def scale_cluster(self, cluster, instances):
processor = self._get_blueprint_processor(cluster)
cluster_spec = clusterspec.ClusterSpec(
json.dumps(processor.blueprint), cluster=cluster)
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for instance in instances:
host_role = utils.get_host_role(instance)
servers.append(h.HadoopServer(instance,
cluster_spec.node_groups
[host_role],
ambari_rpm=rpm))
ambari_info = self.get_ambari_info(cluster_spec)
self._update_ambari_info_credentials(cluster_spec, ambari_info)
for server in servers:
self._spawn('Ambari provisioning thread',
server.provision_ambari, ambari_info)
self._wait_for_host_registrations(self._get_num_hosts(cluster),
ambari_info)
# now add the hosts and the component
self._add_hosts_and_components(cluster_spec, servers,
ambari_info, cluster.name)
self._install_and_start_components(cluster.name, servers, ambari_info)
def create_cluster(self, cluster):
version = cluster.hadoop_version
handler = self.version_factory.get_version_handler(version)
cluster_spec = handler.get_cluster_spec(
cluster, self._map_to_user_inputs(
version, cluster.cluster_configs))
hosts = self._get_servers(cluster)
ambari_info = self.get_ambari_info(cluster_spec)
self.cluster_ambari_mapping[cluster.name] = ambari_info
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for host in hosts:
host_role = utils.get_host_role(host)
servers.append(
h.HadoopServer(host, cluster_spec.node_groups[host_role],
ambari_rpm=rpm))
self._provision_cluster(
cluster.name, cluster_spec, ambari_info, servers,
cluster.hadoop_version)
LOG.info("Install of Hadoop stack successful.")
# add service urls
self._set_cluster_info(cluster, cluster_spec)
def create_cluster(self, cluster):
version = cluster.hadoop_version
handler = self.version_factory.get_version_handler(version)
cluster_spec = handler.get_cluster_spec(
cluster, self._map_to_user_inputs(
version, cluster.cluster_configs))
hosts = self._get_servers(cluster)
ambari_info = self.get_ambari_info(cluster_spec)
self.cluster_ambari_mapping[cluster.name] = ambari_info
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for host in hosts:
host_role = utils.get_host_role(host)
servers.append(
h.HadoopServer(host, cluster_spec.node_groups[host_role],
ambari_rpm=rpm))
self._provision_cluster(
cluster.name, cluster_spec, ambari_info, servers,
cluster.hadoop_version)
# add the topology data file and script if rack awareness is
# enabled
self._configure_topology_for_cluster(cluster, servers)
LOG.info("Install of Hadoop stack successful.")
# add service urls
self._set_cluster_info(cluster, cluster_spec)
def scale_cluster(self, cluster, instances):
handler = self.version_factory.get_version_handler(
cluster.hadoop_version)
ambari_client = handler.get_ambari_client()
cluster_spec = handler.get_cluster_spec(
cluster, self._map_to_user_inputs(
cluster.hadoop_version, cluster.cluster_configs))
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for instance in instances:
host_role = utils.get_host_role(instance)
servers.append(h.HadoopServer(instance,
cluster_spec.node_groups
[host_role],
ambari_rpm=rpm))
ambari_info = self.get_ambari_info(cluster_spec)
self._update_ambari_info_credentials(cluster_spec, ambari_info)
for server in servers:
self._spawn('Ambari provisioning thread',
server.provision_ambari, ambari_info)
ambari_client.scale_cluster(cluster.name, cluster_spec, servers,
self._get_num_hosts(cluster), ambari_info)
ambari_client.cleanup(ambari_info)
def create_cluster(self, cluster, cluster_template):
if cluster_template is None:
raise ValueError("must supply cluster template")
cluster_spec = clusterspec.ClusterSpec(cluster_template, cluster=cluster)
hosts = self._get_servers(cluster)
ambari_host = self._determine_host_for_server_component("AMBARI_SERVER", cluster_spec, hosts)
self.cluster_name_to_ambari_host_mapping[cluster.name] = ambari_host
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for host in hosts:
host_role = utils.get_host_role(host)
servers.append(h.HadoopServer(host, cluster_spec.node_groups[host_role], ambari_rpm=rpm))
provisioned = self._provision_cluster(cluster.name, cluster_spec, ambari_host, servers)
if provisioned:
installed = self._install_services(cluster.name, ambari_host)
if installed:
LOG.info("Install of Hadoop stack successful.")
