class TestReferentInode(CephFSTestCase):
MDSS_REQUIRED = 1
CLIENTS_REQUIRED = 1
- ALLOW_REFERENT_INODES = True
def get_mdc_stat(self, name, mds_id=None):
return self.get_stat("mds_cache", name, mds_id)
def verify_referent_inode_list_on_disk(self, p_dir, p_file, s_dir, s_file):
p_dir_ino = self.mount_a.path_to_ino(p_dir)
primary_inode = self.fs.read_meta_inode(p_dir_ino, p_file)
- s_dir_ino = self.mount_a.path_to_ino(s_dir)
- referent_inode = self.fs.read_meta_inode(s_dir_ino, s_file)
- # referents's remote should point to primary
- self.assertEqual(primary_inode['ino'], referent_inode['remote_ino'])
- self.assertIn(referent_inode['ino'], primary_inode['referent_inodes'])
-
- def test_referent_link(self):
- """
- test_referent_link - Test creation of referent inode and backtrace on link
- """
-
- self.mount_a.run_shell(["mkdir", "dir0"])
- self.mount_a.run_shell(["touch", "dir0/file1"])
- self.mount_a.run_shell(["ln", "dir0/file1", "dir0/hardlink_file1"])
- file_ino = self.mount_a.path_to_ino("dir0/file1")
-
- # write out the backtrace - this would writeout the backrace
- # of the newly introduced referent inode to the data pool.
- self.fs.mds_asok(["flush", "journal"])
-
- # read the primary inode
- dir_ino = self.mount_a.path_to_ino("dir0")
- file1_inode = self.fs.read_meta_inode(dir_ino, "file1")
-
- # read the referent inode from metadata pool
- referent_inode = self.fs.read_meta_inode(dir_ino, "hardlink_file1")
-
- self.assertFalse(file1_inode['ino'] == referent_inode['ino'])
-
- # reverse link - the real inode should track the referent inode number
- self.assertIn(referent_inode['ino'], file1_inode['referent_inodes'])
- # link - the referent inode should point to real inode
- self.assertEqual(referent_inode['remote_ino'], file_ino)
-
- # backtrace of referent inode from data pool
- backtrace = self.fs.read_backtrace(referent_inode['ino'])
- # path validation
- self.assertEqual(['hardlink_file1', 'dir0'], [a['dname'] for a in backtrace['ancestors']])
- # inode validation
- self.assertEqual(referent_inode['ino'], backtrace['ino'])
- self.assertEqual([dir_ino, 1], [a['dirino'] for a in backtrace['ancestors']])
-
- def test_referent_unlink(self):
- """
- test_referent_unlink - Test deletion of referent inode and backtrace on unlink
- """
-
- self.mount_a.run_shell(["mkdir", "dir0"])
- self.mount_a.run_shell(["touch", "dir0/file1"])
- self.mount_a.run_shell(["ln", "dir0/file1", "dir0/hardlink_file1"])
- file_ino = self.mount_a.path_to_ino("dir0/file1")
-
- # write out the backtrace - this would writeout the backtrace
- # of the newly introduced referent inode to the data pool.
