def use_cluster(cluster_name, nodes, ipformat=None, start=True): global CCM_CLUSTER if USE_CASS_EXTERNAL: if CCM_CLUSTER: log.debug("Using external CCM cluster {0}".format(CCM_CLUSTER.name)) else: log.debug("Using unnamed external cluster") return if is_current_cluster(cluster_name, nodes): log.debug("Using existing cluster, matching topology: {0}".format(cluster_name)) else: if CCM_CLUSTER: log.debug("Stopping existing cluster, topology mismatch: {0}".format(CCM_CLUSTER.name)) CCM_CLUSTER.stop() try: CCM_CLUSTER = CCMClusterFactory.load(path, cluster_name) log.debug("Found existing CCM cluster, {0}; clearing.".format(cluster_name)) CCM_CLUSTER.clear() CCM_CLUSTER.set_install_dir(**CCM_KWARGS) except Exception: ex_type, ex, tb = sys.exc_info() log.warn("{0}: {1} Backtrace: {2}".format(ex_type.__name__, ex, traceback.extract_tb(tb))) del tb log.debug("Creating new CCM cluster, {0}, with args {1}".format(cluster_name, CCM_KWARGS)) if DSE_VERSION: log.error("creating dse cluster") CCM_CLUSTER = DseCluster(path, cluster_name, **CCM_KWARGS) else: CCM_CLUSTER = CCMCluster(path, cluster_name, **CCM_KWARGS) CCM_CLUSTER.set_configuration_options({'start_native_transport': True}) if CASSANDRA_VERSION >= '2.2': CCM_CLUSTER.set_configuration_options({'enable_user_defined_functions': True}) if CASSANDRA_VERSION >= '3.0': CCM_CLUSTER.set_configuration_options({'enable_scripted_user_defined_functions': True}) common.switch_cluster(path, cluster_name) CCM_CLUSTER.populate(nodes, ipformat=ipformat) try: jvm_args = [] # This will enable the Mirroring query handler which will echo our custom payload k,v pairs back if PROTOCOL_VERSION >= 4: jvm_args = [" -Dcassandra.custom_query_handler_class=org.apache.cassandra.cql3.CustomPayloadMirroringQueryHandler"] if start: log.debug("Starting CCM cluster: {0}".format(cluster_name)) CCM_CLUSTER.start(wait_for_binary_proto=True, wait_other_notice=True, jvm_args=jvm_args) setup_keyspace(ipformat=ipformat) except Exception: log.exception("Failed to start CCM cluster; removing cluster.") if os.name == "nt": if CCM_CLUSTER: for node in CCM_CLUSTER.nodes.itervalues(): os.system("taskkill /F /PID " + str(node.pid)) else: call(["pkill", "-9", "-f", ".ccm"]) remove_cluster() raise
def run(self): try: if self.options.dse or (not self.options.version and common.isDse(self.options.install_dir)): cluster = DseCluster(self.path, self.name, install_dir=self.options.install_dir, version=self.options.version, dse_username=self.options.dse_username, dse_password=self.options.dse_password, dse_credentials_file=self.options.dse_credentials_file, opscenter=self.options.opscenter, verbose=True) else: cluster = Cluster(self.path, self.name, install_dir=self.options.install_dir, version=self.options.version, verbose=True) except OSError as e: import traceback print_('Cannot create cluster: %s\n%s' % (str(e), traceback.format_exc()), file=sys.stderr) exit(1) if self.options.partitioner: cluster.set_partitioner(self.options.partitioner) if cluster.cassandra_version() >= "1.2.5": self.options.binary_protocol = True if self.options.binary_protocol: cluster.set_configuration_options({'start_native_transport': True}) if cluster.cassandra_version() >= "1.2" and self.options.vnodes: cluster.set_configuration_options({'num_tokens': 256}) if not self.options.no_switch: common.switch_cluster(self.path, self.name) print_('Current cluster is now: %s' % self.name) if not (self.options.ipprefix or self.options.ipformat): self.options.ipformat = '127.0.0.