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        • Should I Use a Domain Name or an IP Address to Connect to a DCS Redis Instance? - Distributed Cache Service

          Should I Use a Domain Name or an IP Address to Connect to a DCS Redis Instance? - Distributed Cache Service

          Should I Use a Domain Name or an IP Address to Connect to a DCS Redis Instance? Single-node, read/write splitting, and Proxy Cluster: Each instance has only one IP address and one domain name address. The addresses remain unchanged before and after master/standby switchover. You can

          Help > Distributed Cache Service > FAQs > Client and Network Connection
        • How Do I Access a DCS Redis Instance Through Redis Desktop Manager? - Distributed Cache Service

          How Do I Access a DCS Redis Instance Through Redis Desktop Manager? - Distributed Cache Service

          How Do I Access a DCS Redis Instance Through Redis Desktop Manager? You can access a DCS Redis 3.0 instance through the Redis Desktop Manager within a VPC or over the Internet. Within a VPC Enter the address, port number (6379), and authentication password of the DCS instance you

          Help > Distributed Cache Service > FAQs > Client and Network Connection
        • Why Is Redisson Distributed Lock Not Supported by DCS Proxy Cluster Redis 3.0 Instances? - Distributed Cache Service

          Why Is Redisson Distributed Lock Not Supported by DCS Proxy Cluster Redis 3.0 Instances? - Distributed Cache Service

          Why Is Redisson Distributed Lock Not Supported by DCS Proxy Cluster Redis 3.0 Instances? Redisson implements lock acquisition and unlocking in the following process: Redisson lock acquisition and unlocking are implemented by running Lua scripts. During lock acquisition, the EXISTS

          Help > Distributed Cache Service > FAQs > Redis Usage
        • Can I Export Backup Data of DCS Redis Instances to RDB Files on the Console? - Distributed Cache Service

          Can I Export Backup Data of DCS Redis Instances to RDB Files on the Console? - Distributed Cache Service

          Can I Export Backup Data of DCS Redis Instances to RDB Files on the Console? DCS Redis 3.0 instances No. On the console, backup data of a DCS Redis 3.0 instance can be exported only to AOF files. To export data to RDB files, run the following command in redis-cli: redis-cli -h {redis_address

          Help > Distributed Cache Service > FAQs > Data Backup, Export, and Migration
        • Why Can't I Select the Required Enterprise Project When Creating a DCS Instance? - Distributed Cache Service

          Why Can't I Select the Required Enterprise Project When Creating a DCS Instance? - Distributed Cache Service

          Why Can't I Select the Required Enterprise Project When Creating a DCS Instance? Symptom The desired enterprise project is not displayed during instance creation. Cause The user group does not have DCS permissions in the desired enterprise project. Solution Log in to the DCS console

          Help > Distributed Cache Service > FAQs > Instance Creation and Permissions
        • What Can I Do If a Lettuce 6.x Client Is Incompatible with My DCS Instance? - Distributed Cache Service

          What Can I Do If a Lettuce 6.x Client Is Incompatible with My DCS Instance? - Distributed Cache Service

          What Can I Do If a Lettuce 6.x Client Is Incompatible with My DCS Instance? Symptom When a Lettuce 6.x client is connected to a Proxy Cluster DCS Redis 4.x/5.x instance, the error message "NOAUTH Authentication required" is displayed. Figure 1 Error message example Analysis In Lettuce

          Help > Distributed Cache Service > FAQs > Client and Network Connection
        • Do DCS Redis Instances Support Data Persistence? What Is the Impact of Persistence? - Distributed Cache Service

          Do DCS Redis Instances Support Data Persistence? What Is the Impact of Persistence? - Distributed Cache Service

          Do DCS Redis Instances Support Data Persistence? What Is the Impact of Persistence? Is Persistence Supported? Single-node: No Master/Standby, read/write splitting, and cluster (except single-replica clusters): Yes How Is Data Persisted? DCS Redis instances supports only AOF persistence

          Help > Distributed Cache Service > FAQs > Feature
        • How Do I Add Shards to a Cluster DCS Redis Instance Without Changing the Memory? - Distributed Cache Service

          How Do I Add Shards to a Cluster DCS Redis Instance Without Changing the Memory? - Distributed Cache Service

          How Do I Add Shards to a Cluster DCS Redis Instance Without Changing the Memory? After a Proxy Cluster or Redis Cluster instance is created, you can reduce the capacity of each shard and add more shards without changing the total memory. For example, if an 8 GB instance has 4 shards

          Help > Distributed Cache Service > FAQs > Instance Scaling and Upgrade
        • Why Do I Fail to Access a DCS Instance Using Its Domain Name Address? - Distributed Cache Service

          Why Do I Fail to Access a DCS Instance Using Its Domain Name Address? - Distributed Cache Service

          Why Do I Fail to Access a DCS Instance Using Its Domain Name Address? If a client fails to connect to a DCS instance using the domain name address, set the DNS server address of the subnet to the private DNS server address. For details, see How Do I Switch to a Private DNS Server?

