How Do I Know Whether an Instance Is Single-DB or Multi-DB?
Single-node, read/write splitting, and master/standby: multi-DB (256 DBs, numbered from 0 to 255)
Proxy Cluster: single-DB by default. Multi-DB can be enabled. For details, see What Are the Constraints on Implementing Multiple Databases on a Proxy Cluster Instance?
Redis Cluster: single-DB. Multi-DB is not supported.
You can connect to a DCS Redis 4.0 or later instance on the console to check whether it is multi-DB.
![Click to enlarge](https://support.huaweicloud.com/eu/dcs_faq/en-us_image_0000001455935941.png)
![Click to enlarge](https://support.huaweicloud.com/eu/dcs_faq/en-us_image_0000001405497088.png)
Redis Usage FAQs
- Can I Change the AZ for an Instance?
- Can I Change the VPC and Subnet for a DCS Redis Instance?
- Can I Customize or Change the Port for Accessing a DCS Instance?
- Can I Modify the Connection Addresses for Accessing a DCS Instance?
- Why Does It Take a Long Time to Start a Cluster DCS Instance?
- What Should I Do If an Error Occurs in redis_exporter?
- Does DCS for Redis Provide Backend Management Software?
- Can I Recover Deleted Data of a DCS Instance?
- How Do I Check Redis Memory Usage?
- Why Is the Capacity or Performance of a Shard of a Redis Cluster Instance Overloaded When That of the Instance Is Still Below the Bottleneck?
- Why Does an OOM Error Occur During a Redis Connection?
- What Clients Can I Use for Redis Cluster in Different Programming Languages?
- Why Do I Need to Configure Timeout for Redis Cluster?
- Why Am I Seeing a Timeout Error When Reading Data from Redis?
- Explaining and Using Hash Tags
- Why Does a Key Disappear in Redis?
- Will Cached Data Be Retained After an Instance Is Restarted?
- How Do I Know Whether an Instance Is Single-DB or Multi-DB?
- What Are the Constraints on Implementing Multi-DB on a Proxy Cluster Instance?
- How Do I Create a Multi-DB Proxy Cluster Instance?
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