TencentDB for MongoDB provides a self-service troubleshooting solution in the console to help you quickly and easily troubleshoot common MongoDB performance problems.
Slow query is the most common performance problem of MongoDB. You can use the slow query management and slow log query features in the console for troubleshooting.
Log in to the TencentDB for MongoDB Console and click an instance name to enter the instance management page.
If the number of connections exceeds the upper limit, you can use the connections management and restart features in the console and optimize the service for troubleshooting.
- If the number of connections reaches or exceeds 80% of the upper limit and affects the establishment of new connections, you can click Increase Connections in the console to increase the maximum number of connections to 150% of the original limit for the next 6 hours.
- If the problem persists, please contact the aftersales service or submit a ticket for assistance.
- Replica sets on v4.0 do not have mongos instances.
- Restarting the mongod instance is highly risky and will cause a momentary disconnection, during which if data is written, rollback may be triggered, leading to data loss. Therefore, the restart feature is not enabled by default. If you need to enable it, please contact the aftersales service or submit a ticket for assistance.
You can troubleshoot the service for optimization.