def create_job_queue_topic(topic_name: str, number_of_partitions: int, broker: str, stop_topic: str,
job_report_topic: str):
print("Checking if Kafka is up...", flush=True)
admin_client = AdminClient({'bootstrap.servers': broker})
kafka_up = False
while not kafka_up:
try:
print("Checking if Kafka is up...")
admin_client.list_topics(timeout=10)
except:
continue
kafka_up = True
print("Kafka is up!")
fs = admin_client.create_topics([NewTopic(topic_name, num_partitions=number_of_partitions, replication_factor=1),
NewTopic(stop_topic, num_partitions=1, replication_factor=1),
NewTopic(job_report_topic, num_partitions=1, replication_factor=1)])
for topic, f in fs.items():
try:
f.result() # The result itself is None
print("Topic {} created".format(topic))
except Exception as e:
print("Failed to create topic {}: {}".format(topic, e))
def create_topic(topicname, partitions, replication_factor, new_conf):
# type: (str, int, int, dict)
"""Create a new topic, setting partition and replication-factor immediately.
Keyword arguments:
topicname -- topicname
partitions -- number of partitions
replication_factor -- number of replications, which is once set only mutable with a zookeeper
new_conf -- dictionary with topic-config, for example containing retention.ms
"""
all_valid = False
# while not sure all topic-configs are valid
while not all_valid:
topic = [
NewTopic(topicname,
num_partitions=partitions,
replication_factor=replication_factor,
config=new_conf)
]
try:
# only validate creation of topic
fs = admin.create_topics(topic, validate_only=True)
y = list(fs.values())
y[0].result()
all_valid = True
except KafkaException as e:
# Errorcode == 40 says we want to set a not-supported topic-config
if e.args[0].code == 40:
faultiemsg = e.args[0].str()
faultiemsg = faultiemsg.split(" ")
# extract which config is not supported
faultieconf = faultiemsg[-1]
# remove unsupported config
new_conf.pop(faultieconf)
# print warning
module.warn(
"Will not set Topic-config %s, because this Kafka-Cluster"
" does no support this config." % (faultieconf))
else:
msg = (
"For some reason we won't be able to create Topic %s: %s."
% (topic, e))
fail_module(msg)
# Create Topic for real
topic = [
NewTopic(topicname,
num_partitions=partitions,
replication_factor=replication_factor,
config=new_conf)
]
try:
fs = admin.create_topics(topic)
y = list(fs.values())
y[0].result()
except KafkaException as e:
msg = ("Failed to create topic %s: %s." % (topic, e))
fail_module(msg)
def test_integration_broker_connect(ensure_broker_service: Fixture,
ensure_connect_service: Fixture) -> None:
"""Test kafkaconnect with a Kafka broker and Kafka Connect.
pytest-docker uses the docker-compose.yaml in the test directory.
"""
broker_url = Config.broker_url
admin_client = AdminClient({"bootstrap.servers": broker_url})
t1 = NewTopic(topic="test.t1", num_partitions=1)
t2 = NewTopic(topic="test.t2", num_partitions=1)
t3 = NewTopic(topic="test.t3", num_partitions=1)
# Create test topics in Kafka
try:
admin_client.create_topics([t1, t2, t3])
time.sleep(1)
except KafkaException:
return None
# Test topic discovery
topic = Topic(broker_url=broker_url,
topic_regex="test.*",
excluded_topics="test.t1")
assert "test.t2" in topic.names
assert "test.t3" in topic.names
# Configure the connector
connect = Connect(connect_url=Config.connect_url)
connect_config = InfluxConfig()
connect_config.update_topics(topic.names)
# Create the connector using the Kafka Connect API
connect.create_or_update(name="influxdb-sink",
connect_config=connect_config.asjson())
# List connectors from the Kafka Connect API
list = connect.list()
assert "influxdb-sink" in list
def create_topics(adminclient: AdminClient, topics: list) -> None:
""" Create topics """
new_topics = [
NewTopic(topic, num_partitions=PARTITIONS, replication_factor=1)
for topic in topics if '_connect' not in topic
]
connect_topics = [
NewTopic(topic,
num_partitions=CONNECT_PARTITIONS,
replication_factor=1) for topic in topics
if '_connect' in topic
]
if connect_topics:
new_topics.extend(connect_topics)
print('\tCreating topics. . .')
