openstack/monasca-persister
Code Issues Proposed changes

Update pep8 checks

Browse Source 
* Update max line length to 100
* Clean up codes for pep8 checks from tox.ini

Change-Id: I974c0c31dc51784506cbf54b87bc450f2334845e
Signed-off-by: Jui Chandwaskar <jchandwaskar@op5.com>
This commit is contained in:
Jui Chandwaskar 2018-04-11 16:21:51 +02:00
parent c567f52f1b
commit 6abefff1b2
16 changed files with 150 additions and 109 deletions
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47
monasca_persister/conf/elasticsearch.py
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@ -18,27 +18,32 @@ from oslo_config import cfg
from monasca_persister.conf import types from monasca_persister.conf import types
elasticsearch_opts = [ elasticsearch_opts = [
cfg.StrOpt('index_name', cfg.StrOpt(
help='Index name where events are stored', 'index_name',
default='monevents'), help='Index name where events are stored',
cfg.ListOpt('hosts', default='monevents'),
help='List of Elasticsearch nodes in format host[:port]', cfg.ListOpt(
default=['localhost:9200'], 'hosts',
item_type=types.HostAddressPortType()), help='List of Elasticsearch nodes in format host[:port]',
cfg.BoolOpt('sniff_on_start', default=['localhost:9200'],
help='Flag indicating whether to obtain a list of nodes from the cluser at startup time', item_type=types.HostAddressPortType()),
default=False), cfg.BoolOpt(
cfg.BoolOpt('sniff_on_connection_fail', 'sniff_on_start',
help='Flag controlling if connection failure triggers a sniff', help='Flag indicating whether to obtain a list of nodes from the cluser at startup time',
default=False), default=False),
cfg.IntOpt('sniffer_timeout', cfg.BoolOpt(
help='Number of seconds between automatic sniffs', 'sniff_on_connection_fail',
default=None), help='Flag controlling if connection failure triggers a sniff',
cfg.IntOpt('max_retries', default=False),
help='Maximum number of retries before an exception is propagated', cfg.IntOpt(
default=3, 'sniffer_timeout',
min=1) help='Number of seconds between automatic sniffs',
] default=None),
cfg.IntOpt(
'max_retries',
help='Maximum number of retries before an exception is propagated',
default=3,
min=1)]
elasticsearch_group = cfg.OptGroup(name='elasticsearch', title='elasticsearch') elasticsearch_group = cfg.OptGroup(name='elasticsearch', title='elasticsearch')

7
monasca_persister/conf/kafka_alarm_history.py
View File

@ -42,9 +42,10 @@ kafka_alarm_history_opts = [
cfg.StrOpt('zookeeper_path', cfg.StrOpt('zookeeper_path',
help='Path in zookeeper for kafka consumer group partitioning algorithm', help='Path in zookeeper for kafka consumer group partitioning algorithm',
default='/persister_partitions/$kafka_alarm_history.topic'), default='/persister_partitions/$kafka_alarm_history.topic'),
cfg.IntOpt('batch_size', cfg.IntOpt(
help='Maximum number of alarm state history messages to buffer before writing to database', 'batch_size',
default=1), help='Maximum number of alarm state history messages to buffer before writing to database',
default=1),
] ]

24
monasca_persister/conf/repositories.py
View File

@ -17,15 +17,21 @@
from oslo_config import cfg from oslo_config import cfg
repositories_opts = [ repositories_opts = [
cfg.StrOpt(name='metrics_driver', cfg.StrOpt(
help='The repository driver to use for metrics', name='metrics_driver',
default='monasca_persister.repositories.influxdb.metrics_repository:MetricInfluxdbRepository'), help='The repository driver to use for metrics',
cfg.StrOpt(name='alarm_state_history_driver', default=('monasca_persister.repositories.influxdb.metrics_repository:'
help='The repository driver to use for alarm state history', 'MetricInfluxdbRepository')),
default='monasca_persister.repositories.influxdb.metrics_repository:MetricInfluxdbRepository'), cfg.StrOpt(
cfg.StrOpt(name='events_driver', name='alarm_state_history_driver',
help='The repository driver to use for events', help='The repository driver to use for alarm state history',
default='monasca_persister.repositories.elasticsearch.events_repository:ElasticSearchEventsRepository')] default=('monasca_persister.repositories.influxdb.metrics_repository:'
'MetricInfluxdbRepository')),
cfg.StrOpt(
name='events_driver',
help='The repository driver to use for events',
default=('monasca_persister.repositories.elasticsearch.events_repository:'
'ElasticSearchEventsRepository'))]
repositories_group = cfg.OptGroup(name='repositories', repositories_group = cfg.OptGroup(name='repositories',
title='repositories') title='repositories')

