Hot Key Diagnosis

Constraints

• For cluster GeminiDB Redis instances, the top 30 hot keys that are accessed most frequently can be diagnosed. For primary/standby instances, the top 20 hot keys that are accessed most frequently can be diagnosed.
• After audit log is enabled, hot key diagnosis history will be audited.
• A key that receives 1,000 or more queries per second (QPS) is considered a hot key. When the QPS value is greater than 6,000, the accurate value is not collected.

Procedure

1. Log in to the management console.
2. In the service list, choose Databases > GeminiDB Redis API.
3. On the Instances page, locate the target instance and click its name.
4. In the navigation pane on the left, choose Diagnosis Analysis.
5. Choose Hot Key Diagnosis.
   Figure 1 Hot key diagnosis
   

   Table 1 Parameters for hot key diagnosis

   Parameter	Description
   Name	Name of a hot key.
   Type	Type of a hot key, which can be string, hash, list, set, or sorted set.
   Latest Command	Latest command executed for the hot key.
   QPS	Number of accesses to a hot key per second. NOTE: The maximum QPS that can be displayed is 6,000. If a QPS exceeds 6,000, the accurate value will not be collected.
   DB	Database where a hot key is located.