def reload_config(self, errors_fatal=False): sync_continuously = False if hasattr(self, "config"): sync_continuously = self.config.get( "file_mounts_sync_continuously", False) try: with open(self.config_path) as f: new_config = yaml.safe_load(f.read()) validate_config(new_config) new_launch_hash = hash_launch_conf(new_config["worker_nodes"], new_config["auth"]) (new_runtime_hash, new_file_mounts_contents_hash) = hash_runtime_conf( new_config["file_mounts"], new_config["cluster_synced_files"], [ new_config["worker_setup_commands"], new_config["worker_start_ray_commands"], ], generate_file_mounts_contents_hash=sync_continuously, ) self.config = new_config self.launch_hash = new_launch_hash self.runtime_hash = new_runtime_hash self.file_mounts_contents_hash = new_file_mounts_contents_hash except Exception as e: if errors_fatal: raise e else: logger.exception("StandardAutoscaler: " "Error parsing config.")
def _launch_node(self, config: Dict[str, Any], count: int, node_type: Optional[str]): if self.node_types: assert node_type, node_type worker_filter = {TAG_RAY_NODE_KIND: NODE_KIND_WORKER} before = self.provider.non_terminated_nodes(tag_filters=worker_filter) launch_hash = hash_launch_conf(config["worker_nodes"], config["auth"]) self.log("Launching {} nodes, type {}.".format(count, node_type)) node_config = copy.deepcopy(config["worker_nodes"]) node_tags = { TAG_RAY_NODE_NAME: "ray-{}-worker".format(config["cluster_name"]), TAG_RAY_NODE_KIND: NODE_KIND_WORKER, TAG_RAY_NODE_STATUS: STATUS_UNINITIALIZED, TAG_RAY_LAUNCH_CONFIG: launch_hash, } # A custom node type is specified; set the tag in this case, and also # merge the configs. We merge the configs instead of overriding, so # that the bootstrapped per-cloud properties are preserved. # TODO(ekl) this logic is duplicated in commands.py (keep in sync) if node_type: node_tags[TAG_RAY_USER_NODE_TYPE] = node_type node_config.update( config["available_node_types"][node_type]["node_config"]) self.provider.create_node(node_config, node_tags, count) after = self.provider.non_terminated_nodes(tag_filters=worker_filter) if set(after).issubset(before): self.log("No new nodes reported after node creation.")
def launch_config_ok(self, node_id): node_tags = self.provider.node_tags(node_id) tag_launch_conf = node_tags.get(TAG_RAY_LAUNCH_CONFIG) node_type = node_tags.get(TAG_RAY_USER_NODE_TYPE) launch_config = copy.deepcopy(self.config["worker_nodes"]) if node_type: launch_config.update( self.config["available_node_types"][node_type]["node_config"]) calculated_launch_hash = hash_launch_conf(launch_config, self.config["auth"]) if calculated_launch_hash != tag_launch_conf: return False return True
def reload_config(self, errors_fatal=False): try: with open(self.config_path) as f: new_config = yaml.safe_load(f.read()) validate_config(new_config) new_launch_hash = hash_launch_conf(new_config["worker_nodes"], new_config["auth"]) new_runtime_hash = hash_runtime_conf(new_config["file_mounts"], [ new_config["worker_setup_commands"], new_config["worker_start_ray_commands"] ]) self.config = new_config self.launch_hash = new_launch_hash self.runtime_hash = new_runtime_hash except Exception as e: if errors_fatal: raise e else: logger.exception("StandardAutoscaler: " "Error parsing config.")
def _launch_node(self, config, count, instance_type): worker_filter = {TAG_RAY_NODE_TYPE: NODE_TYPE_WORKER} before = self.provider.non_terminated_nodes(tag_filters=worker_filter) launch_hash = hash_launch_conf(config["worker_nodes"], config["auth"]) self.log("Launching {} nodes, type {}.".format(count, instance_type)) node_config = config["worker_nodes"] node_tags = { TAG_RAY_NODE_NAME: "ray-{}-worker".format(config["cluster_name"]), TAG_RAY_NODE_TYPE: NODE_TYPE_WORKER, TAG_RAY_NODE_STATUS: STATUS_UNINITIALIZED, TAG_RAY_LAUNCH_CONFIG: launch_hash, } if instance_type: node_tags[TAG_RAY_INSTANCE_TYPE] = instance_type self.provider.create_node_of_type(node_config, node_tags, instance_type, count) else: self.provider.create_node(node_config, node_tags, count) after = self.provider.non_terminated_nodes(tag_filters=worker_filter) if set(after).issubset(before): self.log("No new nodes reported after node creation.")
