161 lines
4.9 KiB
Python
161 lines
4.9 KiB
Python
# Copyright 2013-2016 DataStax, Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from __future__ import print_function
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import logging
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import time
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from collections import defaultdict
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from ccmlib.node import Node
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from cassandra.query import named_tuple_factory
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from tests.integration import get_node, get_cluster
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IP_FORMAT = '127.0.0.%s'
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log = logging.getLogger(__name__)
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class CoordinatorStats():
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def __init__(self):
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self.coordinator_counts = defaultdict(int)
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def add_coordinator(self, future):
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future.result()
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coordinator = future._current_host.address
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self.coordinator_counts[coordinator] += 1
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if future._errors:
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log.error('future._errors: %s', future._errors)
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def reset_counts(self):
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self.coordinator_counts = defaultdict(int)
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def get_query_count(self, node):
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ip = '127.0.0.%d' % node
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return self.coordinator_counts[ip]
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def assert_query_count_equals(self, testcase, node, expected):
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ip = '127.0.0.%d' % node
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if self.get_query_count(node) != expected:
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testcase.fail('Expected %d queries to %s, but got %d. Query counts: %s' % (
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expected, ip, self.coordinator_counts[ip], dict(self.coordinator_counts)))
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def create_schema(cluster, session, keyspace, simple_strategy=True,
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replication_factor=1, replication_strategy=None):
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row_factory = session.row_factory
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session.row_factory = named_tuple_factory
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if keyspace in cluster.metadata.keyspaces.keys():
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session.execute('DROP KEYSPACE %s' % keyspace, timeout=20)
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if simple_strategy:
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ddl = "CREATE KEYSPACE %s WITH replication" \
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" = {'class': 'SimpleStrategy', 'replication_factor': '%s'}"
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session.execute(ddl % (keyspace, replication_factor), timeout=10)
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else:
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if not replication_strategy:
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raise Exception('replication_strategy is not set')
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ddl = "CREATE KEYSPACE %s" \
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" WITH replication = { 'class' : 'NetworkTopologyStrategy', %s }"
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session.execute(ddl % (keyspace, str(replication_strategy)[1:-1]), timeout=10)
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ddl = 'CREATE TABLE %s.cf (k int PRIMARY KEY, i int)'
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session.execute(ddl % keyspace, timeout=10)
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session.execute('USE %s' % keyspace)
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session.row_factory = row_factory
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def start(node):
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get_node(node).start()
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def stop(node):
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get_node(node).stop()
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def force_stop(node):
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log.debug("Forcing stop of node %s", node)
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get_node(node).stop(wait=False, gently=False)
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log.debug("Node %s was stopped", node)
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def decommission(node):
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get_node(node).decommission()
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get_node(node).stop()
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def bootstrap(node, data_center=None, token=None):
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node_instance = Node('node%s' % node,
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get_cluster(),
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auto_bootstrap=False,
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thrift_interface=(IP_FORMAT % node, 9160),
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storage_interface=(IP_FORMAT % node, 7000),
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jmx_port=str(7000 + 100 * node),
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remote_debug_port=0,
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initial_token=token if token else node * 10)
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get_cluster().add(node_instance, is_seed=False, data_center=data_center)
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try:
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start(node)
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except:
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# Try only twice
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try:
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start(node)
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except:
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log.error('Added node failed to start twice.')
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def ring(node):
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get_node(node).nodetool('ring')
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def wait_for_up(cluster, node):
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tries = 0
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addr = IP_FORMAT % node
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while tries < 100:
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host = cluster.metadata.get_host(addr)
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if host and host.is_up:
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log.debug("Done waiting for node %s to be up", node)
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return
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else:
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log.debug("Host is still marked down, waiting")
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tries += 1
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time.sleep(1)
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# todo: don't mix string interpolation methods in the same package
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raise RuntimeError("Host {0} is not up after {1} attempts".format(addr, tries))
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def wait_for_down(cluster, node):
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log.debug("Waiting for node %s to be down", node)
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tries = 0
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addr = IP_FORMAT % node
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while tries < 100:
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host = cluster.metadata.get_host(IP_FORMAT % node)
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if not host or not host.is_up:
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log.debug("Done waiting for node %s to be down", node)
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return
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else:
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log.debug("Host is still marked up, waiting")
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tries += 1
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time.sleep(1)
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raise RuntimeError("Host {0} is not down after {1} attempts".format(addr, tries))
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