# add service urls
self._set_cluster_info(cluster, cluster_spec, hosts)
else:
raise ex.HadoopProvisionError("Installation of Hadoop stack failed.")
else:
raise ex.HadoopProvisionError("Provisioning of Hadoop cluster failed.")
def scale_cluster(self, cluster, instances):
handler = self.version_factory.get_version_handler(
cluster.hadoop_version)
ambari_client = handler.get_ambari_client()
cluster_spec = handler.get_cluster_spec(
cluster, self._map_to_user_inputs(
cluster.hadoop_version, cluster.cluster_configs))
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for instance in instances:
host_role = utils.get_host_role(instance)
servers.append(h.HadoopServer(instance,
cluster_spec.node_groups
[host_role],
ambari_rpm=rpm))
ambari_info = self.get_ambari_info(cluster_spec)
self._update_ambari_info_credentials(cluster_spec, ambari_info)
for server in servers:
self._spawn('Ambari provisioning thread',
server.provision_ambari, ambari_info, cluster_spec)
ambari_client.configure_scaled_cluster_instances(
cluster.name, cluster_spec, self._get_num_hosts(cluster),
ambari_info)
self._configure_topology_for_cluster(cluster, servers)
ambari_client.start_scaled_cluster_instances(cluster.name,
cluster_spec, servers,
ambari_info)
ambari_client.cleanup(ambari_info)
def scale_cluster(self, cluster, instances):
processor = self._get_blueprint_processor(cluster)
cluster_spec = clusterspec.ClusterSpec(
json.dumps(processor.blueprint), cluster=cluster)
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for instance in instances:
host_role = utils.get_host_role(instance)
servers.append(h.HadoopServer(instance,
cluster_spec.node_groups
[host_role],
ambari_rpm=rpm))
ambari_info = self.get_ambari_info(cluster_spec,
self._get_servers(cluster))
for server in servers:
self._spawn('Ambari provisioning thread',
server.provision_ambari, ambari_info)
self._wait_for_host_registrations(self._get_num_hosts(cluster),
ambari_info)
# now add the hosts and the component
self._add_hosts_and_components(cluster_spec, servers,
ambari_info, cluster.name)
self._install_and_start_components(cluster.name, servers, ambari_info)
def _get_ambari_host(self, servers):
# iterate thru servers and find the master server
host = next((server for server in servers
if utils.get_node_processes(server) is not None
and 'AMBARI_SERVER' in utils.get_node_processes(server)),
None)
if host is None:
host = next((server for server in servers
if utils.get_host_role(server) == 'MASTER'), None)
return host
def _determine_host_for_server_component(self, component, cluster_spec, servers):
found_node_group = None
node_groups = cluster_spec.node_groups
for node_group in node_groups.values():
if component in node_group.components:
found_node_group = node_group.name
for host in servers:
if utils.get_host_role(host) == found_node_group:
return host
raise Exception("Server component [{0}] not specified in configuration".format(component))
def _get_ambari_host(self, servers):
# iterate thru servers and find the master server
host = next(
(
server
for server in servers
if utils.get_node_processes(server) is not None and "AMBARI_SERVER" in utils.get_node_processes(server)
),
None,
)
if host is None:
host = next((server for server in servers if utils.get_host_role(server) == "MASTER"), None)
return host
def _determine_host_for_server_component(self, component, cluster_spec,
servers):
found_node_group = None
node_groups = cluster_spec.node_groups
for node_group in node_groups.values():
if component in node_group.components:
found_node_group = node_group.name
for host in servers:
if utils.get_host_role(host) == found_node_group:
return host