- self.fs.mds_asok(["flush", "journal"])
-
- # read the primary inode
- dir_ino = self.mount_a.path_to_ino("dir0")
- file1_inode = self.fs.read_meta_inode(dir_ino, "file1")
-
- # read the referent inode from metadata pool
- referent_inode = self.fs.read_meta_inode(dir_ino, "hardlink_file1")
-
- self.assertFalse(file1_inode['ino'] == referent_inode['ino'])
-
- # reverse link - the real inode should track the referent inode number
- self.assertIn(referent_inode['ino'], file1_inode['referent_inodes'])
- # link - the referent inode should point to real inode
- self.assertEqual(referent_inode['remote_ino'], file_ino)
-
- # backtrace of referent inode from data pool
- backtrace = self.fs.read_backtrace(referent_inode['ino'])
- # path validation
- self.assertEqual(['hardlink_file1', 'dir0'], [a['dname'] for a in backtrace['ancestors']])
- # inode validation
- self.assertEqual(referent_inode['ino'], backtrace['ino'])
- self.assertEqual([dir_ino, 1], [a['dirino'] for a in backtrace['ancestors']])
-
- # unlink
- self.mount_a.run_shell(["rm", "-f", "dir0/hardlink_file1"])
- self.fs.mds_asok(["flush", "journal"])
- # referent inode should be removed from the real inode
- # in-memory
- file1_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(file_ino)])
- self.assertNotIn(referent_inode['ino'], file1_inode_dump['referent_inodes'])
- # on-disk
- file1_inode = self.fs.read_meta_inode(dir_ino, "file1")
- self.assertNotIn(referent_inode['ino'], file1_inode['referent_inodes'])
- # referent inode object from data pool should be deleted
- with self.assertRaises(ObjectNotFound):
- self.fs.read_backtrace(referent_inode['ino'])
- # omap value of referent inode from metadata pool should be deleted
- with self.assertRaises(ObjectNotFound):
- self.fs.read_meta_inode(dir_ino, "hardlink_file1")
-
- def test_hardlink_reintegration_with_referent(self):
- """
- test_hardlink_reintegration_with_referent - That removal of primary dentry
- of hardlinked inode results in reintegration of inode into the previously
- referent remote dentry, rather than lingering as a stray indefinitely.
- """
-
- # Write some bytes to file_a
- size_mb = 8
- self.mount_a.run_shell(["mkdir", "dir_1"])
- self.mount_a.write_n_mb("dir_1/file_a", size_mb)
- ino = self.mount_a.path_to_ino("dir_1/file_a")
-
- # Create a hardlink named file_b
- self.mount_a.run_shell(["mkdir", "dir_2"])
- self.mount_a.run_shell(["ln", "dir_1/file_a", "dir_2/file_b"])
- self.assertEqual(self.mount_a.path_to_ino("dir_2/file_b"), ino)
-
- # Flush journal
- self.fs.mds_asok(['flush', 'journal'])
-
- # Validate referent_inodes list
- # read the primary inode
- dir_1_ino = self.mount_a.path_to_ino("dir_1")
- file_a_inode = self.fs.read_meta_inode(dir_1_ino, "file_a")
- # read the hardlink referent inode
- dir_2_ino = self.mount_a.path_to_ino("dir_2")
- file_b_inode = self.fs.read_meta_inode(dir_2_ino, "file_b")
- self.assertIn(file_b_inode['ino'], file_a_inode['referent_inodes'])
- # link - the referent inode should point to real inode
- self.assertEqual(file_b_inode['remote_ino'], ino)
-
- # See that backtrace for the file points to the file_a path
- pre_unlink_bt = self.fs.read_backtrace(ino)
- self.assertEqual(pre_unlink_bt['ancestors'][0]['dname'], "file_a")
-
- # empty mds cache. otherwise mds reintegrates stray when unlink finishes
- self.mount_a.umount_wait()
- self.fs.mds_asok(['flush', 'journal'])
- self.fs.mds_fail_restart()
- self.fs.wait_for_daemons()
- self.mount_a.mount_wait()
-
- # Unlink file_a
- self.mount_a.run_shell(["rm", "-f", "dir_1/file_a"]) #strays_created=1
-
- # See that a stray was created
- self.assertEqual(self.get_mdc_stat("num_strays"), 1)
- self.assertEqual(self.get_mdc_stat("strays_created"), 1)
-
- # Wait, see that data objects are still present (i.e. that the
- # stray did not advance to purging given time)
- time.sleep(30)
- self.assertTrue(self.fs.data_objects_present(ino, size_mb * 1024 * 1024))
- self.assertEqual(self.get_mdc_stat("strays_enqueued"), 0)
-
- # See that before reintegration, the inode's backtrace points to a stray dir
- self.fs.mds_asok(['flush', 'journal'])
- self.assertTrue(self.get_backtrace_path(ino).startswith("stray"))
-
- last_reintegrated = self.get_mdc_stat("strays_reintegrated")
-
- # Do a metadata operation on the remaining link (mv is heavy handed, but
- # others like touch may be satisfied from caps without poking MDS)
- self.mount_a.run_shell(["mv", "dir_2/file_b", "dir_2/file_c"])
-
- #strays_created=2, after reintegration
-
- # Stray reintegration should happen as a result of the eval_remote call
- # on responding to a client request.
