CentOS6 啟動MongoDB 3.4失敗解決方法

下指令service mongod start 先遇到mongodb log status = 2

嘗試把/etc/mongod.conf 下列行刪掉

systemLog:

  logAppend: true

  logRotate: reopen

以及把下列檔案刪掉

/etc/logrotate.d/mongodb

再下指令

service mongod start

確認執行狀態

service mongod status

出現下列錯誤訊息

● mongod.service - High-performance, schema-free document-oriented database

   Loaded: loaded (/usr/lib/systemd/system/mongod.service; enabled; vendor preset: disabled)

   Active: failed (Result: exit-code) since Wed 2017-08-09 10:58:29 CST; 13s ago

     Docs: https://docs.mongodb.org/manual

  Process: 25673 ExecStart=/usr/bin/mongod $OPTIONS (code=exited, status=51)

  Process: 25670 ExecStartPre=/usr/bin/chmod 0755 /var/run/mongodb (code=exited, status=0/SUCCESS)

  Process: 25668 ExecStartPre=/usr/bin/chown mongod:mongod /var/run/mongodb (code=exited, status=0/SUCCESS)

  Process: 25666 ExecStartPre=/usr/bin/mkdir -p /var/run/mongodb (code=exited, status=0/SUCCESS)

 Main PID: 25673 (code=exited, status=51)

Aug 09 10:58:28 chttl-97d3548f99e4a8cb.local.com systemd[1]: Starting High-performance, schema-free document-oriented database...

Aug 09 10:58:28 chttl-97d3548f99e4a8cb.local.com systemd[1]: Started High-performance, schema-free document-oriented database.

Aug 09 10:58:28 chttl-97d3548f99e4a8cb.local.com mongod[25673]: about to fork child process, waiting until server is ready for connections.

Aug 09 10:58:28 chttl-97d3548f99e4a8cb.local.com mongod[25673]: forked process: 25676

Aug 09 10:58:29 chttl-97d3548f99e4a8cb.local.com systemd[1]: mongod.service: main process exited, code=exited, status=51/n/a

Aug 09 10:58:29 chttl-97d3548f99e4a8cb.local.com systemd[1]: Unit mongod.service entered failed state.

Aug 09 10:58:29 chttl-97d3548f99e4a8cb.local.com systemd[1]: mongod.service failed.

參考這篇 https://stackoverflow.com/questions/18524925/mongodb-service-wont-start

將/var/lib/mongo的權限都換成mongod 重啟成功！

原文：

- Check the file permissions inside your database folder

    - note you need to be in your dbpath folder mine was /var/lib/mongo I went to cd /var/lib

    - I ran ls -l mongo

- This showed me that databases were owned by root, which is wrong. I ran the following to fix this: chown -R mongod:mongod mongo.