Kafka : Connection to node -1 could not be established. Broker may not be available
What is Kafka?
Apache Kafka is an open-source stream-processing software platform developed by LinkedIn and donated to the Apache Software Foundation, written in Scala and Java. The project aims to provide a unified, high-throughput, low-latency platform for handling real-time data feeds.
Error:
Following Errors occurs when we have following causes:1. The Listener is not correct in server.properties file.
2. The listener FQDN is not getting resolved.
Resolution:
1. Enter the Listener details correctly.
Change in server.properties :
#listeners=PLAINTEXT://:9092
to
listeners=PLAINTEXT://localhost:9092
#listeners=PLAINTEXT://:9092
to
listeners=PLAINTEXT://localhost:9092
2. Make sure your FQDN is getting resolved.
Now restart kafka Service.
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