Kafka isn't running

[bluesmoon]

Link: https://www.linode.com/docs/guides/manually-deploy-kafka-cluster/

Issue

After following the instructions in this guide, I had to reboot my linodes so that new settings would take effect. When they came back kafka was not running.

I tried to ssh in and start kafka manually, but then it won't accept SSL traffic. It errors with this message:

Invalid receive (size = 369295617 larger than 104857600)

The number 369295617 is 0x16 0x03 0x01 0x01 which are the first 4 bytes of the TLS handshake, so it looks like kafka isn't expecting traffic over TLS.

Suggested Fix

[Rajakavitha1]

Hi @bluesmoon thank you for reporting the issue we are validating the guide.

[bluesmoon]

The issue is that I had a firewall enabled that did not allow connections on the 192.168.0.0 IPs. Kafka was starting and then stopping when it could not create consensus between the brokers.

I think the only addition to the guide should be to mention firewall pitfalls.