Python tools.new_node函数代码示例

    def _do_upgrade(self, login_keyspace=True):
        cluster = self.cluster
        node1 = cluster.nodelist()[0]

        node1.flush()
        time.sleep(.5)
        node1.stop(wait_other_notice=True)

        node1.set_install_dir(install_dir=self.default_install_dir)
        node1.start(wait_other_notice=True, wait_for_binary_proto=True)

        if self.bootstrap:
            cluster.set_install_dir(install_dir=self.default_install_dir)
            # Add a new node, bootstrap=True ensures that it is not a seed
            node2 = new_node(cluster, bootstrap=True)
            node2.start(wait_for_binary_proto=True, jvm_args=self.jvm_args)

            temp_files = self.glob_data_dirs(os.path.join('*', "tmp", "*.dat"))
            debug("temp files: " + str(temp_files))
            self.assertEquals(0, len(temp_files), "Temporary files were not cleaned up.")

        cursor = self.patient_cql_connection(node1)
        if login_keyspace:
            cursor.execute('USE ks')
        return cursor

    def decommissioned_wiped_node_can_join_test(self):
        """
        @jira_ticket CASSANDRA-9765
        Test that if we decommission a node and then wipe its data, it can join the cluster.
        """
        cluster = self.cluster
        cluster.populate(3)
        cluster.start(wait_for_binary_proto=True)

        stress_table = 'keyspace1.standard1'

        # write some data
        node1 = cluster.nodelist()[0]
        node1.stress(['write', 'n=10K', '-rate', 'threads=8'])

        session = self.patient_cql_connection(node1)
        original_rows = list(session.execute("SELECT * FROM {}".format(stress_table,)))

        # Add a new node, bootstrap=True ensures that it is not a seed
        node4 = new_node(cluster, bootstrap=True)
        node4.start(wait_for_binary_proto=True, wait_other_notice=True)

        session = self.patient_cql_connection(node4)
        self.assertEquals(original_rows, list(session.execute("SELECT * FROM {}".format(stress_table,))))

        # Decommission the new node and wipe its data
        node4.decommission()
        node4.stop()
        self._cleanup(node4)
        # Now start it, it should be allowed to join
        mark = node4.mark_log()
        node4.start(wait_other_notice=True)
        node4.watch_log_for("JOINING:", from_mark=mark)

    def disk_balance_bootstrap_test(self):
        cluster = self.cluster
        # apparently we have legitimate errors in the log when bootstrapping (see bootstrap_test.py)
        self.allow_log_errors = True
        cluster.set_configuration_options(values={'allocate_tokens_for_keyspace': 'keyspace1'})
        cluster.populate(4).start(wait_for_binary_proto=True)
        node1 = cluster.nodes['node1']

        node1.stress(['write', 'n=10k', '-rate', 'threads=100', '-schema', 'replication(factor=3)'])
        cluster.flush()
        node5 = new_node(cluster)
        node5.start(wait_for_binary_proto=True)
        self.assert_balanced(node5)

        cluster.cleanup()

        self.assert_balanced(node5)

        if DISABLE_VNODES:
            for node in cluster.nodelist():
                node.nodetool('relocatesstables')
            self.assertTrue(len(node5.grep_log("No sstables to RELOCATE for keyspace1.standard1")) > 0)

        for node in cluster.nodelist():
            self.assert_balanced(node)

    def add_node_after_mv_test(self):
        """Test that materialized views work as expected when adding a node."""

        session = self.prepare()

        session.execute("CREATE TABLE t (id int PRIMARY KEY, v int)")
        session.execute(("CREATE MATERIALIZED VIEW t_by_v AS SELECT * FROM t "
                         "WHERE v IS NOT NULL AND id IS NOT NULL PRIMARY KEY (v, id)"))

        for i in xrange(1000):
            session.execute("INSERT INTO t (id, v) VALUES ({v}, {v})".format(v=i))

        for i in xrange(1000):
            assert_one(session, "SELECT * FROM t_by_v WHERE v = {}".format(i), [i, i])

        node4 = new_node(self.cluster)
        node4.start(wait_for_binary_proto=True)

        session2 = self.patient_exclusive_cql_connection(node4)

        for i in xrange(1000):
            assert_one(session2, "SELECT * FROM ks.t_by_v WHERE v = {}".format(i), [i, i])

        for i in xrange(1000, 1100):
            session.execute("INSERT INTO t (id, v) VALUES ({v}, {v})".format(v=i))

        for i in xrange(1000, 1100):
            assert_one(session, "SELECT * FROM t_by_v WHERE v = {}".format(i), [i, i])

    def _wiped_node_cannot_join_test(self, gently):
        """
        @jira_ticket CASSANDRA-9765
        Test that if we stop a node and wipe its data then the node cannot join
        when it is not a seed. Test both a nice shutdown or a forced shutdown, via
        the gently parameter.
        """
        cluster = self.cluster
        cluster.populate(3)
        cluster.start(wait_for_binary_proto=True)

        stress_table = 'keyspace1.standard1'

