--- /dev/null
+import json
+import logging
+from unittest import case
+from tasks.ceph_test_case import CephTestCase
+import os
+import re
+from StringIO import StringIO
+
+from tasks.cephfs.fuse_mount import FuseMount
+
+from teuthology.orchestra import run
+from teuthology.orchestra.run import CommandFailedError
+
+
+log = logging.getLogger(__name__)
+
+
+def for_teuthology(f):
+ """
+ Decorator that adds an "is_for_teuthology" attribute to the wrapped function
+ """
+ f.is_for_teuthology = True
+ return f
+
+
+def needs_trimming(f):
+ """
+ Mark fn as requiring a client capable of trimming its cache (i.e. for ceph-fuse
+ this means it needs to be able to run as root, currently)
+ """
+ f.needs_trimming = True
+ return f
+
+
+class CephFSTestCase(CephTestCase):
+ """
+ Test case for Ceph FS, requires caller to populate Filesystem and Mounts,
+ into the fs, mount_a, mount_b class attributes (setting mount_b is optional)
+
+ Handles resetting the cluster under test between tests.
+ """
+
+ # FIXME weird explicit naming
+ mount_a = None
+ mount_b = None
+ recovery_mount = None
+
+ # Declarative test requirements: subclasses should override these to indicate
+ # their special needs. If not met, tests will be skipped.
+ CLIENTS_REQUIRED = 1
+ MDSS_REQUIRED = 1
+ REQUIRE_KCLIENT_REMOTE = False
+ REQUIRE_ONE_CLIENT_REMOTE = False
+ REQUIRE_MEMSTORE = False
+
+ # Whether to create the default filesystem during setUp
+ REQUIRE_FILESYSTEM = True
+
+ # requires REQUIRE_FILESYSTEM = True
+ REQUIRE_RECOVERY_FILESYSTEM = False
+
+ LOAD_SETTINGS = []
+
+ def setUp(self):
+ super(CephFSTestCase, self).setUp()
+
+ if len(self.mds_cluster.mds_ids) < self.MDSS_REQUIRED:
+ raise case.SkipTest("Only have {0} MDSs, require {1}".format(
+ len(self.mds_cluster.mds_ids), self.MDSS_REQUIRED
+ ))
+
+ if len(self.mounts) < self.CLIENTS_REQUIRED:
+ raise case.SkipTest("Only have {0} clients, require {1}".format(
+ len(self.mounts), self.CLIENTS_REQUIRED
+ ))
+
+ if self.REQUIRE_KCLIENT_REMOTE:
+ if not isinstance(self.mounts[0], FuseMount) or not isinstance(self.mounts[1], FuseMount):
+ # kclient kill() power cycles nodes, so requires clients to each be on
+ # their own node
+ if self.mounts[0].client_remote.hostname == self.mounts[1].client_remote.hostname:
+ raise case.SkipTest("kclient clients must be on separate nodes")
+
+ if self.REQUIRE_ONE_CLIENT_REMOTE:
+ if self.mounts[0].client_remote.hostname in self.mds_cluster.get_mds_hostnames():
+ raise case.SkipTest("Require first client to be on separate server from MDSs")
+
+ if self.REQUIRE_MEMSTORE:
+ objectstore = self.mds_cluster.get_config("osd_objectstore", "osd")
+ if objectstore != "memstore":
+ # You certainly *could* run this on a real OSD, but you don't want to sit
+ # here for hours waiting for the test to fill up a 1TB drive!
+ raise case.SkipTest("Require `memstore` OSD backend to simulate full drives")
+
+ # Create friendly mount_a, mount_b attrs
+ for i in range(0, self.CLIENTS_REQUIRED):
+ setattr(self, "mount_{0}".format(chr(ord('a') + i)), self.mounts[i])
+
+ self.mds_cluster.clear_firewall()
+
+ # Unmount all clients, we are about to blow away the filesystem
+ for mount in self.mounts:
+ if mount.is_mounted():
+ mount.umount_wait(force=True)
+
+ # To avoid any issues with e.g. unlink bugs, we destroy and recreate
+ # the filesystem rather than just doing a rm -rf of files
+ self.mds_cluster.mds_stop()
+ self.mds_cluster.mds_fail()
+ self.mds_cluster.delete_all_filesystems()
+ self.fs = None # is now invalid!
+ self.recovery_fs = None
+
+ # In case the previous filesystem had filled up the RADOS cluster, wait for that
+ # flag to pass.
