Problems with Kafka producer node

[andrea.gi...@gmail.com]

Hello,

I have installed node-red on raspberry pi 3 to collect data and then store them in kafka but now I have some issue with kafka producer node. 

I've setup a kafka server on my laptop that correctly works in console: if I send messages on kafka producer console I correctly receive it on consumer console.

Unfortunately when I try to inject a timestamp in kafka producer in node-red on raspberry, server gives no response. 

- Debug page of node-red says: "BrokerNotAvailableError: Broker not available"

- In producer node ZKQuorum field I've typed the ip of the laptop and set port to 9092, as I seen in example on npm site.

- I'm sure the topic is correct.

- I'm sure zookeeper is running and kafka server also. Indeed if at same time I try to use kafka with laptop console it works great.

Any hint about this issue?

[andrea.gi...@gmail.com]

Update. I've tried to implement a python function in node-red to send a simple message to the kafka producer and I have obtained a deeper error log in:

/usr/local/lib/python2.7/dist-packages/kafka/client_async.py", line 808

I opened file and at line 808 there is a function with this comment:

It can be helpful?

[Ben Hardill]

Please do not cross post questions here and on Stackoverflow, as it just fragments answers, the people who are likely to answer look at both places.