def get_or_create_head_node(config, config_file, no_restart, restart_only, yes, override_cluster_name): """Create the cluster head node, which in turn creates the workers.""" provider = get_node_provider(config["provider"], config["cluster_name"]) config_file = os.path.abspath(config_file) try: head_node_tags = { TAG_RAY_NODE_TYPE: NODE_TYPE_HEAD, } nodes = provider.non_terminated_nodes(head_node_tags) if len(nodes) > 0: head_node = nodes[0] else: head_node = None if not head_node: confirm("This will create a new cluster", yes) elif not no_restart: confirm("This will restart cluster services", yes) launch_hash = hash_launch_conf(config["head_node"], config["auth"]) if head_node is None or provider.node_tags(head_node).get( TAG_RAY_LAUNCH_CONFIG) != launch_hash: if head_node is not None: confirm("Head node config out-of-date. It will be terminated", yes) logger.info( "get_or_create_head_node: " "Shutting down outdated head node {}".format(head_node)) provider.terminate_node(head_node) logger.info("get_or_create_head_node: Launching new head node...") head_node_tags[TAG_RAY_LAUNCH_CONFIG] = launch_hash head_node_tags[TAG_RAY_NODE_NAME] = "ray-{}-head".format( config["cluster_name"]) provider.create_node(config["head_node"], head_node_tags, 1) start = time.time() head_node = None while True: if time.time() - start > 5: raise RuntimeError("Failed to create head node.") nodes = provider.non_terminated_nodes(head_node_tags) if len(nodes) == 1: head_node = nodes[0] break time.sleep(1) # TODO(ekl) right now we always update the head node even if the hash # matches. We could prompt the user for what they want to do here. runtime_hash = hash_runtime_conf(config["file_mounts"], config) logger.info("get_or_create_head_node: Updating files on head node...") # Rewrite the auth config so that the head node can update the workers remote_config = copy.deepcopy(config) if config["provider"]["type"] != "kubernetes": remote_key_path = "~/ray_bootstrap_key.pem" remote_config["auth"]["ssh_private_key"] = remote_key_path # Adjust for new file locations new_mounts = {} for remote_path in config["file_mounts"]: new_mounts[remote_path] = remote_path remote_config["file_mounts"] = new_mounts remote_config["no_restart"] = no_restart # Now inject the rewritten config and SSH key into the head node remote_config_file = tempfile.NamedTemporaryFile( "w", prefix="ray-bootstrap-") remote_config_file.write(json.dumps(remote_config)) remote_config_file.flush() config["file_mounts"].update({ "~/ray_bootstrap_config.yaml": remote_config_file.name }) if config["provider"]["type"] != "kubernetes": config["file_mounts"].update({ remote_key_path: config["auth"]["ssh_private_key"], }) if restart_only: init_commands = [] ray_start_commands = config["head_start_ray_commands"] elif no_restart: init_commands = config["head_setup_commands"] ray_start_commands = [] else: init_commands = config["head_setup_commands"] ray_start_commands = config["head_start_ray_commands"] if not no_restart: warn_about_bad_start_command(ray_start_commands) updater = NodeUpdaterThread( node_id=head_node, provider_config=config["provider"], provider=provider, auth_config=config["auth"], cluster_name=config["cluster_name"], file_mounts=config["file_mounts"], initialization_commands=config["initialization_commands"], setup_commands=init_commands, ray_start_commands=ray_start_commands, runtime_hash=runtime_hash, ) updater.start() updater.join() # Refresh the node cache so we see the external ip if available provider.non_terminated_nodes(head_node_tags) if config.get("provider", {}).get("use_internal_ips", False) is True: head_node_ip = provider.internal_ip(head_node) else: head_node_ip = provider.external_ip(head_node) if updater.exitcode != 0: logger.error("get_or_create_head_node: " "Updating {} failed".format(head_node_ip)) sys.exit(1) logger.info( "get_or_create_head_node: " "Head node up-to-date, IP address is: {}".format(head_node_ip)) monitor_str = "tail -n 100 -f /tmp/ray/session_*/logs/monitor*" use_docker = "docker" in config and bool( config["docker"]["container_name"]) if override_cluster_name: modifiers = " --cluster-name={}".format( quote(override_cluster_name)) else: modifiers = "" print("To monitor auto-scaling activity, you can run:\n\n" " ray exec {} {}{}{}\n".format( config_file, "--docker " if use_docker else "", quote(monitor_str), modifiers)) print("To open a console on the cluster:\n\n" " ray attach {}{}\n".format(config_file, modifiers)) print("To get a remote shell to the cluster manually, run:\n\n" " {}\n".format(updater.cmd_runner.remote_shell_command_str())) finally: provider.cleanup()