+ osd_mon_report_interval_max = int(self.mds_cluster.get_config("osd_mon_report_interval_max", service_type='osd'))
+ self.wait_until_true(lambda: not self.mds_cluster.is_full(),
+ timeout=osd_mon_report_interval_max * 5)
+
+ # In case anything is in the OSD blacklist list, clear it out. This is to avoid
+ # the OSD map changing in the background (due to blacklist expiry) while tests run.
+ try:
+ self.mds_cluster.mon_manager.raw_cluster_cmd("osd", "blacklist", "clear")
+ except CommandFailedError:
+ # Fallback for older Ceph cluster
+ blacklist = json.loads(self.mds_cluster.mon_manager.raw_cluster_cmd("osd",
+ "dump", "--format=json-pretty"))['blacklist']
+ log.info("Removing {0} blacklist entries".format(len(blacklist)))
+ for addr, blacklisted_at in blacklist.items():
+ self.mds_cluster.mon_manager.raw_cluster_cmd("osd", "blacklist", "rm", addr)
+
+ client_mount_ids = [m.client_id for m in self.mounts]
+ # In case the test changes the IDs of clients, stash them so that we can
+ # reset in tearDown
+ self._original_client_ids = client_mount_ids
+ log.info(client_mount_ids)
+
+ # In case there were any extra auth identities around from a previous
+ # test, delete them
+ for entry in self.auth_list():
+ ent_type, ent_id = entry['entity'].split(".")
+ if ent_type == "client" and ent_id not in client_mount_ids and ent_id != "admin":
+ self.mds_cluster.mon_manager.raw_cluster_cmd("auth", "del", entry['entity'])
+
+ if self.REQUIRE_FILESYSTEM:
+ self.fs = self.mds_cluster.newfs(create=True)
+ self.fs.mds_restart()
+
+ # In case some test messed with auth caps, reset them
+ for client_id in client_mount_ids:
+ self.mds_cluster.mon_manager.raw_cluster_cmd_result(
+ 'auth', 'caps', "client.{0}".format(client_id),
+ 'mds', 'allow',
+ 'mon', 'allow r',
+ 'osd', 'allow rw pool={0}'.format(self.fs.get_data_pool_name()))
+
+ # wait for mds restart to complete...
+ self.fs.wait_for_daemons()
+
+ # Mount the requested number of clients
+ for i in range(0, self.CLIENTS_REQUIRED):
+ self.mounts[i].mount()
+ self.mounts[i].wait_until_mounted()
+
+ if self.REQUIRE_RECOVERY_FILESYSTEM:
+ if not self.REQUIRE_FILESYSTEM:
+ raise case.SkipTest("Recovery filesystem requires a primary filesystem as well")
+ self.fs.mon_manager.raw_cluster_cmd('fs', 'flag', 'set',
+ 'enable_multiple', 'true',
+ '--yes-i-really-mean-it')
+ self.recovery_fs = self.mds_cluster.newfs(name="recovery_fs", create=False)
+ self.recovery_fs.set_metadata_overlay(True)
+ self.recovery_fs.set_data_pool_name(self.fs.get_data_pool_name())
+ self.recovery_fs.create()
+ self.recovery_fs.getinfo(refresh=True)
+ self.recovery_fs.mds_restart()
+ self.recovery_fs.wait_for_daemons()
+
+ # Load an config settings of interest
+ for setting in self.LOAD_SETTINGS:
+ setattr(self, setting, float(self.fs.mds_asok(
+ ['config', 'get', setting], self.mds_cluster.mds_ids[0]
+ )[setting]))
+
+ self.configs_set = set()
+
+ def tearDown(self):
+ super(CephFSTestCase, self).tearDown()
+
+ self.mds_cluster.clear_firewall()
+ for m in self.mounts:
+ m.teardown()
+
+ for i, m in enumerate(self.mounts):
+ m.client_id = self._original_client_ids[i]
+
+ for subsys, key in self.configs_set:
+ self.mds_cluster.clear_ceph_conf(subsys, key)
+
+ def set_conf(self, subsys, key, value):
+ self.configs_set.add((subsys, key))
+ self.mds_cluster.set_ceph_conf(subsys, key, value)
+
+ def auth_list(self):
+ """
+ Convenience wrapper on "ceph auth ls"
+ """
+ return json.loads(self.mds_cluster.mon_manager.raw_cluster_cmd(
+ "auth", "ls", "--format=json-pretty"
+ ))['auth_dump']
+
+ def assert_session_count(self, expected, ls_data=None, mds_id=None):
+ if ls_data is None:
+ ls_data = self.fs.mds_asok(['session', 'ls'], mds_id=mds_id)
+