- self.wait_until_equal(
- lambda: self.get_mdc_stat("num_strays"),
- expect_val=0,
- timeout=60
- )
-
- # See the reintegration counter increment
- curr_reintegrated = self.get_mdc_stat("strays_reintegrated")
- self.assertGreater(curr_reintegrated, last_reintegrated)
- last_reintegrated = curr_reintegrated
-
- # Flush the journal
- self.fs.mds_asok(['flush', 'journal'])
-
- # Validate for empty referent_inodes list after reintegration
- file_c_inode = self.fs.read_meta_inode(dir_2_ino, "file_c")
- self.assertEqual(file_c_inode['referent_inodes'], [])
-
- # See that the backtrace for the file points to the remaining link's path
- post_reint_bt = self.fs.read_backtrace(ino)
- self.assertEqual(post_reint_bt['ancestors'][0]['dname'], "file_c")
-
- # mds should reintegrates stray when unlink finishes
- self.mount_a.run_shell(["ln", "dir_2/file_c", "dir_2/file_d"])
-
- # validate in-memory referent inodes list for non-emptiness
- file_c_ino = self.mount_a.path_to_ino("dir_2/file_c")
- file_c_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(file_c_ino)])
- self.assertTrue(file_c_inode_dump['referent_inodes'])
-
- # mds should reintegrates stray when unlink finishes
- self.mount_a.run_shell(["rm", "-f", "dir_2/file_c"])
-
- #strays_created=4 (primary unlink=1, reintegration=1 referent file_d goes stray)
-
- # Stray reintegration should happen as a result of the notify_stray call
- # on completion of unlink
- self.wait_until_equal(
- lambda: self.get_mdc_stat("num_strays"),
- expect_val=0,
- timeout=60
- )
-
- # See the reintegration counter increment
- curr_reintegrated = self.get_mdc_stat("strays_reintegrated")
- self.assertGreater(curr_reintegrated, last_reintegrated)
- last_reintegrated = curr_reintegrated
-
- # validate in-memory referent inodes list for emptiness
- file_d_ino = self.mount_a.path_to_ino("dir_2/file_d")
- file_d_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(file_d_ino)])
- self.assertEqual(file_d_inode_dump['referent_inodes'], [])
-
- # Flush the journal
- self.fs.mds_asok(['flush', 'journal'])
-
- # See that the backtrace for the file points to the newest link's path
- post_reint_bt = self.fs.read_backtrace(ino)
- self.assertEqual(post_reint_bt['ancestors'][0]['dname'], "file_d")
-
- # Now really delete it
- self.mount_a.run_shell(["rm", "-f", "dir_2/file_d"])
- # strays_created=5, after unlink
- self._wait_for_counter("mds_cache", "strays_enqueued", 3)
- self._wait_for_counter("purge_queue", "pq_executed", 3)
-
- self.assert_purge_idle()
- self.assertTrue(self.fs.data_objects_absent(ino, size_mb * 1024 * 1024))
-
- # We caused the inode to go stray 5 times. Follow the comments above for the count
- self.assertEqual(self.get_mdc_stat("strays_created"), 5)
- # We purged it at the last (1 primary, 2 hardlinks with referent)
- self.assertEqual(self.get_mdc_stat("strays_enqueued"), 3)
-
- # Flush the journal
- self.fs.mds_asok(['flush', 'journal'])
- # All data objects include referent inodes should go away
- self.assertEqual(self.fs.list_data_objects(), [''])
-
- def test_mv_hardlink_cleanup_with_referent(self):
- """
- test_mv_hardlink_cleanup_with_referent - That when doing a rename from A to B, and B
- has hardlinks, then we make a stray for B which is then reintegrated into one of it's
- hardlinks with referent inodes.