3
monasca_persister/persister.py
View File

@ -61,7 +61,8 @@ def clean_exit(signum, frame=None):
for process in processors: for process in processors:
try: try:
if process.is_alive(): if process.is_alive():
process.terminate() # Sends sigterm which any processes after a notification is sent attempt to handle # Sends sigterm which any processes after a notification is sent attempt to handle
process.terminate()
wait_for_exit = True wait_for_exit = True
except Exception: # nosec except Exception: # nosec
# There is really nothing to do if the kill fails, so just go on. # There is really nothing to do if the kill fails, so just go on.

7
monasca_persister/repositories/cassandra/alarm_state_history_repository.py
View File

@ -25,9 +25,10 @@ from monasca_persister.repositories.utils import parse_alarm_state_hist_message
LOG = log.getLogger(__name__) LOG = log.getLogger(__name__)
UPSERT_CQL = ('update monasca.alarm_state_history USING TTL ? ' UPSERT_CQL = (
'set metric = ?, old_state = ?, new_state = ?, sub_alarms = ?, reason = ?, reason_data = ? ' 'update monasca.alarm_state_history USING TTL ? '
'where tenant_id = ? and alarm_id = ? and time_stamp = ?') 'set metric = ?, old_state = ?, new_state = ?, sub_alarms = ?, reason = ?, reason_data = ? '
'where tenant_id = ? and alarm_id = ? and time_stamp = ?')
class AlarmStateHistCassandraRepository(abstract_repository.AbstractCassandraRepository): class AlarmStateHistCassandraRepository(abstract_repository.AbstractCassandraRepository):

3
monasca_persister/repositories/cassandra/connection_util.py
View File

@ -47,5 +47,6 @@ def create_cluster():
def create_session(cluster): def create_session(cluster):
session = cluster.connect(conf.cassandra.keyspace) session = cluster.connect(conf.cassandra.keyspace)
session.default_timeout = conf.cassandra.read_timeout session.default_timeout = conf.cassandra.read_timeout
session.default_consistency_level = ConsistencyLevel.name_to_value[conf.cassandra.consistency_level] session.default_consistency_level = \
ConsistencyLevel.name_to_value[conf.cassandra.consistency_level]
return session return session

