cassandra cluster no load-balancing policy
monasca-api connect to cassandra cluster without load-balancing policy parameter. Task: 29958 Story: 2005196 Change-Id: Ia740f20f6b8d557a74a48cd0c78cd07c1500ca94
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@ -23,6 +23,8 @@ import urllib
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from cassandra.auth import PlainTextAuthProvider
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from cassandra.cluster import Cluster
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from cassandra.cluster import DCAwareRoundRobinPolicy
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from cassandra.cluster import TokenAwarePolicy
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from cassandra.query import FETCH_SIZE_UNSET
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from cassandra.query import SimpleStatement
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from monasca_common.rest import utils as rest_utils
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@ -120,7 +122,12 @@ class MetricsRepository(metrics_repository.AbstractMetricsRepository):
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auth_provider = None
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self.cluster = Cluster(self.conf.cassandra.contact_points,
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port=self.conf.cassandra.port, auth_provider=auth_provider)
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port=self.conf.cassandra.port,
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auth_provider=auth_provider,
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load_balancing_policy=TokenAwarePolicy(
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DCAwareRoundRobinPolicy(
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local_dc=self.conf.cassandra.local_data_center))
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)
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self.session = self.cluster.connect(self.conf.cassandra.keyspace)
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self.dim_val_by_metric_stmt = self.session.prepare(DIMENSION_VALUE_BY_METRIC_CQL)
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@ -40,6 +40,10 @@ Cassandra user for monasca-api service
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cfg.StrOpt('password', default='', secret=True,
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help='''
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Cassandra user password for monasca-api service
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'''),
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cfg.StrOpt('local_data_center', default='',
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help='''
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Cassandra local data center name
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''')
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]
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@ -0,0 +1,5 @@
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---
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features:
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- |
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support cassandra cluster configuration with loadbalancing policy DCAwareRoundRobinPolicy.
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'local_data_center' defalut value is ''.
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