- """
- # Create file_a, file_b, and a hardlink to file_b
- size_mb = 8
- self.mount_a.write_n_mb("file_a", size_mb)
- file_a_ino = self.mount_a.path_to_ino("file_a")
-
- self.mount_a.write_n_mb("file_b", size_mb)
- file_b_ino = self.mount_a.path_to_ino("file_b")
-
- # empty referent_inodes list for file_b
- file_b_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(file_b_ino)])
- self.assertEqual(file_b_inode_dump['referent_inodes'], [])
-
- self.mount_a.run_shell(["ln", "file_b", "linkto_b"])
- self.assertEqual(self.mount_a.path_to_ino("linkto_b"), file_b_ino)
-
- # linkto_b's referent inode got added to referent_inodes list of file_b
- # flush the journal
- self.fs.mds_asok(['flush', 'journal'])
- file_b_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(file_b_ino)])
- self.assertTrue(file_b_inode_dump['referent_inodes'])
- referent_ino_linkto_b = file_b_inode_dump['referent_inodes'][0]
- linkto_b_referent_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(referent_ino_linkto_b)])
- self.assertEqual(linkto_b_referent_inode_dump['remote_ino'], file_b_ino )
-
- # mv file_a file_b
- self.mount_a.run_shell(["mv", "file_a", "file_b"])
-
- # Stray reintegration should happen as a result of the notify_stray call on
- # completion of rename
- self.wait_until_equal(
- lambda: self.get_mdc_stat("num_strays"),
- expect_val=0,
- timeout=60
- )
-
- self.assertEqual(self.get_mdc_stat("strays_created"), 2)
- self.assertGreaterEqual(self.get_mdc_stat("strays_reintegrated"), 1)
-
- # No data objects should have been deleted, as both files still have linkage.
- self.assertTrue(self.fs.data_objects_present(file_a_ino, size_mb * 1024 * 1024))
- self.assertTrue(self.fs.data_objects_present(file_b_ino, size_mb * 1024 * 1024))
-
- # After stray reintegration, referent inode should be removed from list
- linkto_b_ino = self.mount_a.path_to_ino("linkto_b")
- linkto_b_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(linkto_b_ino)])
- self.assertEqual(linkto_b_inode_dump['referent_inodes'], [])
- # referent ino should be deleted
- self.assertTrue(self.fs.data_objects_absent(referent_ino_linkto_b, size_mb * 1024 * 1024))
-
- self.fs.mds_asok(['flush', 'journal'])
-
- post_reint_bt = self.fs.read_backtrace(file_b_ino)
- self.assertEqual(post_reint_bt['ancestors'][0]['dname'], "linkto_b")
-
- def test_read_a_referent_dentry(self):
- """
- test_read_a_referent_dentry - Test read of a hardlink file with referent inode
- """
- self.mount_a.run_shell(["mkdir", "dir0"])
- self.mount_a.run_shell(["mkdir", "dir1"])
- self.mount_a.write_file('dir0/file1', 'somedata')
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file1"])
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file2"])
-
- data_read_from_primary_file = self.mount_a.read_file('dir0/file1')
- self.assertEqual('somedata', data_read_from_primary_file)
- data_read_from_hardlink1 = self.mount_a.read_file('dir1/hardlink_file1')
- self.assertEqual('somedata', data_read_from_hardlink1)
- data_read_from_hardlink2 = self.mount_a.read_file('dir1/hardlink_file2')
- self.assertEqual('somedata', data_read_from_hardlink2)
-
- def test_referent_dentry_load_after_mds_restart(self):
- """
- test_referent_dentry_load_after_mds_restart - Test loading of referent inode from disk
- """
