def quorum_status():
"""
Reports the status of monitor quorum
"""
base_result = MetricData(
name='cephlm.monitor.quorum',
messages={
'ok': 'Monitors are in quorum.',
'warn': 'Monitors ({msg}) is/are not in quorum.',
'fail': 'Monitors ({msg}) have not formed quorum.',
'unknown': 'Probe error: {msg}.'
})
msg = ''
value = Severity.ok
try:
output = Monitor.get_quorum_status()
quorum = output['quorum']
monitors = output['monmap']['mons']
if len(quorum) < len(monitors):
value = Severity.warn
for mon in monitors:
if mon['rank'] not in quorum:
msg += mon['name'] + ', '
msg = msg[:-2]
except CephCommandTimeoutException:
value = Severity.fail
cluster_name, config, config_file = Ceph._get_ceph_config()
msg = config.get('global', 'mon_host')
except CephCommandException as e:
value = Severity.unknown
msg = str(e)
result = base_result.child(msgkeys={'msg': msg})
result.value = value
return result
def check_status():
"""
Display the status of the ceph cluster as returned by 'ceph -s' command
"""
base_result = MetricData(name='cephlm.cluster.status',
messages={
'ok': 'Cluster is in healthy state.',
'warn':
'Cluster is in warning state: {msg}.',
'fail':
'Cluster is in error state: {msg}.',
'unknown': 'Probe error: {msg}.'
})
try:
output = Cluster.get_status()
except (CephLMException, CephCommandException,
CephCommandTimeoutException) as e:
result = base_result.child(msgkeys={'msg': str(e)})
result.value = Severity.unknown
return result
status = output['health']['overall_status']
summary = output['health']['summary']
msgkeys = {'msg': Cluster._process_status_message(status, summary)}
result = base_result.child(msgkeys=msgkeys)
result.value = Cluster._process_status(status)
return result
def check_hpssacli():
"""
Checks controller and drive information with hpssacli [Run as root]
"""
base_result = MetricData(name='cephlm.hpssacli',
messages=hpssacli.BASE_RESULT.messages)
HPssaCli._override_plugin_settings()
try:
results = hpssacli.main()
except Exception as e:
# Unlike other parameters, we do not know the list of metrics here.
# Hence there is no way to set each of them to error. Instead we
# raise exception wich will be handled by the generic cephlm-probe
# exception handler
msg = "Unknown exception occured when " \
"executing swiftlm hpssacli module"
raise CephLMException(msg)
ceph_results = list()
for entry in results:
# Extract the main metric name, and strip off the parent hierarchy
# E.g., swiftlm.hp_hardware.hpssacli.smart_array to smart_array
name = entry.name.split('hpssacli.', 1)[1]
# Clone the dimensions excluding entries pointing to external
# service references
dimensions = {
key: value
for key, value in entry.dimensions.iteritems()
if key not in ['service']
}
# Convert external metric class to cephlm metric class
result = base_result.child(name=name, dimensions=dimensions)
result.value = HPssaCli._get_severity_level(entry.value)
ceph_results.append(result)
return ceph_results
def check_monitor_connectivity():
"""
Display the connectivity of the Ceph cluster to each Monitor host
"""
base_result = MetricData(name='cephlm.connectivity.status',
messages={
'ok': 'Monitors {mons} are reachable.',
'warn':
'Monitor(s) {mons} is/are unreachable.',
'fail':
'Monitor(s) {mons} is/are unreachable.',
'unknown': 'Probe error: {msg}.'
})
try:
monitors = Cluster.get_monitors()
reachable, unreachable = \
Cluster._verify_monitor_connectivity(monitors)
except (CephLMException, CephCommandException) as e:
result = base_result.child(msgkeys={'msg': str(e)})
result.value = Severity.unknown
return result
if len(unreachable) == 0:
result = base_result.child(msgkeys={'mons': ', '.join(reachable)})
result.value = Severity.ok
else:
result = base_result.child(
msgkeys={'mons': ', '.join(unreachable)})
if len(reachable) == 0:
result.value = Severity.fail
else:
result.value = Severity.warn
return result
def test_response_child(self):
r = MetricData(name='name', messages={'a': 'b'})
r['test'] = 'test'
c = r.child(dimensions={'test2': 'test2'})
self.assertIn('test', c)
self.assertIn('test2', c)
self.assertDictEqual({'a': 'b'}, c.messages)
self.assertEqual('cephlm.name', c.name)
c = r.child()
self.assertIn('test', c)
self.assertNotIn('test2', c)
def test_child_msgkeys(self):
r = MetricData(name='name',
messages={
'ok': 'test message',
'test':
'test with meta {test_value} and {test_value2}',
})
c = r.child(dimensions={'test_value': '123'},
msgkeys={'test_value2': '456'})
c.message = 'test'
self.assertEqual('test with meta 123 and 456', str(c))
def main():
args = parse_args()
metrics = []
for func in args.selected:
try:
r = func()
if isinstance(r, list) and r and isinstance(r[0], MetricData):
metrics.extend([result.metric() for result in r])
elif isinstance(r, MetricData):
metrics.append(r.metric())
except: # noqa
t, v, tb = sys.exc_info()
backtrace = ' '.join(traceback.format_exception(t, v, tb))
r = MetricData.single('cephlm.probe.failure',
Severity.fail,
'{error} failed with: {check}',
dimensions={
'component': 'cephlm-probe',
'service': 'ceph-storage'
},
msgkeys={
'check': func.__module__,
'error': backtrace.replace('\n', ' ')
})
metrics.append(r.metric())