        # write some data
        node1 = cluster.nodelist()[0]
        node1.stress(['write', 'n=10K', '-rate', 'threads=8'])

        session = self.patient_cql_connection(node1)
        original_rows = list(session.execute("SELECT * FROM {}".format(stress_table,)))

        # Add a new node, bootstrap=True ensures that it is not a seed
        node4 = new_node(cluster, bootstrap=True)
        node4.start(wait_for_binary_proto=True)

        session = self.patient_cql_connection(node4)
        self.assertEquals(original_rows, list(session.execute("SELECT * FROM {}".format(stress_table,))))

        # Stop the new node and wipe its data
        node4.stop(gently=gently)
        self._cleanup(node4)
        # Now start it, it should not be allowed to join.
        mark = node4.mark_log()
        node4.start(no_wait=True, wait_other_notice=False)
        node4.watch_log_for("A node with address /127.0.0.4 already exists, cancelling join", from_mark=mark)

    def bootstrap_with_reset_bootstrap_state_test(self):
        """Test bootstrap with resetting bootstrap progress"""

        cluster = self.cluster
        cluster.set_configuration_options(values={'stream_throughput_outbound_megabits_per_sec': 1})
        cluster.populate(2).start(wait_other_notice=True)

        node1 = cluster.nodes['node1']
        node1.stress(['write', 'n=100K', '-schema', 'replication(factor=2)'])
        node1.flush()

        # kill node1 in the middle of streaming to let it fail
        t = InterruptBootstrap(node1)
        t.start()

        # start bootstrapping node3 and wait for streaming
        node3 = new_node(cluster)
        try:
            node3.start()
        except NodeError:
            pass  # node doesn't start as expected
        t.join()
        node1.start()

        # restart node3 bootstrap with resetting bootstrap progress
        node3.stop()
        mark = node3.mark_log()
        node3.start(jvm_args=["-Dcassandra.reset_bootstrap_progress=true"])
        # check if we reset bootstrap state
        node3.watch_log_for("Resetting bootstrap progress to start fresh", from_mark=mark)
        # wait for node3 ready to query
        node3.watch_log_for("Listening for thrift clients...", from_mark=mark)

        # check if 2nd bootstrap succeeded
        assert_bootstrap_state(self, node3, 'COMPLETED')

    def decommissioned_wiped_node_can_gossip_to_single_seed_test(self):
        """
        @jira_ticket CASSANDRA-8072
        @jira_ticket CASSANDRA-8422
        Test that if we decommission a node, kill it and wipe its data, it can join a cluster with a single
        seed node.
        """
        cluster = self.cluster
        cluster.populate(1)
        cluster.start(wait_for_binary_proto=True)

        # Add a new node, bootstrap=True ensures that it is not a seed
        node2 = new_node(cluster, bootstrap=True)
        node2.start(wait_for_binary_proto=True, wait_other_notice=True)

        # Decommision the new node and kill it
        debug("Decommissioning & stopping node2")
        node2.decommission()
        node2.stop(wait_other_notice=False)

        # Wipe its data
        for data_dir in node2.data_directories():
            debug("Deleting {}".format(data_dir))
            shutil.rmtree(data_dir)

        commitlog_dir = os.path.join(node2.get_path(), 'commitlogs')
        debug("Deleting {}".format(commitlog_dir))
        shutil.rmtree(commitlog_dir)

        # Now start it, it should be allowed to join
        mark = node2.mark_log()
        debug("Restarting wiped node2")
        node2.start(wait_other_notice=False)
        node2.watch_log_for("JOINING:", from_mark=mark)

    def manual_bootstrap_test(self):
        """
            Test adding a new node and bootstrapping it manually. No auto_bootstrap.
            This test also verify that all data are OK after the addition of the new node.
            @jira_ticket CASSANDRA-9022
        """
        cluster = self.cluster
        cluster.populate(2).start(wait_other_notice=True)
        (node1, node2) = cluster.nodelist()

        node1.stress(['write', 'n=1K', '-schema', 'replication(factor=2)',
                      '-rate', 'threads=1', '-pop', 'dist=UNIFORM(1..1000)'])

        session = self.patient_exclusive_cql_connection(node2)
        stress_table = 'keyspace1.standard1'

        original_rows = list(session.execute("SELECT * FROM %s" % stress_table))