          Help > Distributed Cache Service > FAQs > Client and Network Connection
        • How Do I Enable or Disable SSL for Public Access to a DCS Redis 3.0 Instance? - Distributed Cache Service

          How Do I Enable or Disable SSL for Public Access to a DCS Redis 3.0 Instance? - Distributed Cache Service

          How Do I Enable or Disable SSL for Public Access to a DCS Redis 3.0 Instance? When you enable public access, SSL is enabled by default. To disable SSL encryption, perform the following steps: Open the page for configuring public access. Disable SSL encryption, and click OK. In the

          Help > Distributed Cache Service > FAQs > Security
        • Why Can't I View the Subnet and Security Group Information When Creating a DCS Instance? - Distributed Cache Service

          Why Can't I View the Subnet and Security Group Information When Creating a DCS Instance? - Distributed Cache Service

          Why Can't I View the Subnet and Security Group Information When Creating a DCS Instance? This may be because you do not have the Server Administrator and VPC Administrator roles. For details on how to add user permissions, see Modifying User Group Permissions. Parent topic: Instance

          Help > Distributed Cache Service > FAQs > Instance Creation and Permissions
        • How Do I View Current Concurrent Connections and Maximum Connections of a DCS Redis Instance? - Distributed Cache Service

          How Do I View Current Concurrent Connections and Maximum Connections of a DCS Redis Instance? - Distributed Cache Service

          How Do I View Current Concurrent Connections and Maximum Connections of a DCS Redis Instance? Viewing Concurrent Connections of a DCS Redis Instance On the Cache Manager page of the console, click View Metric in the row containing the desired instance. On the Cloud Eye console, find

          Help > Distributed Cache Service > FAQs > Monitoring and Alarm
        • Where Are DCS Instance Backup Files Stored? How Many of Them Can Be Stored? - Distributed Cache Service

          Where Are DCS Instance Backup Files Stored? How Many of Them Can Be Stored? - Distributed Cache Service

          Where Are DCS Instance Backup Files Stored? How Many of Them Can Be Stored? Backup files of DCS instances are stored to OBS. Currently, each DCS instance stores up to 24 latest backup files. The earliest ones will be automatically deleted if the amount exceeds. Parent topic: Data

          Help > Distributed Cache Service > FAQs > Data Backup, Export, and Migration
        • Why Can't Security Groups Be Configured for DCS Redis 4.0 and Later Basic Edition Instances? - Distributed Cache Service

          Why Can't Security Groups Be Configured for DCS Redis 4.0 and Later Basic Edition Instances? - Distributed Cache Service

          Why Can't Security Groups Be Configured for DCS Redis 4.0 and Later Basic Edition Instances? Currently, DCS Redis 4.0 and later basic edition instances use VPC endpoints and do not support security groups. To allow access only from specific IP addresses to a DCS Redis 4.0 or later

          Help > Distributed Cache Service > FAQs > Security
        • Can I Migrate Data from a Multi-DB Source Redis Instance to a Cluster DCS Redis Instance? - Distributed Cache Service

          Can I Migrate Data from a Multi-DB Source Redis Instance to a Cluster DCS Redis Instance? - Distributed Cache Service

          Can I Migrate Data from a Multi-DB Source Redis Instance to a Cluster DCS Redis Instance? A total of 256 DBs (DB 0 to DB 255) can be configured for a single-node, read/write splitting, or master/standby DCS instance. If the target is a Redis Cluster instance (a Redis Cluster instance

          Help > Distributed Cache Service > FAQs > Data Backup, Export, and Migration
        • Can I Upgrade Version for a DCS Redis Instance, for Example, from Redis 4.0 to Redis 5.0? - Distributed Cache Service

          Can I Upgrade Version for a DCS Redis Instance, for Example, from Redis 4.0 to Redis 5.0? - Distributed Cache Service

          Can I Upgrade Version for a DCS Redis Instance, for Example, from Redis 4.0 to Redis 5.0? No. Different Redis versions use different underlying architectures. The Redis version used by a DCS instance cannot be changed once the instance is created. If your service requires the features

          Help > Distributed Cache Service > FAQs > Instance Scaling and Upgrade
        • Why Is "(error) NOAUTH Authentication required" Displayed When I Access a DCS Redis Instance? - Distributed Cache Service

          Why Is "(error) NOAUTH Authentication required" Displayed When I Access a DCS Redis Instance? - Distributed Cache Service

          Why Is "(error) NOAUTH Authentication required" Displayed When I Access a DCS Redis Instance? This is because you have enabled password-free access for the instance. To prevent the error message from appearing, do not enter any password. Parent topic: Client and Network Connection

          Help > Distributed Cache Service > FAQs > Client and Network Connection
        • Why Is Memory of a DCS Redis Instance Unchanged After Data Migration Using Rump, Even If No Error Message Is Returned? - Distributed Cache Service

          Why Is Memory of a DCS Redis Instance Unchanged After Data Migration Using Rump, Even If No Error Message Is Returned? - Distributed Cache Service

          Why Is Memory of a DCS Redis Instance Unchanged After Data Migration Using Rump, Even If No Error Message Is Returned? For details on how to use Rump, see the Online Migration from Another Cloud Using Rump. Possible causes: Rump does not support migration to cluster DCS instances.

          Help > Distributed Cache Service > FAQs > Data Backup, Export, and Migration
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