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Diffstat (limited to 'qa/tasks/cephfs/test_misc.py')
| -rw-r--r-- | qa/tasks/cephfs/test_misc.py | 291 |
1 files changed, 291 insertions, 0 deletions
diff --git a/qa/tasks/cephfs/test_misc.py b/qa/tasks/cephfs/test_misc.py new file mode 100644 index 00000000..cd72ac38 --- /dev/null +++ b/qa/tasks/cephfs/test_misc.py @@ -0,0 +1,291 @@ + +from unittest import SkipTest +from tasks.cephfs.fuse_mount import FuseMount +from tasks.cephfs.cephfs_test_case import CephFSTestCase +from teuthology.orchestra.run import CommandFailedError, ConnectionLostError +import errno +import time +import json +import logging + +log = logging.getLogger(__name__) + +class TestMisc(CephFSTestCase): + CLIENTS_REQUIRED = 2 + + 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): + raise 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() + self.mount_b.wait_until_mounted() + + # 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.mds_stop() + self.fs.mds_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, + self.fs.pgs_per_fs_pool.__str__()) + + dummyfile = '/etc/fstab' + + self.fs.put_metadata_object_raw("key", dummyfile) + + 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', '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, + self.fs.pgs_per_fs_pool.__str__()) + self.fs.mon_manager.raw_cluster_cmd('fs', 'new', self.fs.name, + self.fs.metadata_pool_name, + data_pool_name) + + 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.kill() + + 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.mount_a.is_blacklisted()) + cap_holder.stdin.close() + try: + cap_holder.wait() + except (CommandFailedError, ConnectionLostError): + # We killed it (and possibly its node), so it raises an error + pass + finally: + self.mount_a.kill_cleanup() + + self.mount_a.mount() + self.mount_a.wait_until_mounted() + + 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" + + +class TestCacheDrop(CephFSTestCase): + CLIENTS_REQUIRED = 1 + + def _run_drop_cache_cmd(self, timeout=None): + result = None + mds_id = self.fs.get_lone_mds_id() + if timeout is not None: + result = self.fs.mon_manager.raw_cluster_cmd("tell", "mds.{0}".format(mds_id), + "cache", "drop", str(timeout)) + else: + result = self.fs.mon_manager.raw_cluster_cmd("tell", "mds.{0}".format(mds_id), + "cache", "drop") + return json.loads(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.kill() + # 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.kill_cleanup() + self.mount_a.mount() + self.mount_a.wait_until_mounted() + + 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.kill() + 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.kill_cleanup() + self.mount_a.mount() + self.mount_a.wait_until_mounted() |