        # Add a new node
        node3 = new_node(cluster, bootstrap=False)
        node3.start(wait_for_binary_proto=True)
        node3.repair()
        node1.cleanup()

        current_rows = list(session.execute("SELECT * FROM %s" % stress_table))
        self.assertEquals(original_rows, current_rows)

    def local_quorum_bootstrap_test(self):
        """
        Test that CL local_quorum works while a node is bootstrapping.
        @jira_ticket CASSANDRA-8058
        """

        cluster = self.cluster
        cluster.populate([1, 1])
        cluster.start()

        node1 = cluster.nodes['node1']
        yaml_config = """
        # Create the keyspace and table
        keyspace: keyspace1
        keyspace_definition: |
          CREATE KEYSPACE keyspace1 WITH replication = {'class': 'NetworkTopologyStrategy', 'dc1': 1, 'dc2': 1};
        table: users
        table_definition:
          CREATE TABLE users (
            username text,
            first_name text,
            last_name text,
            email text,
            PRIMARY KEY(username)
          ) WITH compaction = {'class':'SizeTieredCompactionStrategy'};
        insert:
          partitions: fixed(1)
          batchtype: UNLOGGED
        queries:
          read:
            cql: select * from users where username = ?
            fields: samerow
        """
        stress_config = tempfile.NamedTemporaryFile(mode='w+', delete=False)
        stress_config.write(yaml_config)
        stress_config.close()
        node1.stress(['user', 'profile=' + stress_config.name, 'n=2000000',
                      'ops(insert=1)', '-rate', 'threads=50'])

        node3 = new_node(cluster, data_center='dc2')
        node3.start(no_wait=True)
        time.sleep(3)

        with tempfile.TemporaryFile(mode='w+') as tmpfile:
            node1.stress(['user', 'profile=' + stress_config.name, 'ops(insert=1)',
                          'n=500K', 'cl=LOCAL_QUORUM',
                          '-rate', 'threads=5',
                          '-errors', 'retries=2'],
                         stdout=tmpfile, stderr=subprocess.STDOUT)
            os.unlink(stress_config.name)

            tmpfile.seek(0)
            output = tmpfile.read()

        debug(output)
        regex = re.compile("Operation.+error inserting key.+Exception")
        failure = regex.search(output)
        self.assertIsNone(failure, "Error during stress while bootstrapping")

    def simultaneous_bootstrap_test(self):
        """
        Attempt to bootstrap two nodes at once, to assert the second bootstrapped node fails, and does not interfere.

        Start a one node cluster and run a stress write workload.
        Start up a second node, and wait for the first node to detect it has joined the cluster.
        While the second node is bootstrapping, start a third node. This should fail.

        @jira_ticket CASSANDRA-7069
        @jira_ticket CASSANDRA-9484
        """

        bootstrap_error = ("Other bootstrapping/leaving/moving nodes detected,"
                           " cannot bootstrap while cassandra.consistent.rangemovement is true")

        self.ignore_log_patterns.append(bootstrap_error)

        cluster = self.cluster
        cluster.populate(1)
        cluster.start(wait_for_binary_proto=True)

        node1, = cluster.nodelist()

        node1.stress(['write', 'n=500K', '-schema', 'replication(factor=1)',
                      '-rate', 'threads=10'])

        node2 = new_node(cluster)
        node2.start(wait_other_notice=True)

        node3 = new_node(cluster, remote_debug_port='2003')
        process = node3.start(wait_other_notice=False)
        stdout, stderr = process.communicate()
        self.assertIn(bootstrap_error, stderr, msg=stderr)
        time.sleep(.5)
        self.assertFalse(node3.is_running(), msg="Two nodes bootstrapped simultaneously")

        node2.watch_log_for("Starting listening for CQL clients")

        session = self.patient_exclusive_cql_connection(node2)

