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Process of Using DCS How to Manage DCS Instances You can access Distributed Cache Service (DCS) from the web-based management console or by using RESTful application programming interfaces (APIs) through HTTPS requests. Using the console You can sign up and log in to the console,
Restarting a DCS Instance To recover an instance in cases such as high memory fragmentation ratio or fault occurrence, try restarting the instance on the DCS console. DCS instances can be restarted in batches. Notes and Constraints The DCS instances must be in the Running or Faulty
Deleting a DCS Instance On the DCS console, you can delete one or multiple DCS instances at a time. You can also delete all instance creation tasks that have failed to run. Notes and Constraints The DCS instances exist, and must be in the Running, Faulty, or Stopped state. Deleting
Common DCS Metrics This section describes common Redis metrics. Table 1 Common metrics Metric Description CPU Usage This metric indicates the maximum value in each measurement period (minute-level: every minute; second-level: every 5 seconds). For a single-node or master/standby instance
DCS Instance Types Single-Node Redis Master/Standby Redis Proxy Cluster Redis Redis Cluster Read/Write Splitting Redis Comparing DCS Redis Instance Types Single-Node Memcached (Discontinued) Master/Standby Memcached (Discontinued)
DCS Instance Specifications Redis 4.0/5.0/6.0/7.0 Redis 6.0 Enterprise Edition Redis 3.0 Instance Specifications (Discontinued) Memcached Instance Specifications (Discontinued)
What Is DCS? Huawei Cloud Distributed Cache Service (DCS) is an online, distributed, fast in-memory cache service compatible with Redis. It is reliable, scalable, usable out of the box, and easy to manage, meeting your requirements for high read/write performance and fast data access
Auto-renewing a DCS Instance Auto-renewal is easier and prevents DCS instances from being automatically deleted if you forget to manually renew them. The auto-renewal rules are as follows: The first auto-renewal date and billing period are calculated based on the expiration date of
DCS Best Practices This section summarizes best practices of Distributed Cache Service (DCS) in common scenarios. Each practice is given a description and procedure. Table 1 DCS best practices Best Practice Description Serializing Access to Frequently Accessed Resources Describes
Suggestions on Using DCS Service Usage Principle Description Remarks Deploy services nearby to reduce latency. If your service and DCS instance are deployed far from each other (not in the same region) or with a high latency (connected through public networks), the read/write performance
DCS Data Security Security is a shared responsibility between Huawei Cloud and you. Huawei Cloud is responsible for the security of cloud services to provide a secure cloud. As a tenant, you should properly use the security capabilities provided by cloud services to protect data,
DCS Dashboard Template DCS is an in-memory database service. It is compatible with Redis, an in-memory database engine, and meets your requirements for high concurrency and fast data access. LTS collects, stores, and queries cloud resource operation records. You can use these records
Creating a DCS Instance Function This API is used to create a DCS instance which is billed in pay-per-use mode. Calling Method For details, see Calling APIs. URI POST /v2/{project_id}/instances Table 1 Path Parameters Parameter Mandatory Type Description project_id Yes String Project
Restoring a DCS Instance Function This API is used to restore the backup data to a specific DCS instance. Only master/standby and cluster DCS instances can be backed up and restored, while single-node instances cannot. Calling Method For details, see Calling APIs. URI POST /v2/{project_id
Querying a DCS instance Function This API is used to query the details about a specified DCS instance. Calling Method For details, see Calling APIs. URI GET /v2/{project_id}/instances/{instance_id} Table 1 Path Parameters Parameter Mandatory Type Description instance_id Yes String
Creating a DCS Instance Function This API is used to create a DCS instance billed in pay-per-use mode. URI POST /v1.0/{project_id}/instances Table 1 describes the parameter. Table 1 Parameter description Parameter Type Mandatory Description project_id String Yes Project ID. For details
Querying a DCS Instance Function This API is used to query the details about a specified DCS instance. URI GET /v1.0/{project_id}/instances/{instance_id} Table 1 describes the parameters. Table 1 Parameter description Parameter Type Mandatory Description project_id String Yes For
Restoring a DCS Instance Function This API is used to restore a specified DCS instance. Only master/standby and cluster DCS instances can be backed up and restored, while single-node instances cannot. URI POST /v1.0/{project_id}/instances/{instance_id}/restores Table 1 describes the
DCS Instance Statuses Table 1 DCS instance statuses State Description CREATING Creating is the status before the Running state. CREATEFAILED The DCS instance failed to be created. RUNNING The instance is running properly. Only instances in the Running state can provide in-memory cache
cluster:resize - dws:cluster:checkRestoreTable - dws:cluster:scaleIn - dws:cluster:checkSupportFineGrainedBackup - dws:cluster:configureNetwork - POST /v1.0/{project_id}/snapshots/{snapshot_id}/linked-copy dws:cluster:copySnapshot - POST /v1.0/{project_id}/clusters dws:cluster:create ecs
