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What DCS Instance Type Changes Are Supported? Table 1 Instance type change options supported by different DCS instances Version Supported Type Change Precautions Redis 3.0 From single-node to master/standby The instance cannot be connected for several seconds and remains read-only
Does DCS for Redis Support Command Audits? Auditing commands affects read and write performance. Currently, only Proxy Cluster DCS Redis 4.0 and later instances support command audit logs in certain regions. For details, see Viewing Audit Logs of a DCS Redis Instance. Parent topic
What Memcached Version Is Compatible with DCS for Memcached? DCS for Memcached is based on Redis 3.0 and is compatible with Memcached 1.5.1. Parent topic: Memcached Usage
How Does DCS Delete Expired Keys? Question What are the rules for scheduled deletion of expired keys on a daily basis? Can I customize the rules? Mechanisms for Deleting Expired Keys Lazy free deletion: The deletion strategy is controlled in the main I/O event loop. Before a read/
Does DCS for Redis Support Cross-AZ Deployment? Master/Standby, read/write splitting, and cluster DCS Redis instances can be deployed across availability zones (AZs). If instance nodes in an AZ are faulty, nodes in other AZs will not be affected. The standby node automatically becomes
Does DCS for Redis Support Redis Clusters? Yes. DCS Redis 4.0 and later basic edition instances support native clusters (Redis Cluster) Parent topic: Feature
Troubleshooting High CPU Usage of a DCS Redis Instance Symptom The CPU usage of a Redis instance increases dramatically within a short period of time. If the CPU usage is too high, connections may time out, and master/standby switchover may be triggered. Possible Causes The service
Troubleshooting High Memory Usage of a DCS Redis Instance Symptom Redis provides fast database services. If the memory is insufficient, keys may be frequently evicted, the response time may increase, and the QPS may be unstable, affecting service running. This is normal due to Redis
Troubleshooting High Bandwidth Usage of a DCS Redis Instance Overview Redis instances are close to application services, and therefore they process a large amount of data access requests and use network bandwidth. The maximum bandwidth varies depending on the instance specifications
DCS Memcached Instances Do Not Have EIPs Attached Rule Details Table 1 Rule details Parameter Description Rule Name dcs-memcached-no-public-ip Identifier dcs-memcached-no-public-ip Description If a DCS Memcached instance has an EIP attached, this instance is noncompliant. Tag dcs
DCS Redis Instances Do Not Have EIPs Attached Rule Details Table 1 Rule details Parameter Description Rule Name dcs-redis-no-public-ip Identifier dcs-redis-no-public-ip Description If a DCS Redis instance has an EIP attached, this instance is noncompliant. Tag dcs Trigger Type Configuration
Step 2: Discover Alibaba Cloud ECSs Prerequisites You have completed all preparations. You have installed the MgC Agent in the source environment and connected it to MgC. Procedure Sign in to the MgC console. In the navigation pane, under Project, select an application migration project
Example 1: Creating a DCS Redis Instance Scenario This section describes how to create a DCS Redis instance by calling APIs. For details about how to call APIs, see Calling APIs. A 2 GB single-node DCS Redis 5.0 instance is used as an example. The instance uses the Arm CPU architecture
Common Issues of Creating DCS Instances Using an API This topic describes common issues that may occur when you create DCS instances using APIs. Table 1 Common issues of creating DCS instances Issue Solution Setting the Replica Quantity When Purchasing an Instance Using an API If
Enterprise Project Management Service (EPS) Organizations provides your with Service Control Policies for access control. SCPs do not actually grant any permissions to a principal. They only set the permissions boundary for the principal. When SCPs are attached to an organizational
delete - GET /v2/{project_id}/access-policy/{access_policy_id}/objects workspace:accessPolicies:getTarget - PUT /v2/{project_id}/access-policy/{access_policy_id}/objects workspace:accessPolicies:updateTarget - GET /v2/{project_id}/products workspace:products:listDesktopProducts ecs
What Underlying Framework Is Used for Huawei Cloud BCS? Huawei Cloud BCS uses the Hyperledger open-source framework. Hyperledger is a blockchain open-source project hosted by the Linux Foundation to establish an underlying architecture for the distributed ledger platform oriented
Querying Big Keys and Hot Keys in a DCS Redis Instance Big keys and hot keys are common issues. This section describes the big key and hot key analysis function on the DCS console. This function monitors the key that occupies most space of a Redis instance, or that is most frequently
Commands Supported and Disabled by DCS for Memcached (Discontinued) DCS for Memcached is no longer provided. You can use DCS Redis instances instead. Memcached supports the TCP-based text protocol and binary protocol. Any clients compatible with a Memcached protocol can access DCS
Does DCS for Redis Provide Backend Management Software? No. To query Redis configurations and usage information, use redis-cli. If you want to monitor DCS Redis instance metrics, go to the Cloud Eye console or perform the following operations. Procedure Log in to the DCS console.