# Call create_topics to asynchronously create topics, a dict
# of <topic,future> is returned.
futures = adminclient.create_topics(new_topics)
# Wait for operation to finish.
# Timeouts are preferably controlled by passing request_timeout=15.0
# to the create_topics() call.
# All futures will finish at the same time.
for topic, future in futures.items():
try:
future.result() # The result itself is None
print(f"\t\tTopic {topic} created")
except Exception as error:
print(f"\t\tFailed to create topic {topic}: ", error)
def __init__(self):
self.admin_client = AdminClient({
'bootstrap.servers':
'ip-172-31-87-92.ec2.internal:9092,ip-172-31-92-117.ec2.internal:9092,ip-172-31-93-248.ec2.internal:9092'
})
self.topic_list = []
self.topic_list.append(
NewTopic(topic="speed", num_partitions=2, replication_factor=1))
self.topic_list.append(
NewTopic(topic="lap", num_partitions=3, replication_factor=1))
self.topic_list.append(
NewTopic(topic="telemetry", num_partitions=5,
replication_factor=1))
def register_message_type(self, admin_id: str, message_types: list, \
partitions: int):
"""
Creates a list of message types.
Parameters:
admin_id A String that represents Admin client ID.
message_types This is essentially equivalent to the list of
queue/topic name. For e.g. ["Alert"]
partitions Integer that represents number of partitions to be
created.
"""
admin = self._clients['admin'][admin_id]
new_message_type = [NewTopic(each_message_type, \
num_partitions=partitions) for each_message_type in message_types]
created_message_types = admin.create_topics(new_message_type)
self._task_status(created_message_types)
for each_message_type in message_types:
for list_retry in range(1, self._max_list_message_type_count+2):
if each_message_type not in \
list(self._get_metadata(admin).keys()):
if list_retry > self._max_list_message_type_count:
raise MessageBusError(errno.EINVAL, "Maximum retries \
exceeded for creating %s.", each_message_type)
time.sleep(list_retry*1)
continue
else:
break
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
client = AdminClient({"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
#if self.topic_name in Producer.existing_topics:
if self.check_topic_exists(client, self.topic_name):
print(f"the topic {self.topic_name} has already been created")
logger.info(f"the topic {self.topic_name} has already been created - skipping")
return
futures = client.create_topics(
[
NewTopic(
topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas
)
]
)
for topic, future in futures.items():
try:
future.result()
print(f"topic created {self.topic_name}")
logger.info(f"topic created successfully, {self.topic_name}")
except Exception as e:
print(f"failed to create topic {self.topic_name}: {e}")
logger.error(f"failed to create topic {self.topic_name}")
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
# draft
client = AdminClient({"bootstrap.servers": BROKER_URL})
topic_existence = client.list_topics(timeout=5)
if self.topic_name in set(
a.topic for a in iter(topic_existence.topics.values())):
logger.info(f"topic already exists {self.topic_name}")
return
else:
futures = client.create_topics([
# TODO
NewTopic(topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
config={
"cleanup.policy": "delete",
"compression.type": "lz4",
"delete.retention.ms": "2000",
"file.delete.delay.ms": "2000"
})
])
for topic, future in futures.items():
try:
future.result()
print("topic created")
except Exception as e:
print(f"failed to create topic {self.topic_name}: {e}")
def create_topic(self, topic_name):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does
