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Can BCS Instances Deployed on the Public Cloud Access Blockchain Nodes on Other Clouds? BCS instances now can be deployed only on the public cloud. Each user can deploy multiple BCS instances. Multiple public cloud users' BCS instances can form a consortium blockchain. Huawei Cloud-dominated
How Do I Clear Residual Log Files After a BCS Service Is Deleted? After a BCS service is deleted, log files are not automatically deleted from the cluster nodes. You are advised to manually delete the residual files to save space. Use the remote management tool to log in to each cluster
How Do I Get Access to the Partners of Huawei Cloud BCS for More Services? If you have requirements for service chaincode or client app design and development, reach us by sales@huaweicloud.com. BCS and its partners will provide you with comprehensive solutions based on your business
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
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
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
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
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
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
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
Can I Build My Own Anti-DDoS System Using HUAWEI CLOUD ECSs? Yes, you can. You can set up an anti-DDoS system on your own for your business using ECSs of HUAWEI CLOUD. However, Huawei Cloud will block or freeze traffic when detecting frequent flood attacks, which may interrupt your
How Do I View Chaincode Logs If My BCS Instance Uses Fabric v2.2? Symptom Chaincode container logs of a Fabric v2.2 BCS instance cannot be found on the AOM console. Root Cause Currently, non-Fabric-v2.2 BCS instances use Kubernetes to start chaincode containers, whereas Fabric v2.2
What Can I Do If My BCS Instance Is Abnormal Because My Account Is in Arrears? Renew your BCS instance at Billing Center > Renewal, and the instance status will become normal within 5 to 10 minutes. If the BCS instance remains abnormal, refer to Abnormal Instance Statuses. Parent
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
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?
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
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
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
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
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