%d' if self.options.ssl_path: cluster.enable_ssl(self.options.ssl_path, self.options.require_client_auth) if self.options.node_ssl_path: cluster.enable_internode_ssl(self.options.node_ssl_path) if self.options.datadirs: cluster.set_datadir_count(self.options.datadirs) if self.nodes is not None: try: if self.options.debug_log: cluster.set_log_level("DEBUG") if self.options.trace_log: cluster.set_log_level("TRACE") cluster.populate(self.nodes, self.options.debug, use_vnodes=self.options.vnodes, ipprefix=self.options.ipprefix, ipformat=self.options.ipformat, install_byteman=self.options.install_byteman) if self.options.start_nodes: profile_options = None if self.options.profile: profile_options = {} if self.options.profile_options: profile_options['options'] = self.options.profile_options if cluster.start(verbose=self.options.debug_log, wait_for_binary_proto=self.options.binary_protocol, jvm_args=self.options.jvm_args, profile_options=profile_options, allow_root=self.options.allow_root) is None: details = "" if not self.options.debug_log: details = " (you can use --debug-log for more information)" print_("Error starting nodes, see above for details%s" % details, file=sys.stderr) except common.ArgumentError as e: print_(str(e), file=sys.stderr) exit(1)
def run(self): try: if self.options.dse or (not self.options.version and common.isDse(self.options.install_dir)): cluster = DseCluster(self.path, self.name, install_dir=self.options.install_dir, version=self.options.version, dse_username=self.options.dse_username, dse_password=self.options.dse_password, opscenter=self.options.opscenter, verbose=True) else: cluster = Cluster(self.path, self.name, install_dir=self.options.install_dir, version=self.options.version, verbose=True) except OSError as e: cluster_dir = os.path.join(self.path, self.name) import traceback print_('Cannot create cluster: %s\n%s' % (str(e), traceback.format_exc()), file=sys.stderr) exit(1) if self.options.partitioner: cluster.set_partitioner(self.options.partitioner) if cluster.cassandra_version() >= "1.2.5": self.options.binary_protocol = True if self.options.binary_protocol: cluster.set_configuration_options({ 'start_native_transport' : True }) if cluster.cassandra_version() >= "1.2" and self.options.vnodes: cluster.set_configuration_options({ 'num_tokens' : 256 }) if not self.options.no_switch: common.switch_cluster(self.path, self.name) print_('Current cluster is now: %s' % self.name) if not (self.options.ipprefix or self.options.ipformat): self.options.ipformat = '127.0.0.%d' if self.options.ssl_path: cluster.enable_ssl(self.options.ssl_path, self.options.require_client_auth) if self.options.node_ssl_path: cluster.enable_internode_ssl(self.options.node_ssl_path) if self.nodes is not None: try: if self.options.debug_log: cluster.set_log_level("DEBUG") if self.options.trace_log: cluster.set_log_level("TRACE") cluster.populate(self.nodes, self.options.debug, use_vnodes=self.options.vnodes, ipprefix=self.options.ipprefix, ipformat=self.options.ipformat) if self.options.start_nodes: profile_options = None if self.options.profile: profile_options = {} if self.options.profile_options: profile_options['options'] = self.options.profile_options if cluster.start(verbose=self.options.debug_log, wait_for_binary_proto=self.options.binary_protocol, jvm_args=self.options.jvm_args, profile_options=profile_options) is None: details = "" if not self.options.debug_log: details = " (you can use --debug-log for more information)" print_("Error starting nodes, see above for details%s" % details, file=sys.stderr) except common.ArgumentError as e: print_(str(e), file=sys.stderr) exit(1)
def use_cluster(cluster_name, nodes, ipformat=None, start=True, workloads=None, set_keyspace=True, ccm_options=None, configuration_options={}, dse_options={}, use_single_interface=USE_SINGLE_INTERFACE): dse_cluster = True if DSE_VERSION else False if not workloads: workloads = [] if ccm_options is None and DSE_VERSION: ccm_options = {"version": CCM_VERSION} elif ccm_options is None: ccm_options = CCM_KWARGS.copy() cassandra_version = ccm_options.get('version', CCM_VERSION) dse_version = ccm_options.get('version', DSE_VERSION) global CCM_CLUSTER if USE_CASS_EXTERNAL: if CCM_CLUSTER: log.debug("Using external CCM cluster {0}".format(CCM_CLUSTER.name)) else: ccm_path = os.getenv("CCM_PATH", None) ccm_name = os.getenv("CCM_NAME", None) if ccm_path and ccm_name: CCM_CLUSTER = CCMClusterFactory.load(ccm_path, ccm_name) log.debug("Using external CCM cluster {0}".format(CCM_CLUSTER.name)) else: log.debug("Using unnamed external cluster") if set_keyspace and start: setup_keyspace(ipformat=ipformat, wait=False) return if is_current_cluster(cluster_name, nodes, workloads): log.debug("Using existing cluster, matching topology: {0}".format(cluster_name)) else: if CCM_CLUSTER: log.debug("Stopping existing cluster, topology mismatch: {0}".format(CCM_CLUSTER.name)) CCM_CLUSTER.stop() try: CCM_CLUSTER = CCMClusterFactory.load(path, cluster_name) log.debug("Found existing CCM cluster, {0}; clearing.".format(cluster_name)) CCM_CLUSTER.clear() CCM_CLUSTER.set_install_dir(**ccm_options) CCM_CLUSTER.set_configuration_options(configuration_options) CCM_CLUSTER.set_dse_configuration_options(dse_options) except Exception: ex_type, ex, tb = sys.exc_info() log.warning("{0}: {1} Backtrace: {2}".format(ex_type.__name__, ex, traceback.extract_tb(tb))) del tb ccm_options.update(cmd_line_args_to_dict('CCM_ARGS')) log.debug("Creating new CCM cluster, {0}, with args {1}".format(cluster_name, ccm_options)) # Make sure we cleanup old cluster dir if it exists cluster_path = os.path.join(path, cluster_name) if os.path.exists(cluster_path): shutil.rmtree(cluster_path) if dse_cluster: CCM_CLUSTER = DseCluster(path, cluster_name, **ccm_options) CCM_CLUSTER.set_configuration_options({'start_native_transport': True}) CCM_CLUSTER.set_configuration_options({'batch_size_warn_threshold_in_kb': 5}) if Version(dse_version) >= Version('5.0'): CCM_CLUSTER.set_configuration_options({'enable_user_defined_functions': True}) CCM_CLUSTER.set_configuration_options({'enable_scripted_user_defined_functions': True}) if Version(dse_version) >= Version('5.1'): # For Inet4Address CCM_CLUSTER.set_dse_configuration_options({ 'graph': { 'gremlin_server': { 'scriptEngines': { 'gremlin-groovy': { 'config': { 'sandbox_rules': { 'whitelist_packages': ['java.net'] } } } } } } }) if 'spark' in workloads: if Version(dse_version) >= Version('6.8'): config_options = { "resource_manager_options": { "worker_options": { "cores_total": 0.1, "memory_total": "64M" } } } else: config_options = {"initial_spark_worker_resources": 0.1} if Version(dse_version) >= Version('6.7'): log.debug("Disabling AlwaysON SQL for a DSE 6.7 Cluster") config_options['alwayson_sql_options'] = {'enabled': False} CCM_CLUSTER.set_dse_configuration_options(config_options) common.switch_cluster(path, cluster_name) CCM_CLUSTER.set_configuration_options(configuration_options) CCM_CLUSTER.populate(nodes, ipformat=ipformat) CCM_CLUSTER.set_dse_configuration_options(dse_options) else: CCM_CLUSTER = CCMCluster(path, cluster_name, **ccm_options) CCM_CLUSTER.set_configuration_options({'start_native_transport': True}) if Version(cassandra_version) >= Version('2.2'): CCM_CLUSTER.set_configuration_options({'enable_user_defined_functions': True}) if Version(cassandra_version) >= Version('3.0'): CCM_CLUSTER.set_configuration_options({'enable_scripted_user_defined_functions': True}) if Version(cassandra_version) >= Version('4.0-a'): CCM_CLUSTER.set_configuration_options({ 'enable_materialized_views': True, 'enable_sasi_indexes': True, 'enable_transient_replication': True, }) common.switch_cluster(path, cluster_name) CCM_CLUSTER.set_configuration_options(configuration_options) CCM_CLUSTER.populate(nodes, ipformat=ipformat, use_single_interface=use_single_interface) try: jvm_args = [] # This will enable the Mirroring query handler which will echo our custom payload k,v pairs back if 'graph' in workloads: jvm_args += ['-Xms1500M', '-Xmx1500M'] else: if PROTOCOL_VERSION >= 4: jvm_args = [" -Dcassandra.custom_query_handler_class=org.apache.cassandra.cql3.CustomPayloadMirroringQueryHandler"] if len(workloads) > 0: for node in