26
monasca_persister/repositories/cassandra/metric_batch.py
View File

@ -68,7 +68,10 @@ class MetricBatch(object):
self.batch_query_by_replicas(bound_stmt, self.measurement_queries) self.batch_query_by_replicas(bound_stmt, self.measurement_queries)
def batch_query_by_replicas(self, bound_stmt, query_map): def batch_query_by_replicas(self, bound_stmt, query_map):
hosts = tuple(self.lb_policy.make_query_plan(working_keyspace=bound_stmt.keyspace, query=bound_stmt)) hosts = tuple(
self.lb_policy.make_query_plan(
working_keyspace=bound_stmt.keyspace,
query=bound_stmt))
queue = query_map.get(hosts, None) queue = query_map.get(hosts, None)
if not queue: if not queue:
@ -96,18 +99,21 @@ class MetricBatch(object):
@staticmethod @staticmethod
def log_token_batch_map(name, query_map): def log_token_batch_map(name, query_map):
LOG.info('%s : Size: %s; Tokens: |%s|' % (name, len(query_map), LOG.info('%s : Size: %s; Tokens: |%s|' %
'|'.join(['%s: %s' % ( (name, len(query_map),
token, '|'.join(['%s: %s' % (
','.join([str(counter.value()) for (batch, counter) in queue])) token,
for token, queue in query_map.items()]))) ','.join([str(counter.value()) for (batch, counter) in queue]))
for token, queue in query_map.items()])))
@staticmethod @staticmethod
def log_replica_batch_map(name, query_map): def log_replica_batch_map(name, query_map):
LOG.info('%s : Size: %s; Replicas: |%s|' % (name, len(query_map), '|'.join([ LOG.info('%s : Size: %s; Replicas: |%s|' %
'%s: %s' % ( (name, len(query_map), '|'.join([
','.join([h.address for h in hosts]), ','.join([str(counter.value()) for (batch, counter) in queue])) '%s: %s' % (
for hosts, queue in query_map.items()]))) ','.join([h.address for h in hosts]),
','.join([str(counter.value()) for (batch, counter) in queue]))
for hosts, queue in query_map.items()])))
def get_all_batches(self): def get_all_batches(self):
self.log_token_batch_map("metric batches", self.metric_queries) self.log_token_batch_map("metric batches", self.metric_queries)

