## 1、mongodb 启动失败 ``` Unable to create/open the lock file: /data/db/mongod.lock (Read-only file system). Ensure the user executing mongod is the owner of the lock file and has the appropriate permissions. Also make sure that another mongod instance is not already running on the /data/db directory, terminating ``` 问题出在mongo需要存储在.data/db下面，这个根目录下的权限受限制 所以直接修改数据库存放目录 ``` mongod --dbpath /usr/local/var/db/mongo ``` ## 2、 egg-mongoose model 定义表 自动给表明后缀加s 加了一个user表格，查询一直失败，最后发现生成的是users表