發(fā)現(xiàn)問(wèn)題

現(xiàn)在公司的服務(wù)器經(jīng)常性斷電，所以要經(jīng)常性重啟所有的服務(wù)，然而這些redis、mysql、mongo等服務(wù)中，mongo經(jīng)常性出現(xiàn)重啟失敗的情況，根據(jù)之前的經(jīng)驗(yàn)和網(wǎng)絡(luò)上帖子的信息，這里記錄一下總結(jié)；

首先說(shuō)明一下，這里安裝的服務(wù)都是通過(guò)yum 或者 apt 安裝的，這是我一直推薦和使用的操作，因?yàn)檫@樣安裝整潔、該放什么類型的文件到哪個(gè)目錄下都是一樣的（如：/var/log/xxx/xxx.log）

報(bào)錯(cuò)主要問(wèn)題如下：

[root@localhost mongo]# systemctl status mongod
● mongod.service - MongoDB Database Server
   Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled; vendor preset: disabled)
   Active: failed (Result: exit-code) since 一 2021-06-28 14:32:51 CST; 6s ago
     Docs: https://docs.mongodb.org/manual
  Process: 3351 ExecStart=/usr/bin/mongod $OPTIONS (code=exited, status=1/FAILURE)
  Process: 3348 ExecStartPre=/usr/bin/chmod 0755 /var/run/mongodb (code=exited, status=0/SUCCESS)
  Process: 3345 ExecStartPre=/usr/bin/chown mongod:mongod /var/run/mongodb (code=exited, status=0/SUCCESS)
  Process: 3343 ExecStartPre=/usr/bin/mkdir -p /var/run/mongodb (code=exited, status=0/SUCCESS)

6月 28 14:32:51 localhost systemd[1]: Starting MongoDB Database Server...
6月 28 14:32:51 localhost mongod[3351]: about to fork child process, waiting until server is ready for connections.
6月 28 14:32:51 localhost mongod[3351]: forked process: 3354
6月 28 14:32:51 localhost mongod[3351]: ERROR: child process failed, exited with 1
6月 28 14:32:51 localhost mongod[3351]: To see additional information in this output, start without the "--fork" option.
6月 28 14:32:51 localhost systemd[1]: mongod.service: control process exited, code=exited status=1
6月 28 14:32:51 localhost systemd[1]: Failed to start MongoDB Database Server.
6月 28 14:32:51 localhost systemd[1]: Unit mongod.service entered failed state.
6月 28 14:32:51 localhost systemd[1]: mongod.service failed.