79
monasca_persister/repositories/cassandra/metrics_repository.py
View File

@ -31,9 +31,10 @@ from monasca_persister.repositories.utils import parse_measurement_message
LOG = log.getLogger(__name__) LOG = log.getLogger(__name__)
MEASUREMENT_INSERT_CQL = ('update monasca.measurements USING TTL ? ' MEASUREMENT_INSERT_CQL = (
'set value = ?, value_meta = ?, region = ?, tenant_id = ?, metric_name = ?, dimensions = ? ' 'update monasca.measurements USING TTL ? '
'where metric_id = ? and time_stamp = ?') 'set value = ?, value_meta = ?, region = ?, tenant_id = ?, metric_name = ?, dimensions = ? '
'where metric_id = ? and time_stamp = ?')
MEASUREMENT_UPDATE_CQL = ('update monasca.measurements USING TTL ? ' MEASUREMENT_UPDATE_CQL = ('update monasca.measurements USING TTL ? '
'set value = ?, value_meta = ? where metric_id = ? and time_stamp = ?') 'set value = ?, value_meta = ? where metric_id = ? and time_stamp = ?')
@ -66,8 +67,16 @@ RETRIEVE_METRIC_DIMENSION_CQL = ('select region, tenant_id, metric_name, '
'WHERE token(region, tenant_id, metric_name) > ? ' 'WHERE token(region, tenant_id, metric_name) > ? '
'and token(region, tenant_id, metric_name) <= ? ') 'and token(region, tenant_id, metric_name) <= ? ')
Metric = namedtuple('Metric', ['id', 'region', 'tenant_id', 'name', 'dimension_list', 'dimension_names', Metric = namedtuple('Metric',
'time_stamp', 'value', 'value_meta']) ['id',
'region',
'tenant_id',
'name',
'dimension_list',
'dimension_names',
'time_stamp',
'value',
'value_meta'])
class MetricCassandraRepository(abstract_repository.AbstractCassandraRepository): class MetricCassandraRepository(abstract_repository.AbstractCassandraRepository):
@ -101,7 +110,10 @@ class MetricCassandraRepository(abstract_repository.AbstractCassandraRepository)
self._retrieve_metric_dimension_stmt = self._session.prepare(RETRIEVE_METRIC_DIMENSION_CQL) self._retrieve_metric_dimension_stmt = self._session.prepare(RETRIEVE_METRIC_DIMENSION_CQL)
self._metric_batch = MetricBatch(self._cluster.metadata, self._cluster.load_balancing_policy, self._max_batches) self._metric_batch = MetricBatch(
self._cluster.metadata,
self._cluster.load_balancing_policy,
self._max_batches)
self._metric_id_cache = LRUCache(self._cache_size) self._metric_id_cache = LRUCache(self._cache_size)
self._dimension_cache = LRUCache(self._cache_size) self._dimension_cache = LRUCache(self._cache_size)
@ -178,34 +190,29 @@ class MetricCassandraRepository(abstract_repository.AbstractCassandraRepository)
self._metric_batch.add_dimension_query(dimension_bound_stmt) self._metric_batch.add_dimension_query(dimension_bound_stmt)
self._dimension_cache[dim_key] = dim_key self._dimension_cache[dim_key] = dim_key
metric_dim_key = self._get_metric_dimnesion_key(metric.region, metric.tenant_id, metric.name, name, metric_dim_key = self._get_metric_dimnesion_key(
value) metric.region, metric.tenant_id, metric.name, name, value)
if not self._metric_dimension_cache.get(metric_dim_key, None): if not self._metric_dimension_cache.get(metric_dim_key, None):
dimension_metric_bound_stmt = self._dimension_metric_stmt.bind((metric.region, dimension_metric_bound_stmt = self._dimension_metric_stmt.bind(
metric.tenant_id, (metric.region, metric.tenant_id, name, value, metric.name))
name,
value,
metric.name))
self._metric_batch.add_dimension_metric_query(dimension_metric_bound_stmt) self._metric_batch.add_dimension_metric_query(dimension_metric_bound_stmt)
metric_dimension_bound_stmt = self._metric_dimension_stmt.bind((metric.region, metric_dimension_bound_stmt = self._metric_dimension_stmt.bind(
metric.tenant_id, (metric.region, metric.tenant_id, metric.name, name, value))
metric.name,
name,
value))
self._metric_batch.add_metric_dimension_query(metric_dimension_bound_stmt) self._metric_batch.add_metric_dimension_query(metric_dimension_bound_stmt)
self._metric_dimension_cache[metric_dim_key] = metric_dim_key self._metric_dimension_cache[metric_dim_key] = metric_dim_key
measurement_insert_bound_stmt = self._measurement_insert_stmt.bind((self._retention, measurement_insert_bound_stmt = self._measurement_insert_stmt.bind(
metric.value, (self._retention,
metric.value_meta, metric.value,
metric.region, metric.value_meta,
metric.tenant_id, metric.region,
metric.name, metric.tenant_id,
metric.dimension_list, metric.name,
id_bytes, metric.dimension_list,
metric.time_stamp)) id_bytes,
metric.time_stamp))
self._metric_batch.add_measurement_query(measurement_insert_bound_stmt) self._metric_batch.add_measurement_query(measurement_insert_bound_stmt)
return metric return metric
@ -240,7 +247,9 @@ class MetricCassandraRepository(abstract_repository.AbstractCassandraRepository)
key = self._get_dimnesion_key(row.region, row.tenant_id, row.name, row.value) key = self._get_dimnesion_key(row.region, row.tenant_id, row.name, row.value)
self._dimension_cache[key] = key self._dimension_cache[key] = key
LOG.info("loaded %s dimension entries cache from database into cache." % self._dimension_cache.currsize) LOG.info(
"loaded %s dimension entries cache from database into cache." %
self._dimension_cache.currsize)
@staticmethod @staticmethod
def _get_dimnesion_key(region, tenant_id, name, value): def _get_dimnesion_key(region, tenant_id, name, value):
@ -258,16 +267,22 @@ class MetricCassandraRepository(abstract_repository.AbstractCassandraRepository)
cnt = 0 cnt = 0
for row in rows: for row in rows:
key = self._get_metric_dimnesion_key(row.region, row.tenant_id, row.metric_name, row.dimension_name, key = self._get_metric_dimnesion_key(
row.dimension_value) row.region,
row.tenant_id,
row.metric_name,
row.dimension_name,
row.dimension_value)
self._metric_dimension_cache[key] = key self._metric_dimension_cache[key] = key
cnt += 1 cnt += 1
LOG.info("loaded %s metric dimension entries from database into cache." % cnt) LOG.info("loaded %s metric dimension entries from database into cache." % cnt)
LOG.info( LOG.info(
"total loaded %s metric dimension entries in cache." % self._metric_dimension_cache.currsize) "total loaded %s metric dimension entries in cache." %
self._metric_dimension_cache.currsize)
@staticmethod @staticmethod
def _get_metric_dimnesion_key(region, tenant_id, metric_name, dimension_name, dimension_value): def _get_metric_dimnesion_key(region, tenant_id, metric_name, dimension_name, dimension_value):
return '%s\0%s\0%s\0%s\0%s' % (region, tenant_id, metric_name, dimension_name, dimension_value) return '%s\0%s\0%s\0%s\0%s' % (region, tenant_id, metric_name,
dimension_name, dimension_value)