# There is no point in reporting multiple measurements of
# cephlm.probe.failure metric in same cycle.
check_failures_found = []
for metric in metrics:
if metric.get('metric') == 'cephlm.probe.failure':
check_failures_found.append(metric)
if check_failures_found:
# Remove all except one instance
for metric in check_failures_found[:-1]:
metrics.remove(metric)
else:
r = MetricData.single('cephlm.probe.failure',
Severity.ok,
'ok',
dimensions={
'component': 'cephlm-probe',
'service': 'ceph-storage'
})
metrics.append(r.metric())
FORMATS[args.format](metrics, args.pretty)
def test_create_metricdata(self):
r = MetricData(name='name', messages={})
self.assertEqual('cephlm.name', r.name)
self.assertEqual('', r.message)
self.assertEqual(None, r.value)
self.assertIn('hostname', r.dimensions)
def pool_stats():
"""
Publishes the pool statistics
"""
result = list()
INVALID_VALUE = -1
probe_failed = False
metric_dict = {
'count': 'count',
'total_objects': 'objects',
'usage_bytes': 'size_bytes',
'top_three_by_usage_bytes': 'top_pools_by_size',
'top_three_by_objects': 'top_pools_by_objects',
}
try:
pool_dict = Pool._stats()
except (exc.CephLMException, exc.CephCommandException,
exc.CephCommandTimeoutException) as e:
probe_failed = True
msg = str(e)
for metric_name, state in metric_dict.iteritems():
name = "cephlm.pool.%s" % metric_name
if probe_failed:
value = INVALID_VALUE
elif 'top_three' in metric_name:
msg, value = Pool._pools_by_metric(pool_dict, state)
else:
msg, value = Pool._return_total_metrics(pool_dict, state)
base_result = MetricData.single(name, value, message=msg)
result.append(base_result)
return result
def osd_stats():
"""
Publishes the osd statistics
"""
metric_dict = {
'up': OSD._up_count,
'up_out': OSD._up_out_count,
'down': OSD._down_count,
'down_in': OSD._down_in_count,
'total': OSD._total_count
}
INVALID_VALUE = -1
result = list()
probe_failed = False
try:
osd_stats = OSD._stats()
except (exc.CephLMException, exc.CephCommandException,
exc.CephCommandTimeoutException) as e:
probe_failed = True
for metric_state, func in metric_dict.iteritems():
name = "cephlm.osd.%s_count" % metric_state
if probe_failed:
value = INVALID_VALUE
msg = "Probe error: Command 'ceph osd tree' failed"
else:
value, msg = func(osd_stats)
msg = "OSD(s) %s" % msg if msg else "No OSD(s)"
msg += " is/are in cluster" if metric_state == 'total' \
else " is/are %s" % metric_state
base_result = MetricData.single(name, value, message=msg)
result.append(base_result)
return result
def check_nic_speed():
"""
Checks for optimal nic speed requirement in a ceph node [Run as root]
"""
base_result = MetricData(name='cephlm.perfscale.nic_speed',
messages={
'ok': '{msg}',
'warn': '{msg}',
'unknown': 'Probe error: {msg}'
})
try:
nic_info = get_nic_info()
ceph_bindings = get_ceph_bind_ips()
except CephCommandException as e:
result = base_result.child(msgkeys={'msg': str(e)})
result.value = Severity.unknown
return result
# Public IP will always exist for a ceph node irrespective of the
# network model. It is the network on which ceph client calls are made
public_ip = ceph_bindings.get('public_ip', None)
# Private IP or Cluster IP will exist only for OSD nodes provided the
# deployment follows multi-network model
private_ip = ceph_bindings.get('private_ip', None)
nic_speeds = PerfScale._process_nic_speed(public_ip, private_ip,
nic_info)
shared_external_net = PerfScale._has_shared_external_networks(
public_ip, private_ip, nic_info)
metrics = list()
for entry in ceph_bindings:
ip = ceph_bindings[entry]
severity, msg = PerfScale._format_nic_speed_status(
ip, nic_speeds[ip], shared_external_net)
metric = base_result.child(msgkeys={'msg': msg})
metric.name = 'cephlm.perfscale.nic_speed_%s' \
% entry.replace('_ip', '')
metric.value = severity
metrics.append(metric)
return metrics