CCM_CLUSTER.nodes.values(): node.set_workloads(workloads) if start: log.debug("Starting CCM cluster: {0}".format(cluster_name)) CCM_CLUSTER.start(jvm_args=jvm_args, wait_for_binary_proto=True) # Added to wait for slow nodes to start up log.debug("Cluster started waiting for binary ports") for node in CCM_CLUSTER.nodes.values(): wait_for_node_socket(node, 300) log.debug("Binary ports are open") if set_keyspace: setup_keyspace(ipformat=ipformat) except Exception: log.exception("Failed to start CCM cluster; removing cluster.") if os.name == "nt": if CCM_CLUSTER: for node in six.itervalues(CCM_CLUSTER.nodes): os.system("taskkill /F /PID " + str(node.pid)) else: call(["pkill", "-9", "-f", ".ccm"]) remove_cluster() raise return CCM_CLUSTER
def use_cluster(cluster_name, nodes, ipformat=None, start=True, workloads=[]): set_default_cass_ip() global CCM_CLUSTER if USE_CASS_EXTERNAL: if CCM_CLUSTER: log.debug("Using external CCM cluster {0}".format( CCM_CLUSTER.name)) else: log.debug("Using unnamed external cluster") setup_keyspace(ipformat=ipformat, wait=False) return if is_current_cluster(cluster_name, nodes): log.debug("Using existing cluster, matching topology: {0}".format( cluster_name)) else: if CCM_CLUSTER: log.debug( "Stopping existing cluster, topology mismatch: {0}".format( CCM_CLUSTER.name)) CCM_CLUSTER.stop() try: CCM_CLUSTER = CCMClusterFactory.load(path, cluster_name) log.debug("Found existing CCM cluster, {0}; clearing.".format( cluster_name)) CCM_CLUSTER.clear() CCM_CLUSTER.set_install_dir(**CCM_KWARGS) except Exception: ex_type, ex, tb = sys.exc_info() log.warn("{0}: {1} Backtrace: {2}".format( ex_type.__name__, ex, traceback.extract_tb(tb))) del tb log.debug("Creating new CCM cluster, {0}, with args {1}".format( cluster_name, CCM_KWARGS)) if DSE_VERSION: log.error("creating dse cluster") CCM_CLUSTER = DseCluster(path, cluster_name, **CCM_KWARGS) else: CCM_CLUSTER = CCMCluster(path, cluster_name, **CCM_KWARGS) CCM_CLUSTER.set_configuration_options( {'start_native_transport': True}) if CASSANDRA_VERSION >= '2.2': CCM_CLUSTER.set_configuration_options( {'enable_user_defined_functions': True}) if CASSANDRA_VERSION >= '3.0': CCM_CLUSTER.set_configuration_options( {'enable_scripted_user_defined_functions': True}) if 'spark' in workloads: config_options = {"initial_spark_worker_resources": 0.1} CCM_CLUSTER.set_dse_configuration_options(config_options) common.switch_cluster(path, cluster_name) CCM_CLUSTER.populate(nodes, ipformat=ipformat) try: jvm_args = [] # This will enable the Mirroring query handler which will echo our custom payload k,v pairs back if 'graph' not in workloads: if PROTOCOL_VERSION >= 4: jvm_args = [ " -Dcassandra.custom_query_handler_class=org.apache.cassandra.cql3.CustomPayloadMirroringQueryHandler" ] if (len(workloads) > 0): for node in CCM_CLUSTER.nodes.values(): node.set_workloads(workloads) if start: log.debug("Starting CCM cluster: {0}".format(cluster_name)) CCM_CLUSTER.start(wait_for_binary_proto=True, wait_other_notice=True, jvm_args=jvm_args) # Added to wait for slow nodes to start up for node in CCM_CLUSTER.nodes.values(): wait_for_node_socket(node, 120) setup_keyspace(ipformat=ipformat) except Exception: log.exception("Failed to start CCM cluster; removing cluster.") if os.name == "nt": if CCM_CLUSTER: for node in CCM_CLUSTER.nodes.itervalues(): os.system("taskkill /F /PID " + str(node.pid)) else: call(["pkill", "-9", "-f", ".ccm"]) remove_cluster() raise