6
monasca_persister/repositories/cassandra/retry_policy.py
View File

@ -46,4 +46,8 @@ class MonascaRetryPolicy(RetryPolicy):
def on_unavailable(self, query, consistency, required_replicas, alive_replicas, retry_num): def on_unavailable(self, query, consistency, required_replicas, alive_replicas, retry_num):
return (self.RETRY_NEXT_HOST, consistency) if retry_num < self.unavailable_attempts else (self.RETHROW, None) return (
self.RETRY_NEXT_HOST,
consistency) if retry_num < self.unavailable_attempts else (
self.RETHROW,
None)

3
monasca_persister/repositories/cassandra/token_range_query_manager.py
View File

@ -63,5 +63,6 @@ class TokenRangeQueryManager(object):
def execute_query_token_range(token_range): def execute_query_token_range(token_range):
results = TokenRangeQueryManager.session.execute(TokenRangeQueryManager.prepared.bind(token_range)) results = TokenRangeQueryManager.session.execute(
TokenRangeQueryManager.prepared.bind(token_range))
TokenRangeQueryManager.result_handler(results) TokenRangeQueryManager.result_handler(results)

4
monasca_persister/repositories/influxdb/alarm_state_history_repository.py
View File

@ -24,7 +24,7 @@ LOG = log.getLogger(__name__)
class AlarmStateHistInfluxdbRepository( class AlarmStateHistInfluxdbRepository(
abstract_repository.AbstractInfluxdbRepository): abstract_repository.AbstractInfluxdbRepository):
def __init__(self): def __init__(self):
@ -36,7 +36,7 @@ class AlarmStateHistInfluxdbRepository(
lifecycle_state, state_change_reason, lifecycle_state, state_change_reason,
sub_alarms_json_snake_case, tenant_id, sub_alarms_json_snake_case, tenant_id,
time_stamp) = parse_alarm_state_hist_message( time_stamp) = parse_alarm_state_hist_message(
message) message)
name = u'alarm_state_history' name = u'alarm_state_history'
fields = [] fields = []

3
monasca_persister/repositories/influxdb/metrics_repository.py
View File

@ -55,7 +55,8 @@ class MetricInfluxdbRepository(abstract_repository.AbstractInfluxdbRepository):
value_field = u'value={}'.format(value) value_field = u'value={}'.format(value)
value_meta_field = u'value_meta=' + value_meta_str value_meta_field = u'value_meta=' + value_meta_str
data = key_values + u' ' + value_field + u',' + value_meta_field + u' ' + str(int(time_stamp)) data = key_values + u' ' + value_field + u',' + \
value_meta_field + u' ' + str(int(time_stamp))
LOG.debug(data) LOG.debug(data)