# not already exist on the Kafka Broker.
#
#
client = AdminClient(
{"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
does_topic_exist = self.check_topic_exists(client, self.topic_name)
if does_topic_exist:
logger.info(f"Topic {self.topic_name} exists. Will not create")
return
logger.info(f"Creating topic: {self.topic_name}")
topic = NewTopic(
self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
)
futures = client.create_topics([topic])
for topic, future in futures.items():
try:
future.result()
print("topic created")
except Exception as e:
msg = f"failed to create topic {topic_name}: {e}"
logger.fatal(msg)
print(msg)
raise
def create_topic(conf, topic):
"""
Create a topic if needed
Examples of additional admin API functionality:
https://github.com/confluentinc/confluent-kafka-python/blob/master/examples/adminapi.py
"""
a = AdminClient({
'bootstrap.servers': conf['bootstrap.servers'],
'sasl.mechanisms': 'PLAIN',
'security.protocol': 'SASL_SSL',
'sasl.username': conf['sasl.username'],
'sasl.password': conf['sasl.password']
})
fs = a.create_topics([NewTopic(
topic,
num_partitions=1,
replication_factor=3
)])
for topic, f in fs.items():
try:
f.result() # The result itself is None
print("Topic {} created".format(topic))
except Exception as e:
# Continue if error code TOPIC_ALREADY_EXISTS, which may be true
# Otherwise fail fast
if e.args[0].code() != KafkaError.TOPIC_ALREADY_EXISTS:
print("Failed to create topic {}: {}".format(topic, e))
sys.exit(1)
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
#
#
# logger.info("topic creation kafka integration incomplete - skipping")
client = AdminClient(
{"bootstrap.servers": "PLAINTEXT://localhost:9092"})
# Get the list of existing topics
exists_topic_list = client.list_topics()
# if exists_topic_list.topics.get(self.topic_name)
if self.topic_name in exists_topic_list.topics:
logger.info(f"Topic Skipped - Exists: {self.topic_name}")
return
futures = client.create_topics([
NewTopic(topic=self.topic_name,
num_partitions=5,
replication_factor=1)
])
for topic, future in futures.items():
try:
future.result()
logger.info(f"Topic has been created: {topic}")
except Exception as e:
logger.warning(f"failed to create topic {topic}: {e}")
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
admin_client = AdminClient(self.broker_properties)
new_topic = NewTopic(self.topic_name, 1, 1)
admin_client.create_topics([new_topic])
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
#
#
a = AdminClient(
{'bootstrap.servers': self.broker_properties['broker_url']})
new_topics = [
NewTopic(self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
config={
"cleanup.policy": "compact",
"compression.type": "lz4",
"delete.retention.ms": 100,
"file.delete.delay.ms": 100
})
]
fs = a.create_topics(new_topics)
for topic, f in fs.items():
try:
f.result()
logger.info('Topic {} is created.'.format(topic))
except Exception as e:
logger.info("Failed to create topic {}".format(
self.topic_name))
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
logger.info(f"Creating topic: {self.topic_name}")
futures = self.adminclient.create_topics([
NewTopic(
topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
config={
"cleanup.policy": "delete",
"compression.type": "lz4",
"delete.retention.ms": "2000",
"file.delete.delay.ms": "2000",
},
)
])
for topic, future in futures.items():
try:
future.result()
except Exception as e:
if 36 == e.args[0].code():
logger.info(f"topic {topic} already exists")
pass
else:
logger.error(f"failed to create topic {topic}: {e}")
raise
def create_or_ensure_topic(admin, topic, min_partitions, min_replicas):
metadata = admin.list_topics(timeout=10)
if topic not in metadata.topics:
# Create the topic for the first time
print("Topic %s does not exist - creating..." % (topic))
new_topics = [
NewTopic(topic,
num_partitions=min_partitions,
replication_factor=min_replicas)
]
fs = admin.create_topics(new_topics)
for topic, f in fs.items():
try:
f.result()
print("Topic %s created" % (topic))
except Exception as e:
print("Failed to create topic %s - %s" % (topic, e))
else:
# Check the partitions and replication is at least high enough
if min_partitions > len(metadata.topics[topic].partitions):
new_partitions = [NewPartitions(topic, min_partitions)]
fs = admin.create_partitions(new_partitions)
for topic, f in fs.items():
try:
f.result()
print("Additional partitions for %s created" % (topic))
except Exception as e:
print("Failed to add partitions to topic %s - %s" %
(topic, e))
def main():
"""Runs the exercise"""
# TODO: Configure the AdminClient with `bootstrap.servers`
# See: https://docs.confluent.io/current/clients/confluent-kafka-python/#confluent_kafka.admin.AdminClient
# client = AdminClient(...)
client = AdminClient({"bootstrap.servers": BROKER_URL})
# TODO: Create a NewTopic object. Don't forget to set partitions and replication factor to 1!
# See: https://docs.confluent.io/current/clients/confluent-kafka-python/#confluent_kafka.admin.NewTopic
# topic = NewTopic(...)
topic = NewTopic(TOPIC_NAME, num_partitions=1, replication_factor=1)
# TODO: Using `client`, create the topic
# See: https://docs.confluent.io/current/clients/confluent-kafka-python/#confluent_kafka.admin.AdminClient.create_topics
# client.create_topics(...)
client.create_topics([topic])
try:
asyncio.run(produce_consume())
except KeyboardInterrupt as e:
print("shutting down")
finally:
