, result['trim_cache']['trimmed']) self.mount_a.resume_netns() def test_drop_cache_command_dead(self): """ Check drop cache command with non-responding client using tell interface. Note that the cache size post trimming is not checked here. """ self._setup() self.mount_a.suspend_netns() result = self._run_drop_cache_cmd() self.assertEqual(result['client_recall']['return_code'], 0) self.assertEqual(result['flush_journal']['return_code'], 0) self.assertGreater(result['duration'], 5) self.assertLess(result['duration'], 120) # Note: result['trim_cache']['trimmed'] may be >0 because dropping the # cache now causes the Locker to drive eviction of stale clients (a # stale session will be autoclosed at mdsmap['session_timeout']). The # particular operation causing this is journal flush which causes the # MDS to wait wait for cap revoke. self.mount_a.resume_netns()