Port forward the service to localhost, but unable to connect.

[hustshawn]

Hi,

I followed the instruction

kubectl port-forward --namespace bitnami-kafka svc/bnm-kafka 9092:9092 &
echo "Kafka Broker Endpoint: 127.0.0.1:9092"

, but unable to connect from my local client with this address.

A sample python code looks like this

import os
KAFKA_HOSTS = os.getenv("KAFKA_HOSTS", "localhost:9092")
TOPIC = 'test'

from kafka import KafkaProducer
import json
import time

producer = KafkaProducer(
    bootstrap_servers=KAFKA_HOSTS,
    value_serializer=lambda v: json.dumps(v).encode('utf-8')
)

data = {
  "timestamp" : "2019-01-14T16:07:09.549963",
  "ip" : "192.168.123.123",
  "user" : "Maker01",
  "activities" : "Login"
}
for i in range(5):
    producer.send(TOPIC, data)
    print("Sent data: {}".format(data))
    time.sleep(1)

and I got the error below

Traceback (most recent call last):
  File "/Users/local/.pyenv/versions/kafka/lib/python3.6/site-packages/kafka/conn.py", line 225, in connect
    socket.SOCK_STREAM)
  File "/Users/local/.pyenv/versions/3.6.1/lib/python3.6/socket.py", line 743, in getaddrinfo
    for res in _socket.getaddrinfo(host, port, family, type, proto, flags):
socket.gaierror: [Errno 8] nodename nor servname provided, or not known

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "producer.py", line 8, in <module>
    value_serializer=lambda v: json.dumps(v).encode('utf-8')
  File "/Users/local/.pyenv/versions/kafka/lib/python3.6/site-packages/kafka/producer/kafka.py", line 334, in __init__
    **self.config)
  File "/Users/local/.pyenv/versions/kafka/lib/python3.6/site-packages/kafka/client_async.py", line 204, in __init__
    self.config['api_version'] = self.check_version(timeout=check_timeout)
  File "/Users/local/.pyenv/versions/kafka/lib/python3.6/site-packages/kafka/client_async.py", line 796, in check_version
    self._maybe_connect(try_node)
  File "/Users/local/.pyenv/versions/kafka/lib/python3.6/site-packages/kafka/client_async.py", line 324, in _maybe_connect
    conn.connect()
  File "/Users/local/.pyenv/versions/kafka/lib/python3.6/site-packages/kafka/conn.py", line 230, in connect
    self._init_host, self._init_port, ex
socket.gaierror: getaddrinfo failed for bnm-kafka-headless.bitnami-kafka:9092, exception was [Errno 8] nodename nor servname provided, or not known. Is your advertised.listeners (calledadvertised.host.name before Kafka 9) correct and resolvable?

The same code actually run well if Kafka deployed on an EC2 instance.

Any idea about this issue? or where I am getting wrong

[arapulido]

Hello @hustshawn

What chart did you deploy? We can point you to the right place to open an issue about it

[hustshawn]

@arapulido Sorry for making confusion. I should post the issue to bitnami/charts repo. Reposted the issue here