【現象】

mesos啟動失敗，查看mesos狀態報錯：

[root@hps102 ~]# systemctl status mesos-master ● mesos-master.service - Mesos MasterLoaded: loaded (/usr/lib/systemd/system/mesos-master.service; enabled; vendor preset: disabled)Active: activating (auto-restart) (Result: exit-code) since Mon 2016-05-30 15:26:11 CST; 5s agoProcess: 7783 ExecStart=/usr/bin/mesos-init-wrapper master (code=exited, status=1/FAILURE)Main PID: 7783 (code=exited, status=1/FAILURE)May 30 15:26:10 hps102 systemd[1]: mesos-master.service: main process exited, code=exited, status=1/FAILURE May 30 15:26:11 hps102 systemd[1]: Unit mesos-master.service entered failed state. May 30 15:26:11 hps102 systemd[1]: mesos-master.service failed.

通過journalctl查看mesos-master日志：

[root@hps102 ~]# journalctl -f -u mesos-master -- Logs begin at Mon 2016-05-30 04:03:01 CST. -- May 30 15:27:52 hps102 systemd[1]: mesos-master.service holdoff time over, scheduling restart. May 30 15:27:52 hps102 systemd[1]: Started Mesos Master. May 30 15:27:52 hps102 systemd[1]: Starting Mesos Master... May 30 15:27:52 hps102 mesos-master[8200]: Failed to load unknown flag 'quorum.rpmsave' May 30 15:27:52 hps102 mesos-master[8200]: May 30 15:27:52 hps102 mesos-master[8200]: Usage: mesos-master [options] May 30 15:27:52 hps102 mesos-master[8200]: May 30 15:27:52 hps102 mesos-master[8200]: --acls=VALUE The value could be a JSON-formatted string of ACLs May 30 15:27:52 hps102 mesos-master[8200]: or a file path containing the JSON-formatted ACLs used May 30 15:27:52 hps102 systemd[1]: mesos-master.service: main process exited, code=exited, status=1/FAILURE May 30 15:27:52 hps102 systemd[1]: Unit mesos-master.service entered failed state. May 30 15:27:52 hps102 systemd[1]: mesos-master.service failed. ^XMay 30 15:28:12 hps102 systemd[1]: mesos-master.service holdoff time over, scheduling restart. May 30 15:28:12 hps102 systemd[1]: Started Mesos Master. May 30 15:28:12 hps102 systemd[1]: Starting Mesos Master... May 30 15:28:12 hps102 systemd[1]: mesos-master.service: main process exited, code=exited, status=1/FAILURE May 30 15:28:12 hps102 systemd[1]: Unit mesos-master.service entered failed state. May 30 15:28:12 hps102 systemd[1]: mesos-master.service failed.

【原因】

查看mesos配置目錄：

[root@hps102 ~]# ll /etc/mesos* /etc/mesos: total 8 -rw-r--r-- 1 root root 65 May 30 15:21 zk -rw-r--r-- 1 root root 65 May 30 15:04 zk.rpmsave/etc/mesos-master: total 24 -rw-r--r-- 1 root root 5 May 30 15:21 logging_level -rw-r--r-- 1 root root 2 May 30 15:21 quorum -rw-r--r-- 1 root root 2 May 30 15:03 quorum.rpmsave -rw-r--r-- 1 root root 17 May 30 15:21 work_dir -rw-r--r-- 1 root root 17 May 30 15:03 work_dir.rpmsave -rw-r--r-- 1 root root 7 May 30 15:21 zk_session_timeout/etc/mesos-slave: total 16 -rw-r--r-- 1 root root 20 May 30 15:21 attributes -rw-r--r-- 1 root root 13 May 30 15:21 containerizers -rw-r--r-- 1 root root 8 May 30 15:21 logging_level -rw-r--r-- 1 root root 17 May 30 15:21 work_dir

發現多了幾個.rpmsave結尾的文件。
這個是由于mesos-master執行yum remove mesos的時候，mesos-master還是運行狀態，導致刪除時有備份文件產生。

【處理】

刪除上面那幾個文件即可：

rm -f /etc/mesos-master/quorum.rpmsave /etc/mesos-master/work_dir.rpmsave /etc/mesos/zk.rpmsave

轉載于:https://www.cnblogs.com/huangmr0811/p/5570927.html

總結

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