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Diffstat (limited to '')
| -rw-r--r-- | qa/tasks/ceph_test_case.py | 203 |
1 files changed, 203 insertions, 0 deletions
diff --git a/qa/tasks/ceph_test_case.py b/qa/tasks/ceph_test_case.py new file mode 100644 index 00000000..9e26439e --- /dev/null +++ b/qa/tasks/ceph_test_case.py @@ -0,0 +1,203 @@ +import unittest +from unittest import case +import time +import logging + +from teuthology.orchestra.run import CommandFailedError + +log = logging.getLogger(__name__) + +class TestTimeoutError(RuntimeError): + pass + +class CephTestCase(unittest.TestCase): + """ + For test tasks that want to define a structured set of + tests implemented in python. Subclass this with appropriate + helpers for the subsystem you're testing. + """ + + # Environment references + mounts = None + fs = None + recovery_fs = None + ceph_cluster = None + mds_cluster = None + mgr_cluster = None + ctx = None + + mon_manager = None + + # Declarative test requirements: subclasses should override these to indicate + # their special needs. If not met, tests will be skipped. + REQUIRE_MEMSTORE = False + + def setUp(self): + self._mon_configs_set = set() + + self.ceph_cluster.mon_manager.raw_cluster_cmd("log", + "Starting test {0}".format(self.id())) + + if self.REQUIRE_MEMSTORE: + objectstore = self.ceph_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 (test " \ + "would take too long on full sized OSDs") + + def tearDown(self): + self.config_clear() + + self.ceph_cluster.mon_manager.raw_cluster_cmd("log", + "Ended test {0}".format(self.id())) + + def config_clear(self): + for section, key in self._mon_configs_set: + self.config_rm(section, key) + self._mon_configs_set.clear() + + def _fix_key(self, key): + return str(key).replace(' ', '_') + + def config_get(self, section, key): + key = self._fix_key(key) + return self.ceph_cluster.mon_manager.raw_cluster_cmd("config", "get", section, key).strip() + + def config_show(self, entity, key): + key = self._fix_key(key) + return self.ceph_cluster.mon_manager.raw_cluster_cmd("config", "show", entity, key).strip() + + def config_minimal(self): + return self.ceph_cluster.mon_manager.raw_cluster_cmd("config", "generate-minimal-conf").strip() + + def config_rm(self, section, key): + key = self._fix_key(key) + self.ceph_cluster.mon_manager.raw_cluster_cmd("config", "rm", section, key) + # simplification: skip removing from _mon_configs_set; + # let tearDown clear everything again + + def config_set(self, section, key, value): + key = self._fix_key(key) + self._mon_configs_set.add((section, key)) + self.ceph_cluster.mon_manager.raw_cluster_cmd("config", "set", section, key, str(value)) + + def assert_cluster_log(self, expected_pattern, invert_match=False, + timeout=10, watch_channel=None): + """ + Context manager. Assert that during execution, or up to 5 seconds later, + the Ceph cluster log emits a message matching the expected pattern. + + :param expected_pattern: A string that you expect to see in the log output + :type expected_pattern: str + :param watch_channel: Specifies the channel to be watched. This can be + 'cluster', 'audit', ... + :type watch_channel: str + """ + + ceph_manager = self.ceph_cluster.mon_manager + + class ContextManager(object): + def match(self): + found = expected_pattern in self.watcher_process.stdout.getvalue() + if invert_match: + return not found + + return found + + def __enter__(self): + self.watcher_process = ceph_manager.run_ceph_w(watch_channel) + + def __exit__(self, exc_type, exc_val, exc_tb): + if not self.watcher_process.finished: + # Check if we got an early match, wait a bit if we didn't + if self.match(): + return + else: + log.debug("No log hits yet, waiting...") + # Default monc tick interval is 10s, so wait that long and + # then some grace + time.sleep(5 + timeout) + + self.watcher_process.stdin.close() + try: + self.watcher_process.wait() + except CommandFailedError: + pass + + if not self.match(): + log.error("Log output: \n{0}\n".format(self.watcher_process.stdout.getvalue())) + raise AssertionError("Expected log message not found: '{0}'".format(expected_pattern)) + + return ContextManager() + + def wait_for_health(self, pattern, timeout): + """ + Wait until 'ceph health' contains messages matching the pattern + """ + def seen_health_warning(): + health = self.ceph_cluster.mon_manager.get_mon_health() + codes = [s for s in health['checks']] + summary_strings = [s[1]['summary']['message'] for s in health['checks'].items()] + if len(summary_strings) == 0: + log.debug("Not expected number of summary strings ({0})".format(summary_strings)) + return False + else: + for ss in summary_strings: + if pattern in ss: + return True + if pattern in codes: + return True + + log.debug("Not found expected summary strings yet ({0})".format(summary_strings)) + return False + + self.wait_until_true(seen_health_warning, timeout) + + def wait_for_health_clear(self, timeout): + """ + Wait until `ceph health` returns no messages + """ + def is_clear(): + health = self.ceph_cluster.mon_manager.get_mon_health() + return len(health['checks']) == 0 + + self.wait_until_true(is_clear, timeout) + + def wait_until_equal(self, get_fn, expect_val, timeout, reject_fn=None): + period = 5 + elapsed = 0 + while True: + val = get_fn() + if val == expect_val: + return + elif reject_fn and reject_fn(val): + raise RuntimeError("wait_until_equal: forbidden value {0} seen".format(val)) + else: + if elapsed >= timeout: + raise TestTimeoutError("Timed out after {0} seconds waiting for {1} (currently {2})".format( + elapsed, expect_val, val + )) + else: + log.debug("wait_until_equal: {0} != {1}, waiting...".format(val, expect_val)) + time.sleep(period) + elapsed += period + + log.debug("wait_until_equal: success") + + @classmethod + def wait_until_true(cls, condition, timeout, period=5): + elapsed = 0 + while True: + if condition(): + log.debug("wait_until_true: success in {0}s".format(elapsed)) + return + else: + if elapsed >= timeout: + raise TestTimeoutError("Timed out after {0}s".format(elapsed)) + else: + log.debug("wait_until_true: waiting...") + time.sleep(period) + elapsed += period + + |