kafka报错：Connection to node -1 could not be established. Broker may not be available.

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kafka 报错：Connection to node -1 could not be established. Broker may not be available.

[1]首先这个一般是kafka挂了，重启kafka即可

bin/kafka-server-start.sh config/server.properties > /dev/null 2>&1 &

[2]kafka的dns要和ip严格一致，我曾经在kafka所在机器配置127.0.0.1，还是报错,/etc/hosts

10.10.2.155 node1.kafka

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