def get_or_create_head_node(config, config_file, no_restart, restart_only, yes, override_cluster_name, _provider=None, _runner=subprocess): """Create the cluster head node, which in turn creates the workers.""" provider = (_provider or get_node_provider(config["provider"], config["cluster_name"])) config = copy.deepcopy(config) raw_config_file = config_file # used for printing to the user config_file = os.path.abspath(config_file) try: head_node_tags = { TAG_RAY_NODE_KIND: NODE_KIND_HEAD, } nodes = provider.non_terminated_nodes(head_node_tags) if len(nodes) > 0: head_node = nodes[0] else: head_node = None if not head_node: cli_logger.confirm(yes, "No head node found. " "Launching a new cluster.", _abort=True) cli_logger.old_confirm("This will create a new cluster", yes) elif not no_restart: cli_logger.old_confirm("This will restart cluster services", yes) if head_node: if restart_only: cli_logger.confirm( yes, "Updating cluster configuration and " "restarting the cluster Ray runtime. " "Setup commands will not be run due to `{}`.\n", cf.bold("--restart-only"), _abort=True) elif no_restart: cli_logger.print( "Cluster Ray runtime will not be restarted due " "to `{}`.", cf.bold("--no-restart")) cli_logger.confirm(yes, "Updating cluster configuration and " "running setup commands.", _abort=True) else: cli_logger.print( "Updating cluster configuration and running full setup.") cli_logger.confirm( yes, cf.bold("Cluster Ray runtime will be restarted."), _abort=True) cli_logger.newline() # TODO(ekl) this logic is duplicated in node_launcher.py (keep in sync) head_node_config = copy.deepcopy(config["head_node"]) if "head_node_type" in config: head_node_tags[TAG_RAY_USER_NODE_TYPE] = config["head_node_type"] head_node_config.update(config["available_node_types"][ config["head_node_type"]]["node_config"]) launch_hash = hash_launch_conf(head_node_config, config["auth"]) if head_node is None or provider.node_tags(head_node).get( TAG_RAY_LAUNCH_CONFIG) != launch_hash: with cli_logger.group("Acquiring an up-to-date head node"): if head_node is not None: cli_logger.print( "Currently running head node is out-of-date with " "cluster configuration") cli_logger.print( "hash is {}, expected {}", cf.bold( provider.node_tags(head_node).get( TAG_RAY_LAUNCH_CONFIG)), cf.bold(launch_hash)) cli_logger.confirm(yes, "Relaunching it.", _abort=True) cli_logger.old_confirm( "Head node config out-of-date. It will be terminated", yes) cli_logger.old_info( logger, "get_or_create_head_node: " "Shutting down outdated head node {}", head_node) provider.terminate_node(head_node) cli_logger.print("Terminated head node {}", head_node) cli_logger.old_info( logger, "get_or_create_head_node: Launching new head node...") head_node_tags[TAG_RAY_LAUNCH_CONFIG] = launch_hash head_node_tags[TAG_RAY_NODE_NAME] = "ray-{}-head".format( config["cluster_name"]) provider.create_node(head_node_config, head_node_tags, 1) cli_logger.print("Launched a new head node") start = time.time() head_node = None with cli_logger.timed("Fetching the new head node"): while True: if time.time() - start > 50: cli_logger.abort( "Head node fetch timed out.") # todo: msg raise RuntimeError("Failed to create head node.") nodes = provider.non_terminated_nodes(head_node_tags) if len(nodes) == 1: head_node = nodes[0] break time.sleep(1) cli_logger.newline() with cli_logger.group( "Setting up head node", _numbered=("<>", 1, 