Monitoring
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Monitoring
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Available in VPC
Monitoring supports four types of dashboards, enabling you to check various monitoring information for the performance and history of MongoDB. Monitoring is a service included in NAVER Cloud Platform's Cloud DB for MongoDB, so it can be used without additional charges. The types of dashboards provided by Monitoring are as follows.
- DB Dashboard: Monitoring information related to the MongoDB server in operation
- OS Dashboard: Monitoring information related to the operating system of the MongoDB server in operation
- DB Logs: Records occurrence time and content of all logs that occur from the MongoDB Server in operation
- Query Timeline: Query execution history of the MongoDB server in operation
You can check the performance information of the MongoDB server within the last one year based on average values, and logs and queries from the last 4 weeks through these four types of dashboards. Each dashboard is configured with various graphic charts. You can utilize these charts in your business by printing specific graphic charts or downloading them to your local PC as files using various extensions.
Note
You can set the user to be notified when monitoring results show that a certain indicator has exceeded its threshold or met specific conditions by having them recognized as events. For more information about usage methods for event and notification settings, see Event.
Since the intuitive search and management for the MongoDB performance information is available without additional charges, if you wish to operate servers stably in an environment without a professional database manager, then we recommend utilizing the monitoring indicators provided through the dashboard.
Monitoring page
The basics of using Monitoring are as follows.
| Area | Description |
|---|---|
| ① Menu name | Name of the menu currently being viewed |
| ② Basic features | Check details for Cloud DB for MongoDB, refresh the Monitoring page |
| ③ MongoDB Service list | The list of the MongoDB services in operation and the list of MongoDB servers by service |
| ④ Dashboard | DB dashboard, OS dashboard, DB logs, and query timeline of the selected server from the MongoDB list |
View Monitoring dashboards
The dashboards provided by Monitoring consist of multiple graphic charts. You can display and intuitively check only the information you need from the dashboard of each server. The information shown in the dashboard is collected every minute to be displayed, but it shows the average values. The following describes how to use dashboards.
Click the Services > Database > Cloud DB for MongoDB menus from the VPC environment of the NAVER Cloud Platform console, in that order.
Click the Monitoring menu.
Click the MongoDB Server to be monitored from the list of MongoDB Service.
Click the button for the dashboard you want to check from the page on the right.
Click and select all graphic charts you want to display and check on the dashboard.
From the Period or Search time selection box, click and select the period you want to search, or enter it directly.
Check the results from the dashboard.
- If you want to see the precise indicator value of a specific point on the graphic chart: Mouse-over to the specific point on the graphic chart
- If you want to see the detailed graph: Double-click with the mouse on the graphic chart
- Print graphic chart: Click
, and then click the Print chart menu. - Download graphic chart to your local PC as a file: Click , and then click the file extension menu for the file you want to download.
- Download PNG image: Image file with the .png extension
- Download JPEG image: Image file with the .jpeg extension
- Download PDF document: Document file with the .pdf extension
- Download SVG vector image: Vector image file with the .svg extension
- Download CSV: Document file with the .csv extension
, and then click the Print chart menu.Caution
- In Step 5, the default value is Select all, and in Step 6, the default value is Recent 1H.
- In Step 6, the period can be selected up to one year for DB Dashboard or OS Dashboard, and up to 4 weeks for DB Logs or Query Timeline.
Note
Click the server you want in the Services > Database > Cloud DB for MongoDB > DB Server menus. Then clicking the [Monitoring] button will direct you to the page in Step 4.
DB dashboard graphic charts
The following are the descriptions for the graphic charts configured in DB dashboard.
| Graphic chart | Unit | Description |
|---|---|---|
| Connections | count | Number of maximum DB access sessions available, number of current access sessions, number of active sessions |
| Opcounters | count / sec | Number of executions per second by query type |
| PageFault | count | Number of reads that was read again from not being in the buffer |
| Global Lock | avg activity/sec | Global level lock |
| Database Lock | seconds | Database level lock |
| Collection Lock | total / min | Collection level lock |
| TcmallocSpinLockWait | ns | Waiting time in central heap of tcmalloc |
| WiredTiger Cache | GB | Cache information of the wiredTiger storage engine |
| WiredTiger Eviction | GB | Eviction information of the wiredTiger storage engine |
| WiredTiger Cache Ratio | % | Cache usage of the wiredTiger storage engine |
| Task Executor Pool | count | Connection pool between mongos and shard member |
OS dashboard graphic charts
The following are the descriptions for the graphic charts configured in OS dashboard.
| Graphic chart | Unit | Description |
|---|---|---|
| CPU Usage | used(%) | CPU usage |
| Load Average | - | Server load |
| Memory Usage | used(%) | Memory usage |
| Swap | used(%) | Generated swap memory |
| Disk Used | GB | Disk usage |
| Disk I/O | MB / sec | Generated disk input/output per second |
| Network I/O | MB / sec | Generated network input/output per second |
DB logs graphic charts
The following are the descriptions for the graphic charts configured in DB logs.
| Field | Description |
|---|---|
| Time when event occurred | Time when DB log occurred |
| Log content | DB log content |
Note
In DB logs, you can check the slow query log, login log, and entire log of the MongoDB Server in operation.
Query timeline graphic charts
The following are the descriptions for the graphic charts configured in the query timeline.
| Field | Description |
|---|---|
| Time when event occurred | Time when the query occurred |
| Log content | Content of the executed query |
Audit graphic chart
The Audit feature is provided by the Enterprise Edition product. The Community Edition product doesn’t provide the Audit feature. The following are the descriptions for the graphic charts configured in Audit.
| Field | Description |
|---|---|
| Time when event occurred | Time when the query occurred |
| Log content | Content audit log |
Note
- You can view the DDL, Cluster Monitor, Auth and Entire logs in Audit.
- CRUD Operation Log is not provided because it may cause performance degradation.
- For Enterprise Edition Cluster created before August 18, 2022, Audit can be activated after restarting DB.
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