# TODO: Using `client`, delete the topic
# See: https://docs.confluent.io/current/clients/confluent-kafka-python/#confluent_kafka.admin.AdminClient.delete_topics
# client.delete_topics(...)
client.delete_topics([topic])
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
#
#
logger.info("beginning topic creation for %s", self.topic_name)
client = AdminClient(
{"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
topic_metadata = client.list_topics(timeout=5)
if self.topic_name in set(
t.topic for t in iter(topic_metadata.topics.values())):
logger.info("not recreating existing topic %s", self.topic_name)
return
logger.info(
"creating topic %s with partition %s replicas %s",
self.topic_name,
self.num_partitions,
self.num_replicas,
)
futures = client.create_topics([
NewTopic(
topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
)
])
def create_topic(client, topic_name):
"""Creates the topic with the given topic name"""
# TODO: Create the topic. Make sure to set the topic name, the number of partitions, the
# replication factor. Additionally, set the config to have a cleanup policy of delete, a
# compression type of lz4, delete retention milliseconds of 2 seconds, and a file delete delay
# milliseconds of 2 second.
#
# See: https://docs.confluent.io/current/clients/confluent-kafka-python/#confluent_kafka.admin.NewTopic
# See: https://docs.confluent.io/current/installation/configuration/topic-configs.html
futures = client.create_topics([
# TODO
NewTopic(topic=topic_name,
num_partitions=5,
replication_factor=1,
config={
'cleanup.policy': 'compact',
'compression.type': 'lz4',
'delete.retention.ms': 100,
'file.delete.delay.ms': 100,
})
])
for topic, future in futures.items():
try:
future.result()
print("topic created")
except Exception as e:
print(f"failed to create topic {topic_name}: {e}")
raise
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
client = AdminClient(
{"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
topic_metadata = client.list_topics(timeout=5)
if self.topic_name in set(
t.topic for t in iter(topic_metadata.topics.values())):
logger.info("Skipping existing topic {}".format(self.topic_name))
return
logger.info("Creating topic {} with partition {} replicas {}".format(
self.topic_name, self.num_partitions, self.num_replicas))
futures = client.create_topics([
NewTopic(
topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
)
])
for topic, future in futures.items():
try:
future.result()
logger.info("Topic created")
except Exception as e:
logger.fatal("Failed to create topic {}: {}".format(topic, e))
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
#
#
client = AdminClient(
{"bootstrap.servers": "PLAINTEXT://localhost:9092"})
topic_meta = client.list_topics()
futures = client.create_topics([
NewTopic(
topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
config={
"cleanup.policy": "delete",
"compression.type": "lz4",
"delete.retention.ms": "100",
"file.delete.delay.ms": "100",
},
)
])
for topic, future in futures.items():
try:
future.result()
print("topic created")
except Exception as e:
print(f"failed to create topic {topic}: {e}")
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
#
#
client = AdminClient({"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
topic_metadata = client.list_topics(timeout=5)
if topic_metadata.topics.get(self.topic_name) is None:
newTopic = NewTopic(
topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
config={
"cleanup.policy": "compaction",
"compression.type": "lz4",
"delete.retention.ms": 100,
"file.delete.delay.ms": 100
}
)
client.create_topics([newTopic])
## topic created
logger.info("producer create")
def main():
"""Checks for topic and creates the topic if it does not exist"""
client = AdminClient({"bootstrap.servers": "PLAINTEXT://kafka0:19092"})
pages = NewTopic("com.udacity.streams.pages", 10, 1)
clickevents = NewTopic("com.udacity.streams.clickevents", 10, 1)
try:
client.create_topics([pages, clickevents])
except Exception as e:
print(f"encountered error creating topics: {e}")
else:
print("created topics pages and clickevents")
try:
produce()
except KeyboardInterrupt as e:
print("shutting down")
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
client = AdminClient({
'bootstrap.servers': config['broker']['bootstrap.servers']
})
if len(Producer.existing_topics) == 0:
topics = client.list_topics(timeout=10).topics
for topic in topics.values():
Producer.existing_topics.add(str(topic))
if self.topic_name in Producer.existing_topics:
return
Producer.existing_topics.add(self.topic_name)
futures = client.create_topics([
NewTopic(
self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas
)
])
for _, future in futures.items():
try:
future.result()
except KafkaException as ke:
logger.error(
f"topic creation error - {self.topic_name} - {ke}"
)
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
# If topic does not exist, create it
if not self.topic_exists():
# Create new topic object
new_topic = NewTopic(
self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas)
# Create new topic
self.admin_client.create_topics([new_topic], operation_timeout=10.0)
# Confirm that topic has been created
logger.info(f"Confirming topic {self.topic_name} creation")
# Maybe this is not the best idea to wait here.
# However, better than not having any errors
# Any suggestions on how to handle this ?
time.sleep(0.1)
if not self.topic_exists():
logger.error(f"Could not create topic {self.topic_name}")
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
#
#
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
client = AdminClient(
{"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
if self.topic_name in client.list_topics().topics:
logger.info(
f'Topic {self.topic_name} exists in client. Topic will not be created. Finishing process.'