1), # cf.bold(provider.node_tags(head_node)[TAG_RAY_NODE_NAME]), _tags=dict()): # add id, ARN to tags? # TODO(ekl) right now we always update the head node even if the # hash matches. # We could prompt the user for what they want to do here. # No need to pass in cluster_sync_files because we use this # hash to set up the head node (runtime_hash, file_mounts_contents_hash) = hash_runtime_conf( config["file_mounts"], None, config) cli_logger.old_info( logger, "get_or_create_head_node: Updating files on head node...") # Rewrite the auth config so that the head # node can update the workers remote_config = copy.deepcopy(config) # drop proxy options if they exist, otherwise # head node won't be able to connect to workers remote_config["auth"].pop("ssh_proxy_command", None) if "ssh_private_key" in config["auth"]: remote_key_path = "~/ray_bootstrap_key.pem" remote_config["auth"]["ssh_private_key"] = remote_key_path # Adjust for new file locations new_mounts = {} for remote_path in config["file_mounts"]: new_mounts[remote_path] = remote_path remote_config["file_mounts"] = new_mounts remote_config["no_restart"] = no_restart # Now inject the rewritten config and SSH key into the head node remote_config_file = tempfile.NamedTemporaryFile( "w", prefix="ray-bootstrap-") remote_config_file.write(json.dumps(remote_config)) remote_config_file.flush() config["file_mounts"].update( {"~/ray_bootstrap_config.yaml": remote_config_file.name}) if "ssh_private_key" in config["auth"]: config["file_mounts"].update({ remote_key_path: config["auth"]["ssh_private_key"], }) cli_logger.print("Prepared bootstrap config") if restart_only: setup_commands = [] ray_start_commands = config["head_start_ray_commands"] elif no_restart: setup_commands = config["head_setup_commands"] ray_start_commands = [] else: setup_commands = config["head_setup_commands"] ray_start_commands = config["head_start_ray_commands"] if not no_restart: warn_about_bad_start_command(ray_start_commands) updater = NodeUpdaterThread( node_id=head_node, provider_config=config["provider"], provider=provider, auth_config=config["auth"], cluster_name=config["cluster_name"], file_mounts=config["file_mounts"], initialization_commands=config["initialization_commands"], setup_commands=setup_commands, ray_start_commands=ray_start_commands, process_runner=_runner, runtime_hash=runtime_hash, file_mounts_contents_hash=file_mounts_contents_hash, is_head_node=True, docker_config=config.get("docker")) updater.start() updater.join() # Refresh the node cache so we see the external ip if available provider.non_terminated_nodes(head_node_tags) if config.get("provider", {}).get("use_internal_ips", False) is True: head_node_ip = provider.internal_ip(head_node) else: head_node_ip = provider.external_ip(head_node) if updater.exitcode != 0: # todo: this does not follow the mockup and is not good enough cli_logger.abort("Failed to setup head node.") cli_logger.old_error( logger, "get_or_create_head_node: " "Updating {} failed", head_node_ip) sys.exit(1) cli_logger.old_info( logger, "get_or_create_head_node: " "Head node up-to-date, IP address is: {}", head_node_ip) monitor_str = "tail -n 100 -f /tmp/ray/session_*/logs/monitor*" if override_cluster_name: modifiers = " --cluster-name={}".format( quote(override_cluster_name)) else: modifiers = "" if cli_logger.old_style: print("To monitor autoscaling activity, you can run:\n\n" " ray exec {} {}{}\n".format(config_file, quote(monitor_str), modifiers)) print("To open a console on the cluster:\n\n" " ray attach {}{}\n".format(config_file, modifiers)) print("To get a remote shell to the cluster manually, run:\n\n" " {}\n".format( updater.cmd_runner.remote_shell_command_str())) cli_logger.newline() with cli_logger.group("Useful commands"): cli_logger.print("Monitor autoscaling with") cli_logger.print(cf.bold(" ray exec {}{} {}"), raw_config_file, modifiers, quote(monitor_str)) cli_logger.print("Connect to a terminal on the cluster head") cli_logger.print(cf.bold(" ray attach {}{}"), raw_config_file, modifiers) finally: provider.cleanup()