- self.mount_a.run_shell(["mkdir", "dir0"])
- self.mount_a.run_shell(["mkdir", "dir1"])
- self.mount_a.write_file('dir0/file1', 'somedata')
-
- # create hardlinks and save referent inode numbers before mds restart
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file1"])
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file2"])
- self.fs.mds_asok(['flush', 'journal'])
- file1_ino = self.mount_a.path_to_ino("dir0/file1")
- file1_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(file1_ino)])
- referent1_ino = file1_inode_dump['referent_inodes'][0]
- referent2_ino = file1_inode_dump['referent_inodes'][1]
-
- # umount, flush and restart the mds forcing the mds to load the dentries from the disk
- self.mount_a.umount_wait()
- self.fs.mds_asok(['flush', 'journal'])
- self.fs.mds_fail_restart()
- self.fs.wait_for_daemons()
- self.mount_a.mount_wait()
-
- # validate the data after loading referent dentry from the disk
- data_read_from_primary_file = self.mount_a.read_file('dir0/file1')
- self.assertEqual('somedata', data_read_from_primary_file)
- data_read_from_hardlink1 = self.mount_a.read_file('dir1/hardlink_file1')
- self.assertEqual('somedata', data_read_from_hardlink1)
- data_read_from_hardlink2 = self.mount_a.read_file('dir1/hardlink_file2')
- self.assertEqual('somedata', data_read_from_hardlink2)
-
- # validate the referent_inodes list after mds restart
- file1_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(file1_ino)])
- self.assertEqual(len(file1_inode_dump['referent_inodes']), 2)
- self.assertIn(referent1_ino, file1_inode_dump['referent_inodes'])
- self.assertIn(referent2_ino, file1_inode_dump['referent_inodes'])
-
- def test_rename_a_referent_dentry(self):
- """
- test_rename_a_referent_dentry - Test rename of a hardlink file with referent inode
- """
-
- self.mount_a.run_shell(["mkdir", "dir0"])
- self.mount_a.run_shell(["mkdir", "dir1"])
- self.mount_a.run_shell(["mkdir", "dir2"])
- self.mount_a.write_file('dir0/file1', 'somedata')
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file1"])
-
- # write out the backtrace - this would writeout the backrace
- # of the newly introduced referent inode to the data pool.
- self.fs.mds_asok(["flush", "journal"])
- # save referent ino for validation from disk
- dir1_ino = self.mount_a.path_to_ino('dir1')
- referent_inode = self.fs.read_meta_inode(dir1_ino, "hardlink_file1")
- referent_ino = referent_inode['ino']
-
- # rename hardlink referent dentry
- self.mount_a.run_shell(["mv", "dir1/hardlink_file1", "dir2/renamed_hardlink_file1"])
-
- # validate the data read after rename
- data_read_from_renamed_hardlink = self.mount_a.read_file('dir2/renamed_hardlink_file1')
- self.assertEqual('somedata', data_read_from_renamed_hardlink)
-
- # validate referent_inode list in memory and on disk
- self.fs.mds_asok(["flush", "journal"])
- self.verify_referent_inode_list_in_memory("dir0/file1", referent_ino)
- self.verify_referent_inode_list_on_disk("dir0", "file1", "dir2", "renamed_hardlink_file1")
- # validate backtrace after rename
- self.assert_backtrace(referent_ino, "dir2/renamed_hardlink_file1")
def test_rename_primary_to_existing_referent_dentry(self):
"""
The rename should be noop as it's rename to same ino
"""
- self.fs.set_allow_referent_inodes(False)
self.mount_a.run_shell(["mkdir", "dir0"])