        # Repeat the select count(*) query, to help catch
        # bugs like 9484, where count(*) fails at higher
        # data loads.
        for _ in xrange(5):
            assert_one(session, "SELECT count(*) from keyspace1.standard1", [500000], cl=ConsistencyLevel.ONE)

 def _bootstrap_new_node(self):
     # Check we can bootstrap a new node on the upgraded cluster:
     debug("Adding a node to the cluster")
     nnode = new_node(self.cluster, remote_debug_port=str(2000 + len(self.cluster.nodes)))
     nnode.start(use_jna=True, wait_other_notice=True, wait_for_binary_proto=True)
     self._write_values()
     self._increment_counters()
     self._check_values()
     self._check_counters()

    def add_dc_after_mv_test(self):
        """Test that materialized views work as expected when adding a datacenter."""

        session = self.prepare()

        debug("Creating schema")
        session.execute("CREATE TABLE t (id int PRIMARY KEY, v int)")
        session.execute(("CREATE MATERIALIZED VIEW t_by_v AS SELECT * FROM t "
                         "WHERE v IS NOT NULL AND id IS NOT NULL PRIMARY KEY (v, id)"))

        debug("Writing 1k to base")
        for i in xrange(1000):
            session.execute("INSERT INTO t (id, v) VALUES ({v}, {v})".format(v=i))

        debug("Reading 1k from view")
        for i in xrange(1000):
            assert_one(session, "SELECT * FROM t_by_v WHERE v = {}".format(i), [i, i])

        debug("Reading 1k from base")
        for i in xrange(1000):
            assert_one(session, "SELECT * FROM t WHERE id = {}".format(i), [i, i])

        debug("Bootstrapping new node in another dc")
        node4 = new_node(self.cluster, data_center='dc2')
        node4.start(wait_other_notice=True, wait_for_binary_proto=True)

        debug("Bootstrapping new node in another dc")
        node5 = new_node(self.cluster, remote_debug_port='1414', data_center='dc2')
        node5.start()

        session2 = self.patient_exclusive_cql_connection(node4)

        debug("Verifying data from new node in view")
        for i in xrange(1000):
            assert_one(session2, "SELECT * FROM ks.t_by_v WHERE v = {}".format(i), [i, i])

        debug("Inserting 100 into base")
        for i in xrange(1000, 1100):
            session.execute("INSERT INTO t (id, v) VALUES ({v}, {v})".format(v=i))

        debug("Verify 100 in view")
        for i in xrange(1000, 1100):
            assert_one(session, "SELECT * FROM t_by_v WHERE v = {}".format(i), [i, i])

    def resumable_bootstrap_test(self):
        """
        Test resuming bootstrap after data streaming failure
        """

        cluster = self.cluster
        cluster.populate(2).start(wait_other_notice=True)

        node1 = cluster.nodes['node1']
        node1.stress(['write', 'n=100K', 'cl=TWO', '-schema', 'replication(factor=2)'])
        cluster.flush()

        # kill node1 in the middle of streaming to let it fail
        t = InterruptBootstrap(node1)
        t.start()

        # start bootstrapping node3 and wait for streaming
        node3 = new_node(cluster)
        node3.set_configuration_options(values={'stream_throughput_outbound_megabits_per_sec': 1})
        # keep timeout low so that test won't hang
        node3.set_configuration_options(values={'streaming_socket_timeout_in_ms': 1000})
        try:
            node3.start(wait_other_notice=False)
        except NodeError:
            pass  # node doesn't start as expected
        t.join()

        # wait for node3 ready to query
        node3.watch_log_for("Starting listening for CQL clients")
        mark = node3.mark_log()
        # check if node3 is still in bootstrap mode
        session = self.patient_exclusive_cql_connection(node3)
        rows = list(session.execute("SELECT bootstrapped FROM system.local WHERE key='local'"))
        assert len(rows) == 1
        assert rows[0][0] == 'IN_PROGRESS', rows[0][0]
        # bring back node1 and invoke nodetool bootstrap to resume bootstrapping
        node1.start(wait_other_notice=True)
        node3.nodetool('bootstrap resume')

        node3.watch_log_for("Resume complete", from_mark=mark)
        rows = list(session.execute("SELECT bootstrapped FROM system.local WHERE key='local'"))
        assert rows[0][0] == 'COMPLETED', rows[0][0]