)
return
futures = client.create_topics([
NewTopic(topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas)
])
for topic, future in futures.items():
try:
future.result()
print("topic created")
except Exception as e:
print(f"failed to create topic {self.topic_name}: {e}")
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
# TODO: Write code that creates the topic for this producer if it does not already exist on
# the Kafka Broker.
logger.info("topic creation kafka integration incomplete - skipping")
client = AdminClient(
{"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
topic_metadata = client.list_topics(timeout=5)
if self.topic_name in set(
t.topic for t in iter(topic_metadata.topics.values())):
return
futures = client.create_topics([
NewTopic(
topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas,
)
])
for topic, future in futures.items():
try:
future.result()
logger.info("Topic created")
except Exception as e:
logger.error("failed to create topic %s: %s", topic, e)
def bootstrap(bootstrap_server, force):
"""
Warning: Not intended to be used in production yet.
"""
if not force:
raise click.ClickException('Must use --force to run')
from confluent_kafka.admin import AdminClient, NewTopic
client = AdminClient({
'bootstrap.servers': ','.join(bootstrap_server),
'socket.timeout.ms': 1000,
})
topics = [
NewTopic(o.pop('topic'), **o) for o in settings.KAFKA_TOPICS.values()
]
for topic, future in client.create_topics(topics).items():
try:
future.result()
print("Topic %s created" % topic)
except Exception as e:
print("Failed to create topic %s: %s" % (topic, e))
from snuba.clickhouse import ClickhousePool, get_table_definition, get_test_engine
# Need to better figure out if we are configured to use replicated
# tables or distributed tables, etc.
ClickhousePool().execute(
get_table_definition(
settings.DEFAULT_LOCAL_TABLE,
get_test_engine(),
))
def create_topic(client, topic_name):
"""
Creates a Kafka topic
Args:
client (Kafka Client): The Kafka admin client
topic_name (str): the topic to be created
"""
futures = client.create_topics([
NewTopic(
topic=topic_name,
num_partitions=5,
replication_factor=1,
config={
"cleanup.policy": "delete",
"delete.retention.ms": "2000",
"file.delete.delay.ms": "2000",
},
)
])
for topic, future in futures.items():
try:
future.result()
logger.info("topic created")
except Exception as e:
logger.error(f"failed to create topic {topic_name}: {e}")
def create_topics(self,
*topic_name,
num_partitions=1,
replication_factor=1):
"""Create topics
Args:
*topic_name:
num_partitions:
replication_factor:
"""
new_topics = [
NewTopic(topic,
num_partitions=num_partitions,
replication_factor=replication_factor)
for topic in topic_name
]
# Call create_topics to asynchronously create topics, a dict
# of <topic,future> is returned.
fs = self.a.create_topics(new_topics)
# Wait for operation to finish.
# Timeouts are preferably controlled by passing request_timeout=15.0
# to the create_topics() call.
# All futures will finish at the same time.
for topic, f in fs.items():
try:
f.result() # The result itself is None
print("Topic {} created".format(topic))
except Exception as e:
print("Failed to create topic {}: {}".format(topic, e))
def create_topic(self):
"""Creates the producer topic if it does not already exist"""
# TODO: Write code that creates the topic for this producer if it does not already exist on the Kafka Broker.
client = AdminClient(
{"bootstrap.servers": self.broker_properties["bootstrap.servers"]})
topic_exsists = self.check_topic_exists(client, self.topic_name)
if (topic_exsists):
logger.info(f'Topic {self.topic_name} exsists')
return
logger.info(f"Creating topic: {self.topic_name}")
futures = client.create_topics([
NewTopic(topic=self.topic_name,
num_partitions=self.num_partitions,
replication_factor=self.num_replicas)
])
for topic, future in futures.items():
try:
future.result()
logger.info("topic created")
except Exception as e:
logger.fatal("failed to create topic %s: %s", topic, e)