def configure_flume(hdfs):
hookenv.status_set('maintenance', 'Setting up Flume')
flume = Flume(get_dist_config())
flume.configure_flume()
flume.restart()
set_state('flumehdfs.started')
hookenv.status_set('active', 'Ready (Accepting agent connections)')
def stop_hive_wait_hdfs(db):
hookenv.status_set('maintenance', 'Stopping Apache Hive')
hive = Hive(get_dist_config())
hive.stop()
hive.close_ports()
remove_state('hive.started')
hookenv.status_set('blocked', 'Waiting for Hadoop connection')
def stop_hive_wait_hdfs(db):
hookenv.status_set('maintenance', 'Stopping Apache Hive')
hive = Hive(get_dist_config())
hive.stop()
hive.close_ports()
remove_state('hive.started')
hookenv.status_set('blocked', 'Waiting for Hadoop connection')
def start_spark(hadoop):
hookenv.status_set('maintenance', 'Setting up Apache Spark')
spark = Spark(get_dist_config())
spark.configure()
spark.start()
spark.open_ports()
set_state('spark.started')
hookenv.status_set('active', 'Ready')
def start_hive(hdfs, database):
hookenv.status_set('maintenance', 'Setting up Apache Hive')
hive = Hive(get_dist_config())
hive.setup_hive_config()
hive.configure_hive(database)
hive.open_ports()
hive.start()
set_state('hive.started')
hookenv.status_set('active', 'Ready')
def monitor_config_changes(hdfs):
hookenv.status_set('active', 'Ready (Accepting agent connections)')
config = hookenv.config()
if not data_changed('configuration', config):
return
flume = Flume(get_dist_config())
flume.configure_flume()
flume.restart()
def start_hive(hdfs, database):
hookenv.status_set('maintenance', 'Setting up Apache Hive')
hive = Hive(get_dist_config())
hive.setup_hive_config()
hive.configure_hive(database)
hive.open_ports()
hive.start()
set_state('hive.started')
hookenv.status_set('active', 'Ready')
def install_spark(hadoop):
dist = get_dist_config()
spark = Spark(dist)
if spark.verify_resources():
hookenv.status_set('maintenance', 'Installing Apache Spark')
dist.add_dirs()
dist.add_packages()
spark.install()
spark.setup_spark_config()
spark.install_demo()
set_state('spark.installed')
def install_hive(hadoop):
hookenv.status_set('maintenance', 'Installing base resources')
# Hive cannot handle - in the metastore db name and
# mysql uses the service name to name the db
if "-" in hookenv.service_name():
hookenv.status_set('blocked', 'Service name should not contain -. Redeploy with a different name.')
return False
hive = Hive(get_dist_config())
if hive.verify_resources():
hookenv.status_set('maintenance', 'Installing Apache Hive')
hive.install()
set_state('hive.installed')
return True
return False
def install_hive(hadoop):
hookenv.status_set('maintenance', 'Installing base resources')
# Hive cannot handle - in the metastore db name and
# mysql uses the service name to name the db
if "-" in hookenv.service_name():
hookenv.status_set(
'blocked',
'Service name should not contain -. Redeploy with a different name.'
)
return False
hive = Hive(get_dist_config())
if hive.verify_resources():
hookenv.status_set('maintenance', 'Installing Apache Hive')
hive.install()
set_state('hive.installed')
return True
return False
def set_installed(client):
dist = get_dist_config()
client.set_installed(dist.hadoop_version)
def missing_mysql():
hive = Hive(get_dist_config())
hive.new_db_connection()
hookenv.status_set('blocked', 'Waiting for relation to database')
def client_joined(hive):
dist = get_dist_config()
port = dist.port('hive')
hive.send_port(port)
hive.set_ready()
set_state('client.configured')
def missing_mysql():
hive = Hive(get_dist_config())
hive.new_db_connection()
hookenv.status_set('blocked', 'Waiting for relation to database')
def client_joined(hive):
dist = get_dist_config()
port = dist.port('hive')
hive.send_port(port)
hive.set_ready()
set_state('client.configured')
def stop_spark():
hookenv.status_set('maintenance', 'Stopping Apache Spark')
spark = Spark(get_dist_config())
spark.close_ports()
spark.stop()
remove_state('spark.started')
def client_present(client):
dist = get_dist_config()
rest_port = dist.port('livy')
client.send_rest_port(rest_port)
client.set_spark_started()
def install_flume(*args):
flume = Flume(get_dist_config())
if flume.verify_resources():
hookenv.status_set('maintenance', 'Installing Flume')
flume.install()
set_state('flumehdfs.installed')
