linux - MongoDB服务重启后失败

Question

我正在尝试为我的开发环境设置一个副本集，并让三台机器运行带有 mongod 服务的 debian 9.3stretch。复制集正在工作，一切看起来都很好。

但是当我重新启动其中一台服务器时，mongod 服务不会启动。当我检查状态时，它说失败 status=48

    mongod.service - MongoDB Database Server
   Loaded: loaded (/lib/systemd/system/mongod.service; enabled; vendor preset: enabled)
   Active: failed (Result: exit-code) since Tue 2018-08-28 22:17:37 CEST; 10s ago
     Docs: https://docs.mongodb.org/manual
  Process: 392 ExecStart=/usr/bin/mongod --config /etc/mongod.conf (code=exited, status=48)
 Main PID: 392 (code=exited, status=48)
      CPU: 33ms

aug 28 22:17:37 staging-manager-1 systemd[1]: Started MongoDB Database Server.
aug 28 22:17:37 staging-manager-1 mongod[392]: 2018-08-28T22:17:37.389+0200 I CONTROL  [main] Automatically disabling TLS 1.0, to fo
aug 28 22:17:37 staging-manager-1 systemd[1]: mongod.service: Main process exited, code=exited, status=48/n/a
aug 28 22:17:37 staging-manager-1 systemd[1]: mongod.service: Unit entered failed state.
aug 28 22:17:37 staging-manager-1 systemd[1]: mongod.service: Failed with result 'exit-code'.

我已经使用systemctl enable mongod启用了该服务，并且在状态中可以看到它确实已启用，但是为什么我重新启动机器后它会失败？

更新:

root@machine:/home/<user># journalctl -u mongod
-- Logs begin at Thu 2018-08-30 21:11:33 CEST, end at Thu 2018-08-30 21:26:42 CEST. --
aug 30 21:11:33 staging-manager-1 systemd[1]: Started MongoDB Database Server.
aug 30 21:11:33 staging-manager-1 mongod[398]: 2018-08-30T21:11:33.388+0200 I CONTROL  [main] Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'
aug 30 21:11:33 staging-manager-1 systemd[1]: mongod.service: Main process exited, code=exited, status=48/n/a
aug 30 21:11:33 staging-manager-1 systemd[1]: mongod.service: Unit entered failed state.
aug 30 21:11:33 staging-manager-1 systemd[1]: mongod.service: Failed with result 'exit-code'.


root@machine:/home/<user># ll /etc/init
total 48
-rw-r--r-- 1 root root  278 mei 29  2017 anacron.conf
-rw-r--r-- 1 root root 1875 jul 18 21:01 docker.conf
-rw-r--r-- 1 root root 2493 jun  2  2015 networking.conf
-rw-r--r-- 1 root root  933 jun  2  2015 network-interface.conf
-rw-r--r-- 1 root root  530 jun  2  2015 network-interface-container.conf
-rw-r--r-- 1 root root 1756 jun  2  2015 network-interface-security.conf
-rw-r--r-- 1 root root 1359 mrt 14  2017 sddm.conf
-rw-r--r-- 1 root root  637 mrt  1 13:36 ssh.conf
-rw-r--r-- 1 root root  337 jun 13 22:20 udev.conf
-rw-r--r-- 1 root root  360 jun 13 22:20 udevmonitor.conf
-rw-r--r-- 1 root root  352 jun 13 22:20 udevtrigger.conf
-rw-r--r-- 1 root root  138 jan 23  2017 usb-modeswitch-upstart.conf
root@machine:/home/<user># ll /etc/init.d
total 168
-rwxr-xr-x 1 root root 5336 feb  1  2016 alsa-utils
-rwxr-xr-x 1 root root 2014 mei 29  2017 anacron
-rwxr-xr-x 1 root root 8181 apr  5 20:32 apache2
-rwxr-xr-x 1 root root 2489 mei 13 18:52 apache-htcacheclean
-rwxr-xr-x 1 root root 2401 jan 23  2017 avahi-daemon
-rwxr-xr-x 1 root root 2948 sep 13  2017 bluetooth
-rwxr-xr-x 1 root root 1904 nov 18  2015 cgroupfs-mount
-rwxr-xr-x 1 root root 1232 apr  7  2017 console-setup.sh
-rwxr-xr-x 1 root root 3049 okt  7  2017 cron
-rwxr-xr-x 1 root root 2816 jul 10 15:57 cups
-rwxr-xr-x 1 root root 1961 jan 19  2017 cups-browsed
-rwxr-xr-x 1 root root 2813 mrt  2 09:59 dbus
-rwxr-xr-x 1 root root 3843 jul 18 21:01 docker
-rwxr-x--- 1 root root 4285 jul 20 07:27 elasticsearch
-rwxr-xr-x 1 root root 3033 aug  9 21:30 gdm3
-rwxr-xr-x 1 root root 1604 feb  2  2017 gdomap
-rwxr-xr-x 1 root root 3809 mrt  7 19:29 hwclock.sh
-rwxr-xr-x 1 root root 1479 mei 19  2016 keyboard-setup.sh
-rwxr-xr-x 1 root root 2044 dec 26  2016 kmod
-rwxr-xr-x 1 root root 2241 apr 26  2017 minissdpd
-rwxr-xr-x 1 root root 4597 sep 16  2016 networking
-rwxr-xr-x 1 root root 1757 mrt 18  2017 network-manager
-rwxr-xr-x 1 root root  612 dec  4  2015 pppd-dns
-rwxr-xr-x 1 root root 1191 mei 17 12:56 procps
-rwxr-xr-x 1 root root 4355 dec 10  2017 rsync
-rwxr-xr-x 1 root root 2868 jan 18  2017 rsyslog
-rwxr-xr-x 1 root root 2330 mei 21  2017 saned
-rwxr-xr-x 1 root root 1222 apr  3  2017 screen-cleanup
-rwxr-xr-x 1 root root 1808 mrt 14  2017 sddm
-rwxr-xr-x 1 root root 2117 aug  2  2017 speech-dispatcher
-rwxr-xr-x 1 root root 2484 okt 12  2016 spice-vdagent
-rwxr-xr-x 1 root root 4033 mrt  1 13:36 ssh
-rwxr-xr-x 1 root root  731 jun  5  2017 sudo
-rwxr-xr-x 1 root root 6087 jun 13 22:20 udev
-rwxr-xr-x 1 root root 1391 mei  6  2017 unattended-upgrades
-rwxr-xr-x 1 root root 2757 nov 23  2016 x11-common

Answer 1

这就是整个输出消息？

检查默认的 mongod 端口(27017)是否未被使用。

netstat -a

或者尝试从不同的端口启动

mongod --fork --port 8000