raise Exception(
'Server component [{0}] not specified in configuration'.format(
component))
def _generate_host_manifest(self):
host_manifest = {}
hosts = []
host_id = 1
for server in self.servers:
instance_info = n_helper.get_instance_info(server)
hosts.append({'host_id': host_id,
'hostname': server.hostname,
'role': utils.get_host_role(server),
'vm_image': instance_info.image,
'vm_flavor': instance_info.flavor,
'public_ip': server.management_ip,
'private_ip': server.internal_ip})
host_id += 1
host_manifest['hosts'] = hosts
return json.dumps(host_manifest).strip('{}')
def _generate_host_manifest(self, servers):
host_manifest = {}
hosts = []
host_id = 1
for server in servers:
instance_info = n_helper.get_instance_info(server)
hosts.append({
'host_id': host_id,
'hostname': server.hostname,
'role': utils.get_host_role(server),
'vm_image': instance_info.image,
'vm_flavor': instance_info.flavor,
'public_ip': server.management_ip,
'private_ip': server.internal_ip
})
host_id += 1
host_manifest['hosts'] = hosts
return json.dumps(host_manifest).strip('{}')
def _generate_host_manifest(self, servers):
host_manifest = {}
hosts = []
host_id = 1
for server in servers:
instance_info = n_helper.get_instance_info(server)
hosts.append(
{
"host_id": host_id,
"hostname": server.hostname,
"role": utils.get_host_role(server),
"vm_image": instance_info.image,
"vm_flavor": instance_info.flavor,
"public_ip": server.management_ip,
"private_ip": server.internal_ip,
}
)
host_id += 1
host_manifest["hosts"] = hosts
return json.dumps(host_manifest).strip("{}")
def create_cluster(self, cluster, cluster_template):
if cluster_template is None:
raise ValueError('must supply cluster template')
cluster_spec = clusterspec.ClusterSpec(cluster_template,
cluster=cluster)
hosts = self._get_servers(cluster)
ambari_host = self._determine_host_for_server_component(
'AMBARI_SERVER', cluster_spec, hosts)
self.cluster_name_to_ambari_host_mapping[cluster.name] = ambari_host
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for host in hosts:
host_role = utils.get_host_role(host)
servers.append(
h.HadoopServer(host,
cluster_spec.node_groups[host_role],
ambari_rpm=rpm))
provisioned = self._provision_cluster(cluster.name, cluster_spec,
ambari_host, servers)
if provisioned:
installed = self._install_services(cluster.name, ambari_host)
if installed:
LOG.info("Install of Hadoop stack successful.")
# add service urls
self._set_cluster_info(cluster, cluster_spec, hosts)
else:
raise ex.HadoopProvisionError(
'Installation of Hadoop stack failed.')
else:
raise ex.HadoopProvisionError(
'Provisioning of Hadoop cluster failed.')
def create_cluster(self, cluster, cluster_template):
if cluster_template is None:
raise ValueError('must supply cluster template')
cluster_spec = clusterspec.ClusterSpec(
cluster_template, cluster=cluster)
hosts = self._get_servers(cluster)
ambari_info = self.get_ambari_info(cluster_spec)
self.cluster_ambari_mapping[cluster.name] = ambari_info
rpm = self._get_rpm_uri(cluster_spec)
servers = []
for host in hosts:
host_role = utils.get_host_role(host)
servers.append(
h.HadoopServer(host, cluster_spec.node_groups[host_role],
ambari_rpm=rpm))
provisioned = self._provision_cluster(
cluster.name, cluster_spec, ambari_info, servers)
if provisioned:
installed = self._install_services(cluster.name, ambari_info)
if installed:
LOG.info("Install of Hadoop stack successful.")
# add service urls
self._set_cluster_info(cluster, cluster_spec, ambari_info)
else:
raise ex.HadoopProvisionError(
'Installation of Hadoop stack failed.')
else:
raise ex.HadoopProvisionError(
'Provisioning of Hadoop cluster failed.')
