journalctl -u kafka |grep ERROR
根据错误日志筛选分析 最近的错误信息如下：
Feb 25 10:03:54 iZ8vb9f7hiv5r7dqd2ub3xZ kafka-server-start.sh[22495]: [2021-02-25 10:03:54,957] ERROR Failed to clean up log for __consumer_offsets-8 in dir /tmp/kafka-logs due to IOException (kafka.server.LogDirFailureChannel) Feb 25 10:03:54 iZ8vb9f7hiv5r7dqd2ub3xZ kafka-server-start.sh[22495]: [2021-02-25 10:03:54,984] ERROR Failed to clean up log for __consumer_offsets-8 in dir /tmp/kafka-logs due to IOException (kafka.server.LogDirFailureChannel) Feb 25 10:03:55 iZ8vb9f7hiv5r7dqd2ub3xZ kafka-server-start.sh[22495]: [2021-02-25 10:03:55,039] ERROR Failed to clean up log for __consumer_offsets-8 in dir /tmp/kafka-logs due to IOException (kafka.server.LogDirFailureChannel) Feb 25 10:03:55 iZ8vb9f7hiv5r7dqd2ub3xZ kafka-server-start.sh[22495]: [2021-02-25 10:03:55,036] ERROR Shutdown broker because all log dirs in /tmp/kafka-logs have failed (kafka.log.LogManager)
日志分析：
没找到 /tmp/kafka-logs 下面的某个文件
查找思路：
vi /opt/kafka/config/server.properties
根据 kafka配置信息搜索这个目录；发现是/tmp/kafka-logs 是日志存储位置
问题原因：
/tmp目录可能被系统不定时清理；清理后会丢失文件；kafka报错
解决方案：
1.修改 systemd的配置文件 忽略kafka日志目录
vi /usr/lib/tmpfiles.d/tmp.conf
添加一个忽略路径
X /tmp/kafka-logs