def test_dict_behaviour(self):
r = MetricData(name='name', messages={})
r['test'] = 1000
# dimension values must be strings so we check they are converted
# properly
self.assertEqual('1000', r['test'])
del r['test']
self.assertNotIn('test', r)
def check_osd_node_ram():
"""
Checks for optimal memory requirement in a Ceph OSD node [Run as root]
"""
base_result = MetricData(
name='cephlm.perfscale.osd_node_ram',
messages={
'ok':
'Host RAM({ram}GiB) meets %s GiB per TiB of data disk'
'({total_osd_size}TiB) guideline.' %
PerfScale.GiB_PER_TiB_DATA,
'warn':
'Host RAM({ram}GiB) violates %s GiB per TiB of data disk' # noqa
'({total_osd_size}TiB) guideline.' %
PerfScale.GiB_PER_TiB_DATA,
'unknown':
'Probe error: {msg}'
})
try:
journal_disks, data_disks = Ceph.get_ceph_disk_list()
mem_info = get_system_memory_info()
disks_info = get_system_disks_size()
except (CephLMException, CephCommandException) as e:
result = base_result.child(msgkeys={'msg': str(e)})
result.value = Severity.unknown
return result
total_osd_size, ram = PerfScale._process_osd_ram_data(
data_disks, disks_info, mem_info)
if not data_disks:
# Ideally this check will not be run on non OSD nodes, but in case
# it does, we return an empty list
return list()
result = base_result.child(msgkeys={
'ram': '%s' % ram,
'total_osd_size': '%s' % total_osd_size
})
result.value = PerfScale._process_osd_ram_status(total_osd_size, ram)
return result
def check_status():
"""
Reports the status of the rados gateway service
"""
base_result = MetricData(
name='cephlm.radosgw.status',
messages={
'ok': 'Radosgw ({ip_port}) is in healthy state.',
'fail': 'Radosgw ({ip_port}) is in error state.',
'unknown': 'Probe error: {msg}.'
})
try:
ip_port = Radosgw._fetch_radosgw_ip_port()
status_success = Radosgw.get_status(ip_port)
except (CephLMException, CephCommandException) as e:
result = base_result.child(msgkeys={'msg': str(e)})
result.value = Severity.unknown
return result
result = base_result.child(msgkeys={'ip_port': ip_port})
result.value = Severity.ok if status_success else Severity.fail
return result
class HPssaCliData:
MOCK_BASE_RESULT = MetricData(
name='swiftlm.hpssacli',
messages={
'no_battery': 'No cache battery',
'unknown': 'hpssacli command failed',
'controller_status': '{sub_component} status is {status}',
'in_hba_mode': 'Controller is in HBA mode;'
' performance will be poor',
'physical_drive': 'Drive {serial_number}: '
'{box}:{bay} has status: {status}',
'l_drive': 'Logical Drive {logical_drive} has status: {status}',
'l_cache': 'Logical Drive {logical_drive}'
' has cache status: {caching}',
'ok': 'OK',
'fail': 'FAIL',
}
)
MOCK_CHILD_FLOAT = MOCK_BASE_RESULT.child()
MOCK_CHILD_FLOAT.name = 'swiftlm.hp_hardware.hpssacli.smart_array.firmware'
MOCK_CHILD_FLOAT.value = 3.0
MOCK_CHILD_FLOAT.dimensions = {'component': 'controller',
'controller_slot': '1',
'hostname': 'ardana-ccp-ceph0001-clm',
'model': 'Smart HBA H240',
'service': 'object-storage'}
MOCK_CHILD_OK = MOCK_BASE_RESULT.child()
MOCK_CHILD_OK.name = 'swiftlm.hp_hardware.hpssacli.smart_array'
MOCK_CHILD_OK.value = Severity.ok
MOCK_CHILD_OK.dimensions = {'component': 'controller',
'sub_component': 'controller_not_hba_mode',
'controller_slot': '1',
'hostname': 'ardana-ccp-ceph0001-clm',
'model': 'Smart HBA H240',
'service': 'object-storage'}
MOCK_CHILD_FAIL = MOCK_BASE_RESULT.child()
MOCK_CHILD_FAIL.name = 'swiftlm.hp_hardware.hpssacli.smart_array'
MOCK_CHILD_FAIL.value = Severity.fail
MOCK_CHILD_FAIL.dimensions = {'component': 'controller',
'sub_component': 'battery_capacitor_status',
'controller_slot': '1',
'hostname': 'ardana-ccp-ceph0001-clm',
'model': 'Smart HBA H240',
'service': 'object-storage'}
MOCK_RESPONSE = [MOCK_CHILD_FLOAT, MOCK_CHILD_OK, MOCK_CHILD_FAIL]
def check_osd_journal_ratio():
"""
Checks the ratio of osd disks mapped to journal disks