        # cleanup to guarantee each node will only have sstables of its ranges
        cluster.cleanup()

        debug("Check data is present")
        # Let's check stream bootstrap completely transferred data
        stdout, stderr = node3.stress(['read', 'n=100k', "no-warmup", '-schema',
                                       'replication(factor=2)', '-rate', 'threads=8'],
                                      capture_output=True)

        if stdout and "FAILURE" in stdout:
            debug(stdout)
            assert False, "Cannot read inserted data after bootstrap"

    def simple_bootstrap_test(self):
        cluster = self.cluster
        tokens = cluster.balanced_tokens(2)
        cluster.set_configuration_options(values={'num_tokens': 1})

        debug("[node1, node2] tokens: %r" % (tokens,))

        keys = 10000

        # Create a single node cluster
        cluster.populate(1)
        node1 = cluster.nodelist()[0]
        node1.set_configuration_options(values={'initial_token': tokens[0]})
        cluster.start(wait_other_notice=True)

        session = self.patient_cql_connection(node1)
        self.create_ks(session, 'ks', 1)
        self.create_cf(session, 'cf', columns={'c1': 'text', 'c2': 'text'})

        # record the size before inserting any of our own data
        empty_size = node1.data_size()
        debug("node1 empty size : %s" % float(empty_size))

        insert_statement = session.prepare("INSERT INTO ks.cf (key, c1, c2) VALUES (?, 'value1', 'value2')")
        execute_concurrent_with_args(session, insert_statement, [['k%d' % k] for k in range(keys)])

        node1.flush()
        node1.compact()
        initial_size = node1.data_size()
        debug("node1 size before bootstrapping node2: %s" % float(initial_size))

        # Reads inserted data all during the bootstrap process. We shouldn't
        # get any error
        reader = self.go(lambda _: query_c1c2(session, random.randint(0, keys - 1), ConsistencyLevel.ONE))

        # Bootstrapping a new node
        node2 = new_node(cluster)
        node2.set_configuration_options(values={'initial_token': tokens[1]})
        node2.start(wait_for_binary_proto=True)
        node2.compact()

        reader.check()
        node1.cleanup()
        debug("node1 size after cleanup: %s" % float(node1.data_size()))
        node1.compact()
        debug("node1 size after compacting: %s" % float(node1.data_size()))
        time.sleep(.5)
        reader.check()

        debug("node2 size after compacting: %s" % float(node2.data_size()))

        size1 = float(node1.data_size())
        size2 = float(node2.data_size())
        assert_almost_equal(size1, size2, error=0.3)
        assert_almost_equal(float(initial_size - empty_size), 2 * (size1 - float(empty_size)))

    def _bootstrap_test_with_replica_down(self, consistent_range_movement, rf=2):
        """
        Test to check consistent bootstrap will not succeed when there are insufficient replicas
        @jira_ticket CASSANDRA-11848
        """
        cluster = self.cluster

        cluster.populate(2)
        node1, node2 = cluster.nodelist()

        node3_token = None
        # Make token assignment deterministic
        if DISABLE_VNODES:
            cluster.set_configuration_options(values={'num_tokens': 1})
            tokens = cluster.balanced_tokens(3)
            debug("non-vnode tokens: %r" % (tokens,))
            node1.set_configuration_options(values={'initial_token': tokens[0]})
            node2.set_configuration_options(values={'initial_token': tokens[2]})
            node3_token = tokens[1]  # Add node 3 between node1 and node2

        cluster.start()

        node1.stress(['write', 'n=10K', 'no-warmup', '-rate', 'threads=8', '-schema', 'replication(factor={})'.format(rf)])

        # change system_auth keyspace to 2 (default is 1) to avoid
        # "Unable to find sufficient sources for streaming" warning
        if cluster.cassandra_version() >= '2.2.0':
            session = self.patient_cql_connection(node1)
            session.execute("""
                ALTER KEYSPACE system_auth
                    WITH replication = {'class':'SimpleStrategy', 'replication_factor':2};
            """)

        # Stop node2, so node3 will not be able to perform consistent range movement
        node2.stop(wait_other_notice=True)

        successful_bootstrap_expected = not consistent_range_movement

        node3 = new_node(cluster, token=node3_token)
        node3.start(wait_for_binary_proto=successful_bootstrap_expected, wait_other_notice=successful_bootstrap_expected,
                    jvm_args=["-Dcassandra.consistent.rangemovement={}".format(consistent_range_movement)])

        if successful_bootstrap_expected:
            # with rf=1 and cassandra.consistent.rangemovement=false, missing sources are ignored
            if not consistent_range_movement and rf == 1:
                node3.watch_log_for("Unable to find sufficient sources for streaming range")
            self.assertTrue(node3.is_running())
            assert_bootstrap_state(self, node3, 'COMPLETED')
        else:
            if consistent_range_movement:
                node3.watch_log_for("A node required to move the data consistently is down")
            else:
                node3.watch_log_for("Unable to find sufficient sources for streaming range")
            assert_not_running(node3)