def use_cluster(cluster_name, nodes, ipformat=None, start=True, workloads=[], set_keyspace=True, ccm_options=None, configuration_options={}, dse_cluster=False, dse_options={}, dse_version=None): if (dse_version and not dse_cluster): raise ValueError( 'specified dse_version {} but not dse_cluster'.format(dse_version)) set_default_cass_ip() if ccm_options is None and dse_cluster: ccm_options = {"version": dse_version or DSE_VERSION} elif ccm_options is None: ccm_options = CCM_KWARGS.copy() cassandra_version = ccm_options.get('version', CCM_VERSION) dse_version = ccm_options.get('version', DSE_VERSION) if 'version' in ccm_options: ccm_options['version'] = ccm_options['version'].base_version global CCM_CLUSTER if USE_CASS_EXTERNAL: if CCM_CLUSTER: log.debug("Using external CCM cluster {0}".format( CCM_CLUSTER.name)) else: log.debug("Using unnamed external cluster") if set_keyspace and start: setup_keyspace(ipformat=ipformat, wait=False) return if is_current_cluster(cluster_name, nodes): log.debug("Using existing cluster, matching topology: {0}".format( cluster_name)) else: if CCM_CLUSTER: log.debug( "Stopping existing cluster, topology mismatch: {0}".format( CCM_CLUSTER.name)) CCM_CLUSTER.stop() try: CCM_CLUSTER = CCMClusterFactory.load(path, cluster_name) log.debug("Found existing CCM cluster, {0}; clearing.".format( cluster_name)) CCM_CLUSTER.clear() CCM_CLUSTER.set_install_dir(**ccm_options) CCM_CLUSTER.set_configuration_options(configuration_options) except Exception: ex_type, ex, tb = sys.exc_info() log.warning("{0}: {1} Backtrace: {2}".format( ex_type.__name__, ex, traceback.extract_tb(tb))) del tb ccm_options.update(cmd_line_args_to_dict('CCM_ARGS')) log.debug("Creating new CCM cluster, {0}, with args {1}".format( cluster_name, ccm_options)) if dse_cluster: CCM_CLUSTER = DseCluster(path, cluster_name, **ccm_options) CCM_CLUSTER.set_configuration_options( {'start_native_transport': True}) CCM_CLUSTER.set_configuration_options( {'batch_size_warn_threshold_in_kb': 5}) if dse_version >= Version('5.0'): CCM_CLUSTER.set_configuration_options( {'enable_user_defined_functions': True}) CCM_CLUSTER.set_configuration_options( {'enable_scripted_user_defined_functions': True}) if 'spark' in workloads: config_options = {"initial_spark_worker_resources": 0.1} CCM_CLUSTER.set_dse_configuration_options(config_options) common.switch_cluster(path, cluster_name) CCM_CLUSTER.set_configuration_options(configuration_options) CCM_CLUSTER.populate(nodes, ipformat=ipformat) CCM_CLUSTER.set_dse_configuration_options(dse_options) else: CCM_CLUSTER = CCMCluster(path, cluster_name, **ccm_options) CCM_CLUSTER.set_configuration_options( {'start_native_transport': True}) if cassandra_version >= Version('2.2'): CCM_CLUSTER.set_configuration_options( {'enable_user_defined_functions': True}) if cassandra_version >= Version('3.0'): CCM_CLUSTER.set_configuration_options( {'enable_scripted_user_defined_functions': True}) common.switch_cluster(path, cluster_name) CCM_CLUSTER.set_configuration_options(configuration_options) CCM_CLUSTER.populate(nodes, ipformat=ipformat) try: jvm_args = [] # This will enable the Mirroring query handler which will echo our custom payload k,v pairs back if 'graph' not in workloads: if PROTOCOL_VERSION >= 4: jvm_args = [ " -Dcassandra.custom_query_handler_class=org.apache.cassandra.cql3.CustomPayloadMirroringQueryHandler" ] if (len(workloads) > 0): for node in CCM_CLUSTER.nodes.values(): node.set_workloads(workloads) if start: log.debug("Starting CCM cluster: {0}".format(cluster_name)) CCM_CLUSTER.start(wait_for_binary_proto=True, wait_other_notice=True, jvm_args=jvm_args) # Added to wait for slow nodes to start up for node in CCM_CLUSTER.nodes.values(): wait_for_node_socket(node, 120) if set_keyspace: setup_keyspace(ipformat=ipformat) except Exception: log.exception("Failed to start CCM cluster; removing cluster.") if os.name == "nt": if CCM_CLUSTER: for node in six.itervalues(CCM_CLUSTER.nodes): os.system("taskkill /F /PID " + str(node.pid)) else: call(["pkill", "-9", "-f", ".ccm"]) remove_cluster() raise return CCM_CLUSTER