"""
base_result = MetricData(name='cephlm.osd.osd_journal_ratio',
messages={
'ok':
'OSDs abide %s:1 OSD to Journal ratio' %
OSD.OPTIMAL_OSD_PER_JOURNAL,
'warn':
'{msg}',
'unknown':
'Probe error: {msg}'
})
try:
journal_disks, data_disks = OSD.get_ceph_disk_list()
except (exc.CephLMException, exc.CephCommandException) as e:
result = base_result.child(msgkeys={'msg': str(e)})
result.value = Severity.unknown
return result
# Set metric to warning state when there is both journal and data
# partition on a given disk
shared_osd_journals = \
set(journal_disks.keys()).intersection(set(data_disks.keys()))
# Set metric to warning state when the number of OSDs mapped to a given
# journal disk exceeds the recommended limit
non_optimal_disks = {
key: val
for key, val in journal_disks.iteritems()
if len(val) > OSD.OPTIMAL_OSD_PER_JOURNAL
}
return OSD._process_journal_status(base_result, shared_osd_journals,
non_optimal_disks)
def pg_stats():
"""
Function to aggregate all metrics
"""
msg = ''
INVALID_VALUE = -1
probe_failed = False
try:
pg_stats = PG._stats()
except (exc.CephLMException, exc.CephCommandException,
exc.CephCommandTimeoutException) as e:
probe_failed = True
msg = 'Probe error: ' + str(e)
if probe_failed:
value = INVALID_VALUE
else:
value = pg_stats.pop('count')
for pg_state, count in pg_stats.iteritems():
msg += '%s=%s, ' % (pg_state, count)
msg = msg[:-2]
name = "cephlm.pg.count"
base_result = MetricData.single(name, value, message=msg)
return base_result
def capacity_stats():
"""
Publishes the capacity statistics
"""
metric_list = ['total_bytes', 'used_bytes',
'available_bytes', 'perc_utilization']
msg = ''
result = list()
capacity_dict = dict()
INVALID_VALUE = -1
probe_failed = False
try:
capacity_dict = Capacity._stats()
except (exc.CephLMException, exc.CephCommandException,
exc.CephCommandTimeoutException) as e:
probe_failed = True
msg = str(e)
for metric_name in metric_list:
name = "cephlm.capacity.%s" % metric_name
value = capacity_dict[metric_name] \
if not probe_failed else INVALID_VALUE
base_result = MetricData.single(name, value, message=msg)
result.append(base_result)
return result
def test_message(self):
r = MetricData(name='name',
messages={
'ok': 'test message',
'test':
'test with meta {test_value} and {test_value2}',
})
# Test automatic message assignment when a the Status Enum is used
# as the value
self.assertEqual('', r.message)
r.value = Severity.ok
self.assertEqual('test message', r.message)
# Test that an error is raised when trying to use a message without
# providing all of the dimension values first.
with self.assertRaisesRegexp(ValueError, 'requires a dimension or'):
r.message = 'test'
r['test_value'] = '123'
r.msgkey('test_value2', '456')
r.message = 'test'
self.assertEqual('test with meta 123 and 456', str(r))
def test_equality_behaviour(self):
m_a = MetricData('name', self.messages, self.dimensions)
m_b = MetricData('name', self.messages, self.dimensions)
self.assertEqual(m_a, m_b)
m_a = MetricData('name', self.messages, self.dimensions)
m_b = MetricData('not-name', self.messages, self.dimensions)
self.assertNotEqual(m_a, m_b)
m_a = MetricData('name', {'a': 1}, self.dimensions)
m_b = MetricData('name', {'b': 2}, self.dimensions)
self.assertEqual(
m_a, m_b, 'Message dictionaries should not '
'affect equality of MetricData instances')
m_a = MetricData('name', self.messages, self.dimensions)
m_b = MetricData('name', self.messages, {})
self.assertNotEqual(m_a, m_b)
m_a = MetricData('name', self.messages, self.dimensions)
m_b = MetricData('name', self.messages, self.dimensions)
m_a.message = 'ok'
m_b.message = 'fail'
self.assertNotEqual(m_a, m_b)
m_a = MetricData('name', self.messages, self.dimensions)
m_b = MetricData('name', self.messages, self.dimensions)
m_a.value = 1
m_b.value = 2
self.assertNotEqual(m_a, m_b)
