Failed to acquire lock on file .lock in /tmp/kafka-logs. A Kafka instance in another process or thread is using this directory.

1. 問題現象

　　啟動 kafka 時報錯：Failed to acquire lock on file .lock in /tmp/kafka-logs. A Kafka instance in another process or thread is using this directory.

2. 解決方案

2.1 方案一

　　刪除 /tmp/kafka-logs 目錄，然后重啟 kafka；

2.2 方案二

　　修改配置的日志文件目錄

　　在 config/server.properties 中修改 log.dirs 的參數值。