self.mount_a.run_shell(["mkdir", "dir1"])
self.mount_a.write_file('dir0/file1', 'somedata')
hardlink_inode = self.mount_a.path_to_ino('dir1/hardlink_file1')
self.assertEqual(primary_inode_after_rename, primary_inode)
self.assertEqual(hardlink_inode, primary_inode)
-
- def test_referent_with_mdlog_replay(self):
- """
- test_referent_with_mdlog_replay - Restart the mds before the journal flush so that it recovers referent hardlinks from the journal
- """
- self.mount_a.run_shell(["mkdir", "dir0"])
- self.mount_a.run_shell(["mkdir", "dir1"])
- self.mount_a.run_shell(["mkdir", "dir2"])
- self.mount_a.write_file('dir0/file1', 'somedata')
- primary_inode = self.mount_a.path_to_ino('dir0/file1')
-
- # hardlinks
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file1"])
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file2"])
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file3"])
- self.mount_a.run_shell(["ln", "dir0/file1", "dir1/hardlink_file4"])
-
- # unlink referent hardlink dentry
- self.mount_a.run_shell(["rm", "-f", "dir1/hardlink_file4"])
- # rename referent hardlink dentry
- self.mount_a.run_shell(["mv", "dir1/hardlink_file3", "dir2/renamed_hardlink_file3"])
-
- # restart mds without flush, so that it recovers from the journal replay
- self.fs.rank_signal(signal.SIGKILL, rank=0)
- self.fs.mds_fail_restart()
- self.fs.rank_fail(rank=0)
- self.fs.wait_for_daemons()
-
- # Validate after mdlog replay
- primary_inode_after_replay = self.mount_a.path_to_ino('dir0/file1')
- self.assertEqual(primary_inode, primary_inode_after_replay)
- hardlink1_inode = self.mount_a.path_to_ino('dir1/hardlink_file1')
- hardlink2_inode = self.mount_a.path_to_ino('dir1/hardlink_file2')
- renamed_hardlink3_inode = self.mount_a.path_to_ino('dir2/renamed_hardlink_file3')
- hardlink_file3_path = os.path.join(self.mount_a.mountpoint, "dir1", "hardlink_file3")
- hardlink_file4_path = os.path.join(self.mount_a.mountpoint, "dir1", "hardlink_file4")
- with self.assertRaises(FileNotFoundError):
- os.lstat(hardlink_file3_path)
- with self.assertRaises(FileNotFoundError):
- os.lstat(hardlink_file4_path)
- self.assertEqual(primary_inode, hardlink1_inode)
- self.assertEqual(primary_inode, hardlink2_inode)
- self.assertEqual(primary_inode, renamed_hardlink3_inode)
-
- # referent_inodes list validation
- primary_inode_dump = self.fs.mds_asok(['dump', 'inode', hex(primary_inode)])
- self.assertEqual(len(primary_inode_dump['referent_inodes']), 3)
- self.assertEqual(primary_inode_dump['nlink'], 4)
-
- # flush journal and validate backtraces
- self.fs.mds_asok(["flush", "journal"])
- dir1_ino = self.mount_a.path_to_ino('dir1')
- dir2_ino = self.mount_a.path_to_ino('dir2')
- referent_inode1 = self.fs.read_meta_inode(dir1_ino, "hardlink_file1")
- referent_inode2 = self.fs.read_meta_inode(dir1_ino, "hardlink_file2")
- referent_inode3 = self.fs.read_meta_inode(dir2_ino, "renamed_hardlink_file3")
- self.verify_referent_inode_list_in_memory("dir0/file1", referent_inode1['ino'])
- self.verify_referent_inode_list_in_memory("dir0/file1", referent_inode2['ino'])
- self.verify_referent_inode_list_in_memory("dir0/file1", referent_inode3['ino'])
- self.verify_referent_inode_list_on_disk("dir0", "file1", "dir1", "hardlink_file1")
