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问题详情

指令：

./mongod -f /usr/local/mongodb-4.4.1/conf/mongodb.conf


报错如下：

启动mongod时

{"t":{"$date":"2020-09-18T11:22:05.358+08:00"},"s":"F",  "c":"-",        "id":23091,   "ctx":"initandlisten","msg":"Fatal assertion","attr":{"msgid":40486,"file":"src/mongo/transport/transport_layer_asio.cpp","line":919}}
{"t":{"$date":"2020-09-18T11:22:05.358+08:00"},"s":"F",  "c":"-",        "id":23092,   "ctx":"initandlisten","msg":"\n\n***aborting after fassert() failure\n\n"}

启动mongo时

about to fork child process, waiting until server is ready for connections.
forked process: 4631
ERROR: child process failed, exited with 14
To see additional information in this output, start without the "--fork" option.

问题排查

1. 按照网上教程删除了data/db下的mongod.lock无法启动，但是报错的信息改变了
2. 尝试重新修复mongod
   
   命令如下
   
[localhost bin]$./mongod --repair

   
   修复后无法启动
3. 仔细看了启动mongod时的错误，提示不能允许mongo操作运行，怀疑是因为权限不够，所以选择使用sudo启动，命令如下
   
sudo ./mongod -f /usr/local/mongodb-4.4.1/conf/mongodb.conf

   
   成功启动mongo
   
   

总结与反思

在遇到问题时要多看系统报出log，而不是一味查看别人的教程。

学习之路漫漫，还需要更加努力前行！