def use_cluster(cluster_name, nodes, ipformat=None, start=True, workloads=[], set_keyspace=True, ccm_options=None, configuration_options={}, dse_cluster=False, dse_options={}, dse_version=None): if (dse_version and not dse_cluster): raise ValueError('specified dse_version {} but not dse_cluster'.format(dse_version)) set_default_cass_ip() if ccm_options is None and dse_cluster: ccm_options = {"version": dse_version or DSE_VERSION} elif ccm_options is None: ccm_options = CCM_KWARGS.copy() cassandra_version = ccm_options.get('version', CCM_VERSION) dse_version = ccm_options.get('version', DSE_VERSION) if 'version' in ccm_options: ccm_options['version'] = ccm_options['version'].base_version global CCM_CLUSTER if USE_CASS_EXTERNAL: if CCM_CLUSTER: log.debug("Using external CCM cluster {0}".format(CCM_CLUSTER.name)) else: log.debug("Using unnamed external cluster") if set_keyspace and start: setup_keyspace(ipformat=ipformat, wait=False) return if is_current_cluster(cluster_name, nodes): log.debug("Using existing cluster, matching topology: {0}".format(cluster_name)) else: if CCM_CLUSTER: log.debug("Stopping existing cluster, topology mismatch: {0}".format(CCM_CLUSTER.name)) CCM_CLUSTER.stop() try: CCM_CLUSTER = CCMClusterFactory.load(path, cluster_name) log.debug("Found existing CCM cluster, {0}; clearing.".format(cluster_name)) CCM_CLUSTER.clear() CCM_CLUSTER.set_install_dir(**ccm_options) CCM_CLUSTER.set_configuration_options(configuration_options) except Exception: ex_type, ex, tb = sys.exc_info() log.warning("{0}: {1} Backtrace: {2}".format(ex_type.__name__, ex, traceback.extract_tb(tb))) del tb ccm_options.update(cmd_line_args_to_dict('CCM_ARGS')) log.debug("Creating new CCM cluster, {0}, with args {1}".format(cluster_name, ccm_options)) # Make sure we cleanup old cluster dir if it exists cluster_path = os.path.join(path, cluster_name) if os.path.exists(cluster_path): shutil.rmtree(cluster_path) if dse_cluster: CCM_CLUSTER = DseCluster(path, cluster_name, **ccm_options) CCM_CLUSTER.set_configuration_options({'start_native_transport': True}) CCM_CLUSTER.set_configuration_options({'batch_size_warn_threshold_in_kb': 5}) if dse_version >= Version('5.0'): CCM_CLUSTER.set_configuration_options({'enable_user_defined_functions': True}) CCM_CLUSTER.set_configuration_options({'enable_scripted_user_defined_functions': True}) if 'spark' in workloads: config_options = {"initial_spark_worker_resources": 0.1} CCM_CLUSTER.set_dse_configuration_options(config_options) common.switch_cluster(path, cluster_name) CCM_CLUSTER.set_configuration_options(configuration_options) CCM_CLUSTER.populate(nodes, ipformat=ipformat) CCM_CLUSTER.set_dse_configuration_options(dse_options) else: CCM_CLUSTER = CCMCluster(path, cluster_name, **ccm_options) CCM_CLUSTER.set_configuration_options({'start_native_transport': True}) if cassandra_version >= Version('2.2'): CCM_CLUSTER.set_configuration_options({'enable_user_defined_functions': True}) if cassandra_version >= Version('3.0'): CCM_CLUSTER.set_configuration_options({'enable_scripted_user_defined_functions': True}) common.switch_cluster(path, cluster_name) CCM_CLUSTER.set_configuration_options(configuration_options) CCM_CLUSTER.populate(nodes, ipformat=ipformat) try: jvm_args = [] # This will enable the Mirroring query handler which will echo our custom payload k,v pairs back if 'graph' not in workloads: if PROTOCOL_VERSION >= 4: jvm_args = [" -Dcassandra.custom_query_handler_class=org.apache.cassandra.cql3.CustomPayloadMirroringQueryHandler"] if(len(workloads) > 0): for node in CCM_CLUSTER.nodes.values(): node.set_workloads(workloads) if start: log.debug("Starting CCM cluster: {0}".format(cluster_name)) CCM_CLUSTER.start(wait_for_binary_proto=True, wait_other_notice=True, jvm_args=jvm_args) # Added to wait for slow nodes to start up for node in CCM_CLUSTER.nodes.values(): wait_for_node_socket(node, 120) if set_keyspace: setup_keyspace(ipformat=ipformat) except Exception: log.exception("Failed to start CCM cluster; removing cluster.") if os.name == "nt": if CCM_CLUSTER: for node in six.itervalues(CCM_CLUSTER.nodes): os.system("taskkill /F /PID " + str(node.pid)) else: call(["pkill", "-9", "-f", ".ccm"]) remove_cluster() raise return CCM_CLUSTER