def _start_node(self, node_configuration, node_count_on_host):
host_name = node_configuration.ip
node_name = node_configuration.node_name
binary_path = node_configuration.binary_path
data_paths = node_configuration.data_paths
node_telemetry_dir = os.path.join(node_configuration.node_root_path, "telemetry")
java_major_version, java_home = java_resolver.java_home(node_configuration.car_runtime_jdks, self.cfg)
self.logger.info("Starting node [%s].", node_name)
enabled_devices = self.cfg.opts("telemetry", "devices")
telemetry_params = self.cfg.opts("telemetry", "params")
node_telemetry = [
telemetry.FlightRecorder(telemetry_params, node_telemetry_dir, java_major_version),
telemetry.JitCompiler(node_telemetry_dir),
telemetry.Gc(node_telemetry_dir, java_major_version),
telemetry.Heapdump(node_telemetry_dir),
telemetry.DiskIo(node_count_on_host),
telemetry.IndexSize(data_paths),
telemetry.StartupTime(),
]
t = telemetry.Telemetry(enabled_devices, devices=node_telemetry)
# TODO #822: Remove reference to car's environment
env = self._prepare_env(node_configuration.car_env, node_name, java_home, t)
t.on_pre_node_start(node_name)
node_pid = self._start_process(binary_path, env)
self.logger.info("Successfully started node [%s] with PID [%s].", node_name, node_pid)
node = cluster.Node(node_pid, binary_path, host_name, node_name, t)
self.logger.info("Attaching telemetry devices to node [%s].", node_name)
t.attach_to_node(node)
return node
def _start_node(self, node_configuration, node_count_on_host):
host_name = node_configuration.ip
node_name = node_configuration.node_name
car = node_configuration.car
binary_path = node_configuration.binary_path
data_paths = node_configuration.data_paths
node_telemetry_dir = os.path.join(node_configuration.node_root_path,
"telemetry")
java_major_version, java_home = java_resolver.java_home(car, self.cfg)
telemetry.add_metadata_for_node(self.metrics_store, node_name,
host_name)
self.logger.info("Starting node [%s] based on car [%s].", node_name,
car)
enabled_devices = self.cfg.opts("telemetry", "devices")
telemetry_params = self.cfg.opts("telemetry", "params")
node_telemetry = [
telemetry.FlightRecorder(telemetry_params, node_telemetry_dir,
java_major_version),
telemetry.JitCompiler(node_telemetry_dir),
telemetry.Gc(node_telemetry_dir, java_major_version),
telemetry.Heapdump(node_telemetry_dir),
telemetry.DiskIo(self.metrics_store, node_count_on_host,
node_telemetry_dir, node_name),
telemetry.IndexSize(data_paths, self.metrics_store),
telemetry.StartupTime(self.metrics_store),
]
t = telemetry.Telemetry(enabled_devices, devices=node_telemetry)
env = self._prepare_env(car, node_name, java_home, t)
t.on_pre_node_start(node_name)
node_pid = self._start_process(binary_path, env)
node = cluster.Node(node_pid, host_name, node_name, t)
self.logger.info("Attaching telemetry devices to node [%s].",
node_name)
t.attach_to_node(node)
return node
def start(self, node_configurations):
nodes = []
for node_configuration in node_configurations:
node_name = node_configuration.node_name
host_name = node_configuration.ip
binary_path = node_configuration.binary_path
node_telemetry_dir = os.path.join(
node_configuration.node_root_path, "telemetry")
self.binary_paths[node_name] = binary_path
self._start_process(binary_path)
# only support a subset of telemetry for Docker hosts
# (specifically, we do not allow users to enable any devices)
node_telemetry = [
telemetry.DiskIo(self.metrics_store, len(node_configurations),
node_telemetry_dir, node_name),
]
t = telemetry.Telemetry(devices=node_telemetry)
telemetry.add_metadata_for_node(self.metrics_store, node_name,
host_name)
nodes.append(cluster.Node(0, host_name, node_name, t))
return nodes