+ alive_count = len([s for s in ls_data if s['state'] != 'killing'])
+
+ self.assertEqual(expected, alive_count, "Expected {0} sessions, found {1}".format(
+ expected, alive_count
+ ))
+
+ def assert_session_state(self, client_id, expected_state):
+ self.assertEqual(
+ self._session_by_id(
+ self.fs.mds_asok(['session', 'ls'])).get(client_id, {'state': None})['state'],
+ expected_state)
+
+ def get_session_data(self, client_id):
+ return self._session_by_id(client_id)
+
+ def _session_list(self):
+ ls_data = self.fs.mds_asok(['session', 'ls'])
+ ls_data = [s for s in ls_data if s['state'] not in ['stale', 'closed']]
+ return ls_data
+
+ def get_session(self, client_id, session_ls=None):
+ if session_ls is None:
+ session_ls = self.fs.mds_asok(['session', 'ls'])
+
+ return self._session_by_id(session_ls)[client_id]
+
+ def _session_by_id(self, session_ls):
+ return dict([(s['id'], s) for s in session_ls])
+
+ def wait_for_daemon_start(self, daemon_ids=None):
+ """
+ Wait until all the daemons appear in the FSMap, either assigned
+ MDS ranks or in the list of standbys
+ """
+ def get_daemon_names():
+ return [info['name'] for info in self.mds_cluster.status().get_all()]
+
+ if daemon_ids is None:
+ daemon_ids = self.mds_cluster.mds_ids
+
+ try:
+ self.wait_until_true(
+ lambda: set(daemon_ids) & set(get_daemon_names()) == set(daemon_ids),
+ timeout=30
+ )
+ except RuntimeError:
+ log.warn("Timeout waiting for daemons {0}, while we have {1}".format(
+ daemon_ids, get_daemon_names()
+ ))
+ raise
+
+ def assert_mds_crash(self, daemon_id):
+ """
+ Assert that the a particular MDS daemon crashes (block until
+ it does)
+ """
+ try:
+ self.mds_cluster.mds_daemons[daemon_id].proc.wait()
+ except CommandFailedError as e:
+ log.info("MDS '{0}' crashed with status {1} as expected".format(daemon_id, e.exitstatus))
+ self.mds_cluster.mds_daemons[daemon_id].proc = None
+
+ # Go remove the coredump from the crash, otherwise teuthology.internal.coredump will
+ # catch it later and treat it as a failure.
+ p = self.mds_cluster.mds_daemons[daemon_id].remote.run(args=[
+ "sudo", "sysctl", "-n", "kernel.core_pattern"], stdout=StringIO())
+ core_pattern = p.stdout.getvalue().strip()
+ if os.path.dirname(core_pattern): # Non-default core_pattern with a directory in it
+ # We have seen a core_pattern that looks like it's from teuthology's coredump
+ # task, so proceed to clear out the core file
+ log.info("Clearing core from pattern: {0}".format(core_pattern))
+
+ # Determine the PID of the crashed MDS by inspecting the MDSMap, it had
+ # to talk to the mons to get assigned a rank to reach the point of crashing
+ addr = self.mds_cluster.mon_manager.get_mds_status(daemon_id)['addr']
+ pid_str = addr.split("/")[1]
+ log.info("Determined crasher PID was {0}".format(pid_str))
+
+ # Substitute PID into core_pattern to get a glob
+ core_glob = core_pattern.replace("%p", pid_str)
+ core_glob = re.sub("%[a-z]", "*", core_glob) # Match all for all other % tokens
+
+ # Verify that we see the expected single coredump matching the expected pattern
+ ls_proc = self.mds_cluster.mds_daemons[daemon_id].remote.run(args=[
+ "sudo", "ls", run.Raw(core_glob)
+ ], stdout=StringIO())
+ cores = [f for f in ls_proc.stdout.getvalue().strip().split("\n") if f]
+ log.info("Enumerated cores: {0}".format(cores))
+ self.assertEqual(len(cores), 1)
+
+ log.info("Found core file {0}, deleting it".format(cores[0]))
+
+ self.mds_cluster.mds_daemons[daemon_id].remote.run(args=[
+ "sudo", "rm", "-f", cores[0]
+ ])
+ else:
+ log.info("No core_pattern directory set, nothing to clear (internal.coredump not enabled?)")
+
+ else:
+ raise AssertionError("MDS daemon '{0}' did not crash as expected".format(daemon_id))
Code Review / stor4nfv.git / blobdiff