- self.verify_referent_inode_list_on_disk("dir0", "file1", "dir1", "hardlink_file2")
- self.verify_referent_inode_list_on_disk("dir0", "file1", "dir2", "renamed_hardlink_file3")
- with self.assertRaises(ObjectNotFound):
- self.fs.read_meta_inode(dir1_ino, "hardlink_file3")
- with self.assertRaises(ObjectNotFound):
- self.fs.read_meta_inode(dir1_ino, "hardlink_file4")
-
- # validate backtrace after rename
- self.assert_backtrace(referent_inode1['ino'], "dir1/hardlink_file1")
- self.assert_backtrace(referent_inode2['ino'], "dir1/hardlink_file2")
- self.assert_backtrace(referent_inode3['ino'], "dir2/renamed_hardlink_file3")
-
- def test_multiple_referent_post_reintegration(self):
- pass
-
- def test_referent_with_mds_killpoints(self):
- pass
-
- def test_referent_with_snapshot(self):
- pass
-
- def test_referent_no_caps(self):
- pass
-
-'''
-class TestNoGlobalSnaprealm(CephFSTestCase):
- MDSS_REQUIRED = 1
- CLIENTS_REQUIRED = 1
- ALLOW_REFERENT_INODES = True
-
- def test_use_global_snaprealm_option(self):
- """
- test_use_global_snaprealm_option - Test the fs option 'use_global_snaprealm'
- """
- mds_map = self.fs.get_mds_map()
- # validate it's enabled by default
- self.assertTrue(mds_map["flags_state"]["use_global_snaprealm"])
- self.run_ceph_cmd(f'fs set {self.fs.name} use_global_snaprealm false')
- mds_map = self.fs.get_mds_map()
- self.assertFalse(mds_map["flags_state"]["use_global_snaprealm"])
-
- def test_use_global_snaprealm_referent_dependency(self):
- """
- test_use_global_snaprealm_referent_dependency - Test the fs option 'use_global_snaprealm' and 'allow_referent_inodes' dependency
- """
- # referent inodes is enabled by default with this test
- mds_map = self.fs.get_mds_map()
- self.assertTrue(mds_map["flags_state"]["use_global_snaprealm"])
- # validate 'use_global_snaprealm' enable/disable when referent inodes is enabled. This is allowed
- self.run_ceph_cmd(f'fs set {self.fs.name} use_global_snaprealm false')
- mds_map = self.fs.get_mds_map()
- self.assertFalse(mds_map["flags_state"]["use_global_snaprealm"])
-
- self.run_ceph_cmd(f'fs set {self.fs.name} use_global_snaprealm true')
- mds_map = self.fs.get_mds_map()
- self.assertTrue(mds_map["flags_state"]["use_global_snaprealm"])
-
- # Disable global snaprealm and check allow_referent_inodes can't be disabled
- self.fs.set_use_global_snaprealm(False)
- with self.assertRaises(CommandFailedError) as ce:
- self.run_ceph_cmd(f'fs set {self.fs.name} allow_referent_inodes false')
- self.assertEqual(ce.exception.exitstatus, errno.EOPNOTSUPP)
-
- # when global snaprealm is enabled, referent inodes can be disabled
- self.fs.set_use_global_snaprealm(True)
- self.run_ceph_cmd(f'fs set {self.fs.name} allow_referent_inodes false')
- mds_map = self.fs.get_mds_map()
- self.assertFalse(mds_map["flags_state"]["allow_referent_inodes"])
-
- # Validate - global snaprealm can't be disabled without enabling referent inodes
- with self.assertRaises(CommandFailedError) as ce:
- self.run_ceph_cmd(f'fs set {self.fs.name} use_global_snaprealm false')
- self.assertEqual(ce.exception.exitstatus, errno.EOPNOTSUPP)
-
- self.run_ceph_cmd(f'fs set {self.fs.name} allow_referent_inodes true')
- self.run_ceph_cmd(f'fs set {self.fs.name} use_global_snaprealm false')
-'''
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