24
monasca_persister/repositories/persister.py
View File

@ -33,14 +33,14 @@ class Persister(object):
self._batch_size = kafka_conf.batch_size self._batch_size = kafka_conf.batch_size
self._consumer = consumer.KafkaConsumer( self._consumer = consumer.KafkaConsumer(
kafka_conf.uri, kafka_conf.uri,
zookeeper_conf.uri, zookeeper_conf.uri,
kafka_conf.zookeeper_path, kafka_conf.zookeeper_path,
kafka_conf.group_id, kafka_conf.group_id,
kafka_conf.topic, kafka_conf.topic,
repartition_callback=self._flush, repartition_callback=self._flush,
commit_callback=self._flush, commit_callback=self._flush,
commit_timeout=kafka_conf.max_wait_time_seconds) commit_timeout=kafka_conf.max_wait_time_seconds)
self.repository = repository() self.repository = repository()
@ -52,7 +52,7 @@ class Persister(object):
self.repository.write_batch(self._data_points) self.repository.write_batch(self._data_points)
LOG.info("Processed {} messages from topic '{}'".format( LOG.info("Processed {} messages from topic '{}'".format(
len(self._data_points), self._kafka_topic)) len(self._data_points), self._kafka_topic))
self._data_points = [] self._data_points = []
self._consumer.commit() self._consumer.commit()
@ -79,7 +79,7 @@ class Persister(object):
self._flush() self._flush()
except Exception: except Exception:
LOG.exception( LOG.exception(
'Persister encountered fatal exception processing ' 'Persister encountered fatal exception processing '
'messages. ' 'messages. '
'Shutting down all threads and exiting') 'Shutting down all threads and exiting')
os._exit(1) os._exit(1)

16
monasca_persister/repositories/utils.py
View File

@ -78,21 +78,21 @@ def parse_alarm_state_hist_message(message):
sub_alarms_json = json.dumps(sub_alarms, ensure_ascii=False) sub_alarms_json = json.dumps(sub_alarms, ensure_ascii=False)
sub_alarms_json_snake_case = sub_alarms_json.replace( sub_alarms_json_snake_case = sub_alarms_json.replace(
'"subAlarmExpression":', '"subAlarmExpression":',
'"sub_alarm_expression":') '"sub_alarm_expression":')
sub_alarms_json_snake_case = sub_alarms_json_snake_case.replace( sub_alarms_json_snake_case = sub_alarms_json_snake_case.replace(
'"currentValues":', '"currentValues":',
'"current_values":') '"current_values":')
# jobrs: I do not think that this shows up # jobrs: I do not think that this shows up
sub_alarms_json_snake_case = sub_alarms_json_snake_case.replace( sub_alarms_json_snake_case = sub_alarms_json_snake_case.replace(
'"metricDefinition":', '"metricDefinition":',
'"metric_definition":') '"metric_definition":')
sub_alarms_json_snake_case = sub_alarms_json_snake_case.replace( sub_alarms_json_snake_case = sub_alarms_json_snake_case.replace(
'"subAlarmState":', '"subAlarmState":',
'"sub_alarm_state":') '"sub_alarm_state":')
else: else:
sub_alarms_json_snake_case = "[]" sub_alarms_json_snake_case = "[]"

2
monasca_persister/tests/test_persister_main.py
View File

@ -119,7 +119,7 @@ class TestPersister(base.BaseTestCase):
def test_active_children_are_killed_during_exit(self): def test_active_children_are_killed_during_exit(self):
with patch.object(self.persister.multiprocessing, 'active_children') as active_children,\ with patch.object(self.persister.multiprocessing, 'active_children') as active_children,\
patch.object(self.persister.os, 'kill') as mock_kill: patch.object(self.persister.os, 'kill') as mock_kill:
active_children.return_value = [Mock(name='child-1', pid=1), active_children.return_value = [Mock(name='child-1', pid=1),
Mock(name='child-2', pid=2)] Mock(name='child-2', pid=2)]

5
tox.ini
View File

@ -67,11 +67,10 @@ commands =
flake8 monasca_persister flake8 monasca_persister
[flake8] [flake8]
max-line-length = 120 max-line-length = 100
# TODO: ignored checks should be enabled in the future # TODO: ignored checks should be enabled in the future
# H405 multi line docstring summary not separated with an empty line # H405 multi line docstring summary not separated with an empty line
# H904 Wrap long lines in parentheses instead of a backslash ignore = F821,H405,H306,E302
ignore = F821,H405,H904,E126,E125,H306,E302,E122
exclude=.venv,.git,.tox,dist,*egg,build exclude=.venv,.git,.tox,dist,*egg,build
[bandit] [bandit]