# Troubleshooting

We collect the most common troubleshooting of using MongoDB for your reference:

Many troubleshooting is closely related to the Server, if you can confirm troubleshooting is related to Cloud Platform, please refer to Cloud Platform Documentation (opens new window)

# Database service could not be started?

Insufficient disk space, insufficient memory, and configuration file errors can make database service could not be started

It is recommended to first check through the command.

# restart mongodb service
systemctl status mongod
journalctl  -u mongod.service

# view disk space
df -lh

# view memory rate
free -lh