一、在同一系統(tǒng)中啟動多個實例產(chǎn)生的錯誤

[root@node2 opt]# /mnt/logstash/bin/logstash -f /mnt/logstash/conf.d/kafka.conf

Sending Logstash logs to /mnt/logstash/logs which is now configured via log4j2.properties

[2019-07-12T09:28:53,027][WARN ][logstash.config.source.multilocal] Ignoring the 'pipelines.yml' file because modules or command line options are specified

[2019-07-12T09:28:53,064][FATAL][logstash.runner          ] Logstash could not be started because there is already another instance using the configured data directory.  If you wish to run multiple instances, you must change the "path.data" setting.

[2019-07-12T09:28:53,081][ERROR][org.logstash.Logstash    ] java.lang.IllegalStateException: Logstash stopped processing because of an error: (SystemExit) exit

解決辦法：殺死進程重新啟動

[root@node2 opt]#ps -ef |grep logstash

[root@node2 opt]#kill -9 進程號

重新執(zhí)行消費：

[root@node2 opt]#/mnt/logstash/bin/logstash -f /mnt/logstash/conf.d/kafka.conf