def stop_spark():
hookenv.status_set("maintenance", "Stopping Livy REST server")
dist = DistConfig(data=layer.options("livy"))
livy = Livy(dist)
livy.close_ports()
livy.stop()
remove_state("livy.started")
hookenv.status_set("maintenance", "Stopping Apache Spark")
dist = DistConfig(data=layer.options("apache-spark"))
spark = Spark(dist)
spark.close_ports()
spark.stop()
remove_state("spark.started")
def stop_spark():
hookenv.status_set('maintenance', 'Stopping Livy REST server')
dist = DistConfig(data=layer.options('livy'))
livy = Livy(dist)
livy.close_ports()
livy.stop()
remove_state('livy.started')
hookenv.status_set('maintenance', 'Stopping Apache Spark')
dist = DistConfig(data=layer.options('apache-spark'))
spark = Spark(dist)
spark.close_ports()
spark.stop()
remove_state('spark.started')
def reconfigure_spark(hadoop): # pylint: disable=w0613
config = hookenv.config()
if not data_changed("configuration", config):
return
hookenv.status_set("maintenance", "Configuring Apache Spark and Livy REST server")
dist = DistConfig(data=layer.options("apache-spark"))
spark = Spark(dist)
dist = DistConfig(data=layer.options("livy"))
livy = Livy(dist)
livy.stop()
spark.stop()
spark.configure()
mode = hookenv.config()["spark_execution_mode"]
livy.configure(mode)
spark.start()
livy.start()
hookenv.status_set("active", "Ready")
def reconfigure_spark(hadoop): # pylint: disable=w0613
config = hookenv.config()
if not data_changed('configuration', config):
return
hookenv.status_set('maintenance',
'Configuring Apache Spark and Livy REST server')
dist = DistConfig(data=layer.options('apache-spark'))
spark = Spark(dist)
dist = DistConfig(data=layer.options('livy'))
livy = Livy(dist)
livy.stop()
spark.stop()
spark.configure()
mode = hookenv.config()['spark_execution_mode']
livy.configure(mode)
spark.start()
livy.start()
hookenv.status_set('active', 'Ready')
